Flora of New York/Coreopsideae…Heliantheae

A reviewed version of this page, approved on 16 July 2019, was based off this revision.

← Anthemideae, Inuleae, Helenieae	Flora of New York — Asterales : Asteraceae : Asteroideae (4) Coreopsideae, Tageteae, Chaenactideae, Polymnieae, Ambrosieae				→ Millerieae, Madieae, Eupatorieae
	Table of contents	Genus index	Protected species index	Invasive species index

Tribe Coreopsideae

Subtribe Coreopsidinae

Bidens

Commonly known as beggarticks and bur-marigolds, the genus Bidens contains about 15 species that grow in New York. Most of these are wetland plants.	B. vulgata	B. frondosa	B. cernua
	B. tripartita	B. bipinnata	B. beckii
	B. bidentoides	B. laevis	B. aristosa

Bidens vulgata-frondosa

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Bidens
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens vulgata Greene 1899. Bidens vulgata Greene 1899. B. frondosavar. puberula 1901. B. vulgatavar. puberula 1932. B. puberula (Wiegand) Rydb. 1938. B. vulgatafo. puberula	Tall beggarticks, Tall beggar-ticks, Big devil's beggarticks, Common beggarticks, Tall bur-marigold Bident vulgaire	Native, CoC: 0, Secure FAC Annual, Herb-forb		NYFA: 5	USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos LBJ Images Wikispecies
Bidens frondosa 1753. Bidens frondosa L. 1899. B. melanocarpa Wiegand 1899. B. melanocarpavar. pallida	Devil's beggar-ticks, Beggar-ticks, Stick-tights Bident feuillu	Native, CoC: 2, Secure FACW Annual, Herb-forb		NYFA: 5	USDA-NX Go Botany ARS-GRIN ITIS FNA Tropicos Images Wikispecies Note: ^[1]
Bidens discoidea (Torr. & A.Gray) Britton 1893. Bidens discoidea (Torr. & A.Gray) Britton	Small beggar-ticks, Discoid beggarticks, Bident discoïde	Native, CoC: 8, Likely secure FACW Annual, Herb-forb		NYFA: 4	USDA-NN FNA Images Wikispecies
Bidens trichosperma (Michx.) Britton 1803. Coreopsis trichosperma Michx. 1884. C. trichospermavar. tenuiloba 1893. B. trichosperma (Michx.) Britton 1928. B. coronatavar. tenuiloba 1938. B. coronatavar. brachyodonta 1938. B. coronatavar. trichosperma	Crowned beggarticks, Crowned tick-seed sunflower	Native, CoC: 10, Likely secure OBL Annual, Herb-forb		NYFA: 4	USDA-NN ARS-GRIN ITIS FNA Tropicos Images Wikispecies
Bidens aristosa (Michx.) Britton 1803. Coreopsis aristosa Michx. 1893. B. aristosa (Michx.) Britton 1913. B. aristosavar. fritcheyi 1913. B. aristosavar. mutica	Midwestern beggarticks, Bearded beggarticks, Long-bracted beggarticks, Tickseed sunflower	Introduced, N. America native		NYFA: X	USDA-NX Go Botany ARS-GRIN FNA Tropicos BONAP Images Wikispecies
Bidens polylepis S.F.Blake 1834. Coreopsis involucrata Nutt. 1893. B. involucrata Britton non Phil. 1922. B. polylepis S.F.Blake 1925. B. polylepisvar. retrorsa	Ozark beggar-ticks, Ozark tick-seed sunflower	Introduced, N. America native		NYFA: X	USDA-NX ARS-GRIN ITIS FNA Tropicos Images Wikispecies
↑ USDA-NRCS-PLANTS indicates Bidens frondosa is not native to Canada or Alaska, but ARS-GRIN shows that it is native to both Canada and Alaska.

Bidens cernua-laevis

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Bidens
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens cernua L. 1753. Bidens cernua L.	Nodding beggar-ticks, Nodding bur-marigold, Pitchfork, Sticktight Bident penché, Fourchettes	Native, CoC: 4, Secure OBL-FACW Annual, Herb-forb		NYFA: 5	USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos BONAP BBG Images Wikispecies
Bidens laevis (L.) Britton, Sterns & Poggenb.	Smooth beggar-ticks, Bur-marigold	Native, CoC: 6, Threatened, NYNHP: 2^[1]		NYFA: 2	USDA-N0 Go Botany BBG Images Wikispecies
↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens laevis. Threatened, S2/G5.

Bidens tripartita-connata

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Bidens
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens tripartita L. ssp. comosa (Gray) A. Haines 1753. Bidens tripartita L. p.p. 1867. B. connatavar. comosa 1897. B. comosa (A.Gray) Wiegand 1901. B. acuta (Wiegand) Britton 2010. B. tripartitassp. comosa	Strawstem beggarticks, Threelobed beggarticks, Three-lobed beggar-ticks Bident à trois divisions	Native, CoC: 4, Secure OBL-FACW Annual, Herb-forb		NYFA: 5	USDA-NN Go Botany ARS-GRIN ITIS FNA Images Wikispecies
Bidens connata Muhl. ex Willd. 1803. B. connata Muhl. ex Willd.	Purplestem beggarticks, Purple-stem beggarticks, Purple-stemmed beggar-ticks, Purple-stemmed swamp beggar-ticks, Purple-stemmed tickseed, Connate beggarticks Bident à feuilles connées, Bident conné, Bident soudé	Native, CoC: 4, Secure OBL-FACW Annual, Herb-forb		NYFA: 5	USDA-NN Go Botany ARS-GRIN ITIS LBJ Images Wikispecies
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens bidentoides (Nutt.) Britton 1842. Coreopsis bidentoides Nutt. 1893. Bidens bidentoides Britton	Estuary beggar-ticks, Maryland bur-marigold, Delmarva beggarticks	Native, CoC: 6, Vulnerable, NYNHP: 3^[1] FACW Annual, Herb-forb		NYFA: 3	USDA-N0 Go Botany-0 ITIS Images Wikispecies
Bidens eatonii Fernald 1903. Bidens eatonii Fernald 1903. B. eatoniivar. fallax 1917. B. eatoniivar. kennebecensis 1925. B. eatoniivar. interstes 1925. B. eatoniivar. mutabilis 1925. B. eatoniivar. simulans 1925. B. eatoniivar. major 1929. B. eatoniivar. illicita	Eaton's beggar-ticks, Eaton's burr marigold Bident d'Eaton	Native, CoC: 10, Unranked		NYFA: 1?	USDA-NN Go Botany VASCAN ITIS FNA Tropicos Images Wikispecies
Genus Bidens (excluded taxa)	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens hyperborea Greene 1901. Bidens hyperborea Greene 1915. B. hyperborea var. colpophila (Fernald & H.St.John) Fernald 1918. B. colpophila Fernald & H.St.John auct. B. eatonii non Fernald (1903)	Estuary beggar-ticks, Coastal beggarticks, Northern beggarticks, Northern estuarine beggarticks Bident hyperboréal	Native, N.Y. excluded, NYNHP: 1^[2] OBL Annual, Herb-forb		NYFA-Excluded	USDA-NN FNA BONAP IPN Images Wikispecies
↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens bidentoides. Rare, S3/G3G4. ↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens hyperborea var. hyperborea. Endangered, S1/G4T2T4.

Bidens bipinnata-pilosa

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Bidens
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens bipinnata L. 1753. Bidens bipinnata L.	Spanish-needles, Hemlock beggar-ticks Bident bipenné	Native, CoC: 0, Likely secure FACU Annual, Herb-forb		NYFA: 4	USDA-NX Go Botany ARS-GRIN FNA CABI Images Wikispecies
Bidens pilosa L. 1753. Bidens pilosa L. 1791. Bidens odorata Cav. 1836. Bidens alba (L.) DC. 1852. Bidens pilosavar. radiata 1975. Bidens albavar. radiata	Hairy beggar-ticks, White beggar-ticks, Blackjack Bident poilu, Bident pileux	Introduced from tropical America, Potentially invasive Annual/perennial, Herb-forb		NYFA: 0	USDA-N0 Go Botany VASCAN ARS-GRIN Tropicos BONAP Images Wikispecies
Bidens tenuisecta A.Gray 1849. Bidens tenuisecta A.Gray	Slim-lobed beggar-ticks	Introduced from southwestern US, Impersistent Annual, Herb-forb		NYFA: Xm	USDA-N0 BONAP Images Wikispecies

Bidens beckii

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Bidens
Genus Bidens	Beggarticks	N.Y. Status	Images	Distribution	NY NPT
Bidens beckii Torr. ex Spreng. 1821. Bidens beckii Torr. ex Spreng. 1901. Megalodonta beckii (Torr. ex Spreng.) Greene 1936. M. beckiivar. beckii 1936. M. beckiivar. oregonensis 1938. M. beckiivar. hendersonii 1901. M. nudata Greene	Beck's water-marigold, Beck's beggar-ticks, Henderson's water-marigold, Oregon water-marigold Bident de Beck	Native, CoC: 7, Vulnerable OBL Perennial, Herb-forb		NYFA: 3	USDA-NN Go Botany ITIS FNA Tropicos Images Wikispecies

Coreopsis

Most of the naturalized Coreopsis plants found in New York are probably escaped ornamentals, native to the southern and midwestern parts of the United States. The exception is Coreopsis rosea, a rare Atlantic-coastal-plain endemic, which may also be found as a garden escape on Long Island and perhaps elsewhere in the state.

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Coreopsis
Genus Coreopsis	Tickseed	N.Y. Status	Images	Distribution	NY NPT
Coreopsis rosea Nutt. 1818. Coreopsis rosea Nutt. 1826. Calliopsis rosea (Nutt.) Spreng.	Pink coreopsis, Rose coreopsis, Pink tickseed	Native, CoC: 9, Rare FACW Perennial, Herb-forb		NYFA: 3	USDA-NN Go Botany ARS-GRIN ITIS FNA Tropicos NatureServe BONAP IPN Images Wikispecies
Coreopsis grandiflora Hogg ex Sweet	Largeflower tickseed, Large-flowered tickseed	Introduced, US South native, Garden escape		NYFA: X	USDA-NX Go Botany NatureServe BONAP Images Wikispecies
Coreopsis lanceolata L. (1753)	Sand coreopsis, Lanceleaf tickseed, Lance-leaved tickseed	Introduced, N. America native		NYFA: X	USDA-NN Go Botany ARS-GRIN NatureServe BONAP Images Wikispecies
Coreopsis major Walter	Forest coreopsis, Forest tickseed, Greater tickseed	Introduced, US South native		NYFA: X	USDA-N Images Wikispecies
Coreopsis tinctoria Nutt. var. tinctoria 1821. Coreopsis tinctoria Nutt.	Plains coreopsis, Plains tickseed, Golden tickseed	Introduced, N. America native		NYFA: X	USDA-XX Images Wikispecies
Genus Coreopsis (excluded taxa)	Tickseed	N.Y. Status	Images	Distribution	NY NPT
Coreopsis verticillata	Thread-leaved tickseed, Whorled coreopsis	N. America native VA to GA, N.Y. excluded, Widely cultivated		NYFA-Excluded	USDA-NX NatureServe BONAP Images Wikispecies
Coreopsis auriculata L. Coreopsis auriculata L.	Lobed tickseed	Introduced, US South native		NYFA: 0	USDA-N0 NatureServe BONAP Images Wikispecies
Coreopsis palmata L. Coreopsis palmata L.	Prairie coreopsis	Introduced, N. America native		NYFA: 0	USDA-N0 ARS-GRIN NatureServe BONAP Images Wikispecies

Cosmos

Asterales — Asteraceae — Asteroideae — Coreopsideae — Coreopsidinae — Cosmos
Cosmos	Cosmos	N.Y. Status	Images	Distribution	NY NPT
Cosmos bipinnatus Cav. (1791)	Garden cosmos, Mexican aster	Introduced from Mexico, Impersistent		NYFA: X	USDA-XX ARS-GRIN ITIS Images Wikispecies
Cosmos sulphureus Cav. (1791)	Orange cosmos, Sulphur cosmos, Cosmos soufré	Introduced from Mexico, Impersistent		NYFA: X	USDA-XX ARS-GRIN ITIS Images Wikispecies

Tribe Tageteae

Subtribe Tagetinae

Asterales — Asteraceae — Asteroideae — Tageteae — Tagetinae
Genus Tagetes	Marigold	N.Y. Status	Images	Distribution	NY NPT
Tagetes erecta	Aztec marigold, Saffron marigold, Tagète rose d'Inde	Introduced, Impersistent, Mexico & SA native		NYFA: Xm	USDA-XW ARS-GRIN Images Wikispecies
Tagetes patula	French marigold, Oeillet d'inde	Introduced, No specimens, Mexico native		NYFA: X0	USDA-X0 ARS-GRIN Images Wikispecies
Genus Dyssodia Cav.	Dyssodia	N.Y. Status	Images	Distribution	NY NPT
Dyssodia papposa (Vent.) Hitchc. Boebera papposaTagetes papposa	Fetid dogweed, Fetid marigold	Introduced, N. America native, Impersistent		NYFA: X	USDA-NX Images Wikispecies

Tribe Chaenactideae

Chaenactis

Chaenactis (pincushions or dusty maidens) are native to western North America.

Asterales — Asteraceae — Asteroideae — Chaenactideae — Chaenactis
Genus Chaenactis	Pincushion	N.Y. Status	Images	Distribution	NY NPT
Chaenactis stevioides Hook. & Arn. 1839. Chaenactis stevioides Hook. & Arn. 1907. C. stevioidesvar. brachypappa 1940. C. gillespiei Stockw. 1940. C. furcata Stockw. 1940. C. stevioidesvar. thornberi 1940. C. latifolia Stockw. 1940. C. mexicana Stockw.	Desert pincushion, Esteve's pincushion, Esteve pincushion, Broad-flowered pincushion, Steve's pincushion, Steve's dusty maiden	Introduced from western N. America, Impersistent, Not naturalized^[1]		NYFA: X	USDA-N0 ARS-GRIN ITIS FNA Tropicos BONAP Images Wikispecies
↑ Florence Beckwith (1917) Plants of Monroe County, New York, and adjacent territory : second supplementary list

Tribe Polymnieae

Polymnia

Asterales — Asteraceae — Asteroideae — Polymnieae
Genus Polymnia	Polymnia	N.Y. Status	Images	Distribution	NY NPT
Polymnia canadensis L. Polymnia radiata (A.Gray) Small	White-flowered leafcup	Native, Likely secure		NYFA: 4	USDA-NN Go Botany Images Wikispecies

Tribe Heliantheae

Subtribe Ecliptinae

Eclipta

Asterales — Asteraceae — Asteroideae — Heliantheae — Ecliptinae
Genus Eclipta	Eclipta	N.Y. Status	Images	Distribution	NY NPT
Eclipta prostrata (L.) L. 1753. Verbesina prostrata L. 1753. Verbesina alba L. 1771. Eclipta prostrata (L.) L. 1771. Eclipta erecta L. (i) 1771. Eclipta punctata L. (i) 1848. Eclipta alba (L.) Hassk.	False daisy, Yerba de tago, Yerba de tajo Éclipte blanche	Mixed, Unranked		NYFA: 1	USDA-N Go Botany VASCAN FNA BONAP Images Wikispecies

Subtribe Verbesininae

Verbesina

Asterales — Asteraceae — Asteroideae — Heliantheae — Verbesininae
Genus Verbesina	Crownbeard	N.Y. Status	Images	Distribution	NY NPT
Verbesina alternifolia Ridan alternifolia Actinomeris alternifolia Verbesina alternifolia	Wingstem	Introduced, N. America native		NYFA: X?	USDA-NN Images Wikispecies
Verbesina encelioides ssp. ssp. encelioides	Eastern golden crownbeard	Introduced, N. America native		NYFA: X	USDA-N0 Images Wikispecies
Verbesina encelioides ssp. exauriculata	Western golden crownbeard	Introduced, N. America native		NYFA: X	USDA-N0 Images Wikispecies

Subtribe Engelmanniinae

Chrysogonum

Asterales — Asteraceae — Asteroideae — Heliantheae — Engelmanniinae — Chrysogonum
Genus Chrysogonum	Chrysogonum	N.Y. Status	Images	Distribution	NY NPT
Chrysogonum virginianum var. virginianum C. virginianum var. dentatum	Green-and-gold	Introduced, N. America native		NYFA: X	USDA-N0 NatureServe BONAP Images Wikispecies

Silphium

Asterales — Asteraceae — Asteroideae — Heliantheae — Engelmanniinae — Silphium
Genus Silphium	Rosinweed	N.Y. Status	Images	Distribution	NY NPT
Silphium perfoliatum L. var. perfoliatum	Cup-plant Cup-plant rosinweed	Introduced, Highly invasive, NYIS: 78%^[1], N. America native, CP-5^[2], Prohibited^[3]		NYFA: X	USDA-NN WFO Go Botany ITIS FNA NatureServe BONAP Images Wikispecies
Silphium asteriscus var. trifoliatum S. trifoliatum var. trifoliatum	Whorled rosinweed	Introduced, N. America native		NYFA: X	USDA-N0 Images Wikispecies
Silphium laciniatum	Compass-plant	Introduced, N. America native		NYFA: X	USDA-NN Images Wikispecies
Silphium terebinthinaceum Jacq. var. terebinthinaceum 1770. Silphium terebinthinaceum Jacq. 1898. Silphium rumicifolium Small 1951. S. terebinthinaceum var. lucy-brauniae Steyerm.	Prairie dock ⓘ Prairie rosinweed ⓘ	Introduced, N. America native Perennial, Herb-forb		NYFA: Xm	USDA-NN FNA Tropicos Images Wikispecies
↑ New York non-native plant invasiveness assessment – Silphium perfoliatum var perfoliatum: High (78%). ↑ Appendix 5. Plant species of concern (Watch List) within the central Finger Lakes region. Policy on the use of non-native plants in Cornell Botanic Gardens' accessioned collections (2018) ↑ New York State Department of Environmental Conservation Regulation 6 NYCRR Part 575 Prohibited and Regulated Invasive Species and Connecticut

Subtribe Rudbeckiinae

Rudbeckia

Rudbeckia is a North American genus and very commomly found in New York, but only a few of its taxa are considered to be truly native to the state. Rudbeckia is here separated into the sections described by the Flora of North America.^[1]

According to the New York Flora Atlas, among the Rudbeckia species, only R. laciniata var. laciniata is fully native to New York. However, R. triloba var. triloba is thought to be native in an unspecified part of the state, and introduced elsewhere.

↑ Flora of North America Editorial Committee, e. (2006). Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Fl. N. Amer. Vol. 21.

Rudbeckia sect. Macrocline

The most common true New York native Rudbeckia species is Rudbeckia laciniata, the cut-leaved coneflower or green-headed coneflower.

Asterales — Asteraceae — Asteroideae — Heliantheae — Rudbeckiinae — Rudbeckia sect. Macrocline
Genus Rudbeckia sect. Macrocline	Coneflower	N.Y. Status	Images	Distribution	NY NPT
Rudbeckia laciniata L. var. laciniata 1753. Rudbeckia laciniata L. 1922. R. laciniatavar. gaspereauensis 1924. R. laciniatavar. hortensia 1962. R. laciniatavar. bipinnata	Cutleaf coneflower, Cut-leaved coneflower, Green-headed coneflower, Tall coneflower, Wild golden glow Rudbeckie laciniée	Native, CoC: 5, Secure FACW Perennial, Herb-forb, Sun - shade		NYFA: 5	USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos NatureServe BONAP LBJ Images Wikispecies

Rudbeckia sect. Rudbeckia

Asterales — Asteraceae — Asteroideae — Heliantheae — Rudbeckiinae — Rudbeckia sect. Rudbeckia
Genus Rudbeckia sect. Rudbeckia	Coneflower	N.Y. Status	Images	Distribution	NY NPT
Rudbeckia triloba L. var. triloba 1753. Rudbeckia triloba L. 1903. Rudbeckia beadlei Small 1937. Rudbeckia trilobavar. beadlei	Brown-eyed Susan, Three-lobed coneflower Rudbeckie trilobée	Native, CoC: 1, Unk. naturalization Biennial-perennial, Herb-forb		NYFA: X^[1]	USDA-N Go Botany FNA Tropicos NatureServe BONAP Images Wikispecies
Rudbeckia hirta L. 1753. Rudbeckia hirta L. 1834. R. bicolor Nutt. 1894. R. brittonii Small 1900. R. amplectens T.V.Moore 1900. R. longipes T.V.Moore 1900. R. sericea T.V.Moore 1901. R. monticola Small 1904. R. hirtavar. pulcherrima 1937. R. hirtavar. brittonii 1937. R. hirtavar. monticola	Common black-eyed Susan Blackeyed Susan Black-eyed Susan Black-eyed coneflower Gloriosa daisy Hairy coneflower Yellow daisy Rudbeckie tardive	Introduced, N. America native Biennial-perennial, Herb-forb		NYFA: X	USDA-N Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos NatureServe BONAP Images Wikispecies
Rudbeckia fulgida Aiton var. speciosa 1828. Rudbeckia speciosa Wender. 1958. R. fulgidavar. speciosa Rudbeckia gloriosa Hort.	Showy coneflower, Orange coneflower	Introduced, N. America native		NYFA: X	USDA-NX Go Botany ARS-GRIN NatureServe BONAP Images Wikispecies
Rudbeckia fulgida Aiton var. sullivantii 1901. Rudbeckia sullivantii C.L. Boynton & Beadle 1945. R. speciosavar. sullivantii	Sullivant's coneflower	Introduced, N. America native		NYFA: X	USDA-N Go Botany NatureServe BONAP Images Wikispecies Note: ^[2]
Rudbeckia subtomentosa Pursh	Sweet coneflower	Introduced, N. America native		NYFA: X	USDA-N Go Botany NatureServe BONAP Images Wikispecies
↑ Rudbeckia triloba is probably native to parts of New York, and introduced in others. ↑ Some sources, including USDA-NRCS PLANTS database, consider R. fulgida var. sullivantii to be a synonym of R. fulgida var. speciosa

Ratibida

Asterales — Asteraceae — Asteroideae — Heliantheae — Rudbeckiinae — Ratibida
Genus Ratibida	Prairie-coneflower	N.Y. Status	Images	Distribution	NY NPT
Ratibida pinnata (Vent.) Barnh. Rudbeckia pinnata Vent.	Pinnate prairie coneflower, Gray-head prairie coneflower	Introduced, Midwest native		NYFA: X	USDA-NN ARS-GRIN NatureServe BONAP Images Wikispecies
Ratibida columnifera (Nutt.) Woot. & Standl. Rudbeckia columnifera Nutt.	Upright prairie coneflower	Introduced, US West native		NYFA: X	USDA-NN NatureServe BONAP Images Wikispecies

Subtribe Ambrosiinae

Ambrosiinae...^[1]

Ambrosia

Asterales — Asteraceae — Asteroideae — Heliantheae — Ambrosiinae — Ambrosia
Genus Ambrosia L. 1753	Ragweed	N.Y. Status	Images	Distribution	NY NPT
Ambrosia artemisiifolia L. 1753. Ambrosia artemisiifolia L. 1753. Ambrosia elatior L. 1821. A. artemisiifoliavar. elatior Descourt. 1849. Ambrosia glandulosa Scheele 1907. A. artemisiifoliavar. paniculata Blank. 1922. Ambrosia monophylla Rydb.	Annual ragweed, Common ragweed, Short ragweed, Low ragweed Petite herbe à poux, Ambroisie annuelle, Ambroisie élevée	Native, Secure, Very weedy Annual, Herb-forb		NYFA: 5	USDA-MN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos Images Wikispecies Note: ^[2]
Ambrosia trifida L. var. trifida 1753. Ambrosia trifida L. 1836. Ambrosia aptera DC. 1842. A. trifidavar. integrifolia Torr. & A.Gray 1849. A. trifidavar. texana Scheele	Great ragweed, Giant ragweed Grande herbe à poux, Ambroisie trifide	Native, Likely secure Annual, Herb-forb		NYFA: 4	USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos Images Wikispecies
Ambrosia × helenae Rouleau Ambrosia artemisiifolia × Ambrosia trifida	Helen ragweed, St. Hélène Island ragweed, Hybrid of Annual ragweed & Great ragweed Herbe à poux de l’île Sainte-Hélène	Native, Endangered Perennial, Herb-forb		NYFA: 1?	USDA-NN Go Botany VASCAN ITIS Images Wikispecies
Ambrosia psilostachya DC. 1836. Ambrosia psilostachya DC. 1842. Ambrosia coronopifolia Torr. & A.Gray 1907. A. psilostachyavar. lindheimeriana Blank. 1922. Ambrosia rugelii Rydberg 1925. A. psilostachyavar. californica S.F.Blake 1950. A. psilostachyavar. coronopifolia Farw. ex Fernald auct. Ambrosia cumanensis non Kunth	Western ragweed, Perennial ragweed, Cuman ragweed, Naked-spine ambrosia Herbe à poux vivace	Introduced, N. America native Perennial, Herb-forb		NYFA: X?	USDA-NN Go Botany VASCAN FNA Tropicos IPN Images Wikispecies
Ambrosia bidentata Michx.	Lanceleaf ragweed, Lance-leaved ragweed	Introduced, N. America native, Endangered Annual, Herb-forb		NYFA: 1?	USDA-N0 Go Botany Images Wikispecies
Ambrosia × intergradiens W.H.Wagner Ambrosia artemisiifolia × Ambrosia psilostachya	Intergrading ragweed, Hybrid of Annual ragweed & Western ragweed	Introduced, N. America native, No reports		NYFA: 0	USDA-N0 ITIS Images Wikispecies
↑ Flora of North America: Asteraceae (tribe Heliantheae) subtribe Ambrosiinae ↑ The USDA-NRCS PLANTS database for Ambrosia artemisiifolia L. shows 3 varieties of the species with varying native status in New York. Other sources, including Flora of North America north of Mexico (2006) treat these varieties as synonyms as shown above.

Xanthium

Although the New York Flora Atlas and the USDA-NRCS Plants database list three varieties of Xanthium strumarium, the Flora of North America does not recognize any varieties for this species, finding that their differences "mostly involved subtle differences in the burs."^[1] The other sources used here follow that circumscription.

↑ John L. Strother, FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.

Asterales — Asteraceae — Asteroideae — Heliantheae — Ambrosiinae — Xanthium
Genus Xanthium	Cocklebur	N.Y. Status	Images	Distribution	NY NPT
Xanthium strumarium L. 1753. Xanthium strumarium L.	Cocklebur, Rough cockleburr, Canada cockleburr, Common cockleburr Lampourde glouteron, Lampourde ordinaire	Native, Secure		NYFA: (5)	USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos NatureServe Images Wikispecies
Xanthium strumarium var. canadense (Mill.) Torr. & A.Gray 1768. Xanthium canadense Mill. 1784. Xanthium echinatum Murray 1842. X. strumariumvar. canadense	Canada cockle-bur	Native, Secure		NYFA: 5	USDA-NN NatureServe Images Wikispecies
Xanthium strumarium var. glabratum (DC.) Cronquist 1768. Xanthium chinense Mill. 1788. Xanthium americanum Walter 1836. X. macrocarpumvar. glabratum DC. 1945. X. strumariumvar. glabratum Cronquist	Rough cocklebur	Native, Likely secure		NYFA: 4	USDA-NN NatureServe Images Wikispecies
Xanthium strumarium var. strumarium L. 1753. Xanthium strumarium L.	Rough cocklebur	Introduced, N. America native		NYFA: X	USDA-NN NatureServe Images Wikispecies
Xanthium spinosum L.	Spiny cocklebur	Introduced, S. America native		NYFA: X	USDA-XX Images Wikispecies

Iva

Jesuit's bark (Iva frutescens) is a small shrub that is considered to be competitive with Phragmites in upper saltmarshes.

Asterales — Asteraceae — Asteroideae — Heliantheae — Ambrosiinae — Iva
Genus Iva	Marshelder	N.Y. Status	Images	Distribution	NY NPT
Iva frutescens L. 1753. Iva frutescens L. 1906. Iva oraria Bartlett 1935. Iva frutescensvar. oraria 1960. Iva frutescensssp. oraria	Saltarsh elder, Bigleaf marsh-elder, Bigleaf sumpweed, Jesuit's bark, Maritime marsh-elder Ive arbustive, Ive frutescente	Native, CoC: 7, Likely secure FACW Perennial, Herb-forb, subshrub		NYFA: 4	USDA-NN Go Botany VASCAN ARS-GRIN ITIS NatureServe BONAP Images Wikispecies

Cyclachaena

Asterales — Asteraceae — Asteroideae — Heliantheae — Ambrosiinae — Cyclachaena
Genus Cyclachaena	Sumpweed	N.Y. Status	Images	Distribution	NY NPT
Cyclachaena xanthiifolia (Nutt.) Fresenius	Big marsh-elder, Coarse sumpweed, Marsh-elder, Carelessweed	N. America native western prairies, Naturalized		NYFA: Xn	USDA-NX Go Botany ARS-GRIN Images Wikispecies

Parthenium

Asterales — Asteraceae — Asteroideae — Heliantheae — Ambrosiinae — Parthenium
Genus Parthenium	Feverfew	N.Y. Status	Images	Distribution	NY NPT
Parthenium integrifolium L. var. integrifolium	Wild quinine, American feverfew	Introduced, N. America native		NYFA: X	USDA-N0 Go Botany NatureServe BONAP Images Wikispecies
Parthenium hysterophorus L.	Santa Maria fever-few	Introduced from South America, Mexico		NYFA: X	USDA-XX NatureServe BONAP Images Wikispecies

Subtribe Zinniinae

Heliopsis

Asterales — Asteraceae — Asteroideae — Heliantheae — Zinniinae — Heliopsis
Genus Heliopsis	Ox-eye	N.Y. Status	Images	Distribution	NY NPT
Heliopsis helianthoides (L.) Sweet var. helianthoides 1753. Buphthalmum helianthoides L. 1826. Heliopsis helianthoides (L.) Sweet	Smooth oxeye, Ox-eye, Sunflower-everlasting, False sunflower	Native, CoC: 5, Secure FACU Perennial, Herb-forb, Sun		NYFA: 5	USDA-NN Go Botany ARS-GRIN LBJ Images Wikispecies
Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald 1819. Heliopsis scabra Dunal 1942. Heliopsis helianthoidesvar. scabra	Rough ox-eye, Sunflower-everlasting	Native, CoC: 5, Secure FACU Perennial, Herb-forb, Sun		NYFA: 5	USDA-NN Go Botany ARS-GRIN Images Wikispecies

Echinacea

Asterales — Asteraceae — Asteroideae — Heliantheae — Zinniinae — Echinacea
Genus Echinacea	Purple-coneflower	N.Y. Status	Images	Distribution	NY NPT
Echinacea purpurea Brauneria purpurea Rudbeckia purpurea	Eastern purple coneflower	Introduced from midwestern US, N. America native, Not naturalized		NYFA: X	USDA-NX Go Botany NatureServe BONAP Images Wikispecies Note: PG
Echinacea pallida Brauneria pallida Rudbeckia pallida	Pale-purple coneflower	Introduced from midwestern US, N. America native, Not naturalized		NYFA: X	USDA-NN Go Botany NatureServe BONAP Images Wikispecies
Genus Echinacea (excluded taxa)	Purple-coneflower	N.Y. Status	Images	Distribution	NY NPT
Echinacea tennesseensis (Beadle) Small 1898. Brauneria tennesseensis Beadle 1933. Echinacea tennesseensis Small 2002. Echinacea pallida var. tennesseensis Binns et al.	Tennessee purple coneflower	N. America native, N.Y. excluded, Cultivated, No reports		NYFA: 0	USDA-N0 NatureServe Images Wikispecies

Subtribe Helianthinae

Helianthus

Helianthus sect. Helianthus

The species in the Helianthus section of genus Helianthus are annual sunflowers. Their disk corollas and style branches are usually red or purple. Their leaves have petioles and are mostly alternate.^[1]

↑ Timme, et. al. (2007) "High-resolution phylogeny for Helianthus, ..." American Journal of Botany 94(11): 1838.

Asterales — Asteraceae — Asteroideae — Heliantheae — Helianthinae — Helianthus sect. Helianthus
Genus Helianthus sect. Helianthus	Sunflower	N.Y. Status	Images	Distribution	NY NPT
Helianthus annuus L.	Common sunflower	Introduced, N. America native, Adventive Annual, Herb-forb		NYFA: X	USDA-NX Go Botany BONAP Images Wikispecies
Helianthus petiolaris Nutt. ssp. petiolaris	Prairie sunflower	Introduced, N. America native Annual, Herb-forb		NYFA: X	USDA-NN BONAP Images Wikispecies

Helianthus sect. Divaricati

The Divaricati section consists of perennial plants that grow from rhizomes, tubers, or crown buds.^[1]

Asterales — Asteraceae — Asteroideae — Heliantheae — Helianthinae — Helianthus sect. Divaricati
Genus Helianthus ser. Corona-solis	Sunflower	N.Y. Status	Images	Distribution	NY NPT
Helianthus decapetalus L. H. scrophulariifolius Britton H. tracheliifolius Mill.	Thinleaf sunflower, Thin-leaved sunflower	Native, CoC: 7, Secure Perennial, Herb-forb		NYFA: 5	USDA-NN Go Botany Images Wikispecies
Helianthus divaricatus L.	Woodland sunflower	Native, CoC: 7, Secure Perennial, Herb-forb		NYFA: 5	USDA-NN Go Botany Images Wikispecies
Helianthus strumosus L.	Rough sunflower	Native, CoC: 6, Secure FACU Perennial, Herb-forb		NYFA: 5	USDA-NN Go Botany Images Wikispecies
Helianthus giganteus L.	Tall sunflower	Native, CoC: 4, Likely secure FACW Perennial, Herb-forb, Sun		NYFA: 4	USDA-NN Go Botany Images Wikispecies
Helianthus × ambiguus (A.Gray) Britton (pro sp.) [ divaricatus × giganteus ]	Hybrid woodland/tall sunflower	Native, No recent reports		NYFA: H	USDA-N0 Images Wikispecies
Helianthus grosseserratus M. Martens	Saw-toothed sunflower	Introduced, N. America native		NYFA: X	USDA-NX Go Botany Images Wikispecies
Helianthus hirsutus Raf. (1820)	Stiff-haired sunflower, Hairy sunflower	Introduced, N. America native		NYFA: X	USDA-NX Go Botany Images Wikispecies
Helianthus maximiliani Schrad.	Maximilian sunflower	Introduced, N. America native		NYFA: X	USDA-NN Go Botany NatureServe BONAP Images Wikispecies
Helianthus mollis	Ashy sunflower, Downy sunflower	Introduced, N. America native		NYFA: X	USDA-N Go Botany Images Wikispecies
Helianthus tuberosus L. 1753. Helianthus tuberosus L. 1803. H. tomentosus Michx. 1884. H. tuberosus var. subcanescens A.Gray	Jerusalem artichoke, Earth-apple, Sunchoke Topinambour, Artichaut de Jérusalem	Introduced, N. America native Perennial, Herb-forb		NYFA: X	USDA-NN Go Botany ARS-GRIN FNA Tropicos Images Wikispecies
Helianthus salicifolius A.Dietr.	Willowleaf sunflower, Willow-leaved sunflower Soleil à feuilles de saule	Introduced from southcentral US, N. America native		NYFA: X	USDA-N0 ARS-GRIN ITIS Images Wikispecies
Helianthus × doronicoides Lam. (pro sp.) [ giganteus × mollis ]	Sunflower	Introduced			Images Wikispecies
Helianthus × laetiflorus Pers. (pro sp.) [ pauciflorus × tuberosus ]	Cheerful sunflower	Introduced		NYFA: Xn	USDA-NX Images Wikispecies
Genus Helianthus ser. Angustifolii	Sunflower	N.Y. Status	Images	Distribution	NY NPT
Helianthus angustifolius L. 1753. Helianthus angustifolius L.	Swamp sunflower, Narrow-leaved sunflower	Native, Threatened		NYFA: 2	USDA-N0 Go Botany Images Wikispecies
Genus Helianthus ser. Atrorubentes	Sunflower	N.Y. Status	Images	Distribution	NY NPT
Helianthus pauciflorus Nutt. ssp. subrhomboideus	Stiff sunflower	Introduced, N. America native		NYFA: X	USDA-NN Go Botany Images Wikispecies
↑ Timme, et. al. (2007) "High-resolution phylogeny for Helianthus, ..." American Journal of Botany 94(11): 1838.

Heliomeris

Asterales — Asteraceae — Asteroideae — Heliantheae — Helianthinae — Heliomeris
Genus Heliomeris Nutt.	False-goldeneye	N.Y. Status	Images	Distribution	NY NPT
Heliomeris multiflora Nutt. var. multiflora Gymnolomia multiflora Viguiera multiflora	False goldeneye, Showy false goldeneye, Showy goldeneye	Introduced, Impersistent, U.S. West native		NYFA: X	USDA-N0 Images Wikispecies

← Anthemideae, Inuleae, Helenieae	Flora of New York — Asterales : Asteraceae : Asteroideae (4) Coreopsideae, Tageteae, Chaenactideae, Polymnieae, Heliantheae				→ Millerieae, Madieae, Eupatorieae
	Table of contents	Genus index	Protected species index	Invasive species index

[1] USDA-NRCS-PLANTS indicates Bidens frondosa is not native to Canada or Alaska, but ARS-GRIN shows that it is native to both Canada and Alaska.

[2] New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens laevis. Threatened, S2/G5.

[3] New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens bidentoides. Rare, S3/G3G4.

[4] New York Natural Heritage Program. 2024. Online Conservation Guide for Bidens hyperborea var. hyperborea. Endangered, S1/G4T2T4.

[5] Florence Beckwith (1917) Plants of Monroe County, New York, and adjacent territory : second supplementary list

[6] New York non-native plant invasiveness assessment – Silphium perfoliatum var perfoliatum: High (78%).

[CP5-7] Appendix 5. Plant species of concern (Watch List) within the central Finger Lakes region. Policy on the use of non-native plants in Cornell Botanic Gardens' accessioned collections (2018)

[prohibit-8] New York State Department of Environmental Conservation Regulation 6 NYCRR Part 575 Prohibited and Regulated Invasive Species and Connecticut

[9] Flora of North America Editorial Committee, e. (2006). Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Fl. N. Amer. Vol. 21.

[10] Rudbeckia triloba is probably native to parts of New York, and introduced in others.

[11] Some sources, including USDA-NRCS PLANTS database, consider R. fulgida var. sullivantii to be a synonym of R. fulgida var. speciosa

[12] Flora of North America: Asteraceae (tribe Heliantheae) subtribe Ambrosiinae

[13] The USDA-NRCS PLANTS database for Ambrosia artemisiifolia L. shows 3 varieties of the species with varying native status in New York. Other sources, including Flora of North America north of Mexico (2006) treat these varieties as synonyms as shown above.

[14] John L. Strother, FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.

[15] Timme, et. al. (2007) "High-resolution phylogeny for Helianthus, ..." American Journal of Botany 94(11): 1838.

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