Flora of New York/Hypericaceae, Podostemaceae, Elatinaceae

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The Malpighiales ... as described in the Angiosperm Phylogeny Website

Order	Family	Subfamily	Tribe	Genus	Common names	#
Malpighiales	Hypericaceae	—	Hypericeae	Triadenum	marsh St. John's wort	2
				Hypericum	St. John's wort	18
	Podostemaceae	Podostemoideae	—	Podostemum	river weed	1
	Elatinaceae	—	—	Elatine	water wort	3
	Violaceae	Violoideae	Violeae	Hybanthus	greenviolet	1
				Viola	violet	57
	Salicaceae	Salicoideae	—	Populus	cottonwood, aspen, poplar	11
				Salix	willow	36
	Euphorbiaceae	Acalyphoideae	Acalypheae	Acalypha	copperleaf, three-seed mercury	4
				Mercurialis	herb mercury	1
				Ricinus	castor bean	1
		Crotonoideae	Crotoneae	Croton	rushfoil, hogwort	1
		Euphorbioideae	Euphorbieae	Euphorbia	spurge, sandmat	21
	Linaceae	Linoideae	Lineae	Linum	flax	9

Family Hypericaceae

The Hypericaceae (St. John's-wort family) is sometimes included in the Clusiaceae.

Tribe Hypericeae

Genus Triadenum

fam. Hypericaceae – tribe Hypericeae – genus Triadenum
Triadenum	Marsh St. Johnswort	N.Y. Status	Images	Distribution	2
Triadenum virginicum  (L.) Raf.	Marsh St. John's wort, Virginia marsh St. John's wort	Native, Secure			NYFA-5 USDA-NN ITIS Images, wsp
Triadenum fraseri  (Spach) Gleason	Fraser's marsh St. Johnswort	Native, Secure			NYFA-5 USDA-NN ITIS Images, wsp

Genus Hypericum

Hypericum sect. Trigynobrathys

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Trigynobrathys
Hypericum sect. Trigynobrathys	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum mutilum  L. 1753. Hypericum mutilum  L.	Dwarf St. John's-wort	Native, Secure			NYFA-5 USDA-NN NEW  ARS  Trop. Images, wsp
Hypericum boreale (Britton) E.P.Bicknell 1891. H. canadense var. boreale 1895. H. boreale  (Britton) E.P.Bicknell 1895. H. mutilum var. boreale 1979. H. mutilum ssp. boreale	Northern St. Johnswort, Northern St. John's-wort	Native, Secure			NYFA-5 USDA-NN NEW Can ARS ITIS Trop. Images, wsp
Hypericum majus  (A.Gray) Britton	Large St. Johnswort, Larger Canadian St. John's-wort	Native, Secure			NYFA-5 USDA-NN ARS  Images, wsp
Hypericum gymnanthum Engelm. & A.Gray	Claspingleaf St. John's-wort, Clasping-leaved St. John's-wort	Native, Likely extirpated			NYFA-Z USDA-N0 ARS ITIS Images, wsp

Hypericum sect. Brathys

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Brathys
Hypericum sect. Brathys	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum canadense  L.	Canadian St. John's-wort, Lesser St. Johns-wort, Lesser Canadian St. Johnswort	Native, Secure			NYFA-5 USDA-NN NEW  ARS  Images, wsp
Hypericum gentianoides  (L.) Britton, Sterns & Poggenb.	Orangegrass, Orange-grass St. John's-wort, Pineweed	Native, Secure			NYFA-5 USDA-NN ARS  Images, wsp
Hypericum denticulatum  Walter	Coppery St. Johnswort, Coppery St. John's-wort	Native, Endangered, NYNHP: 1			NYFA-1 USDA-N0 ARS  Images, wsp

Hypericum sect. Brathys × Trigynobrathys

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Brathys × Trigynobrathys
Hypericum sect. Brathys × Trigynobrathys	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum × dissimulatum E.P.Bicknell (pro. sp.)   Hypericum boreale ×   Hypericum canadense 1895. Hypericum canadense    var. parvicarpum E.P.Bicknell 1913. H. dissimulatum  E.P.Bicknell	Disguised St. John's-wort	Native, Endangered			NYFA-1? USDA-NN NEW  ITIS Trop. Images, wsp

Hypericum sect. Myriandra

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Myriandra
Hypericum sect. Myriandra	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum ellipticum  Hook. 1831. H. ellipticum  Hook. 1836. Brathydium canadense  Spach 1840. H. brathydium  Steudel 1908. H. canadense var. oviforme	Pale St. Johnswort, Pale St. John's-wort, Elliptic St. John's-wort, Elliptic-leaved   St. John's-wort Millepertuis elliptique	Native, Secure, CoC: 6 WL: OBL Perennial, Herb-forb			NYFA-5 USDA-NN NEW Can ARS ITIS Trop. NSE BNA  Images, wsp
Hypericum prolificum  L. 1767. H. prolificum  L. 1836. Myriandra ledifolia  Spach 1836. M. spathulata  Spach 1836. M. prolifica  (L.) Spach 1840. H. spathulatum  (Spach) Steud. 1856. Brathys prolifica (L.) Payer	Shrubby St. Johnswort, Shrubby St. John's-wort Millepertuis prolifère	Native, Threatened, CoC: 3, NYNHP: 2 WL: FACU Perennial, Shrub, P.shade - shade			NYFA-2 USDA-NN NEW Can ARS  Trop. LBJ  Images, wsp
Hypericum adpressum Raf. ex Bart	Creeping St. John's-wort	Native, Threatened, CoC: 10, NYNHP: 2 WL: OBL Perennial, Herb-forb			NYFA-2 USDA-N ARS  Images, wsp
Hypericum densiflorum  Pursh 1813. H. densiflorum  Pursh 1856. H. prolificum var. densiflorum	Bushy St. John's-wort	Native, Endangered, CoC: 10, NYNHP: 1 WL: FACW Perennial, Shrub			NYFA-1 ARS  Trop. Images, wsp
Hypericum stragulum W.P.Adams & N.Robson 1766. H. hypericoides  (L.) Crantz (i) 1803. Ascyrum multicaule    Michx. ex Willd. 1936. A. hypericoides var. multicaule 1961. H. stragulum    W.P.Adams & N.Robson 1980. H. hypericoides ssp. multicaule	Low St. John's-wort, St. Andrew's cross, Multi-stemmed   St. John's-wort	Native, Endangered, CoC: 5, NYNHP: 1 WL: FACU Perennial, Shrub, subshrub			NYFA-1 USDA-N0 NEW  ARS  Images, wsp
Hypericum kalmianum  L.	Kalm's St. John's-wort	Native, Likely extirpated			NYFA-Z USDA-NN ARS  Images, wsp
Hypericum frondosum  Michx. 1791. H. aureum  W.Bartram (i) 1803. H. frondosum  Michx. 1901. H. splendens  Small	Cedarglade St. Johnswort, Golden St. John's-wort	Introduced, No reports, Cultivated			NYFA-0 USDA-N0 ARS ITIS Trop. NSE BNA  Images, wsp

Hypericum sect. Roscyna

Section Roscyna contains the great or giant St. John's wort (Hypericum ascyron), which is native to Asia and northeastern North America. As the New York Flora Atlas does not distinguish between subspecies of this plant, it is not clear whether there are any naturalized Asian subspecies present in New York.

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Roscyna
Hypericum sect. Roscyna	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum ascyron  L. ssp. pyramidatum (Aiton) N. Robson 1789. Hypericum pyramidatum  Aiton 1797. Hypericum amplexicaule  Lam. illeg. 1802. Hypericum ascyroides  Willd. 1803. Hypericum macrocarpum  Michx. 1813. Hypericum bartramianum  Pursh 1836. Roscyna americana  Spach 1951. Hypericum ascyron    var. americanum (Spach) Y. Kimura 2001. Hypericum ascyron    ssp. pyramidatum (Aiton) N. Robson	American great St. Johnswort, Great St. John's-wort, Giant St. John's-wort Millepertuis à grandes fleurs, Millepertuis à grande fleur, Millepertuis faux-ascyrum, Millepertuis pyramidal	Native, Rare WL: FAC Perennial, Herb-forb			NYFA-3 USDA-NN NEW Can ARS  FoC Trop. BNA  Images, wsp Note: IW
Hypericum ascyron  L. ssp. gebleri (Ledeb.) N. Robson 1831. Hypericum gebleri  Ledeb. 1831. Hypericum ascyron    var. macrosepalum Ledeb. 1836. Roscyna gebleri  (Ledeb.) Spach 1859. Hypericum ascyron    var. brevistylum Maxim. 2001. Hypericum ascyron    ssp. gebleri (Ledeb.) N. Robson	North-Asian great St. Johnswort, Siberian great St. Johnswort, Short-style great St. Johnswort Duan zhu huang hai tang	Introduced from  northern Asia, Impersistent			USDA-NN ARS  FoC Trop. Images, wsp
Hypericum ascyron  L. ssp. ascyron 1753. Hypericum ascyron  L. 1856. Roscyna japonica  Blume	Asian great St. Johnswort Millepertuis ascyron, Huang hai tang, Yuan ya zhong	Introduced from  Asia, Impersistent			USDA-NN Can ARS  FoC Trop. Images, wsp

Hypericum sect. Hypericum

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Hypericum
Hypericum sect. Hypericum	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum punctatum  Lam.      H. subpetiolatum	Spotted St. Johnswort, Spotted St. John's-wort	Native, Secure			NYFA-5 USDA-NN ARS  Images, wsp
Hypericum perforatum  L. ssp. perforatum 1753. Hypericum perforatum  L. 1763. H. officinarum  (L.) Crantz 1778. H. vulgare  (L.) Lam. 1789. H. officinale  (L.) L.Gaterau 1833. H. marylandicum  Biroli ex Colla 1877. H. perforatum var. confertiflorum 1907. H. perforatum var. microphyllum 1941. H. nachitschevanicum  Grossh.	Common St. John's-wort, Perforate St. John's-wort, Klamathweed, Goatweed, Eola-weed, Tipton's weed, Rosin-rose Millepertuis commun, Millepertuis perforé	Introduced from  Eurasia,  northern Africa, Somewhat invasive, NYIS: 47%, IO			NYFA-X USDA-XX NEW Can ARS  FoC Trop. NSE BNA  IPN  Images, wsp

Hypericum sect. Oligostema

fam. Hypericaceae – tribe Hypericeae – genus Hypericum – sect. Oligostema
Hypericum sect. Oligostema	St. John's-wort	N.Y. Status	Images	Distribution	18
Hypericum humifusum  L.	Trailing St. John's-wort	Introduced, Impersistent			NYFA-X USDA-X0 ARS  Images, wsp

Family Podostemaceae

The Podostemaceae (riverweed family) …

Subfamily Podostemoideae

Podostemaceae – subfam. Podostemoideae – genus Podostemum
Podostemum	River weed	N.Y. Status	Images	Distribution	1
Podostemum ceratophyllum  Michx.  (=) Podostemum abrotanoides	Hornleaf riverweed, Riverweed, River-moss, Threadfoot	Native, Threatened			NYFA-2 NRCS-NN ITIS Images

Family Elatinaceae

The Elatinaceae ...

Elatinaceae
Elatine	Water wort	N.Y. Status	Images	Distribution	3
Elatine minima (Nutt.) Fisch. & C.A.Mey.	Small water-wort	Native, Likely secure			NYFA-4 USDA-NN NEW  Images, wsp
Elatine americana  (Pursh) Arn.	American water-wort	Native, Endangered			NYFA-1 USDA-N0 NEW  Images, wsp
Elatine triandra  Schkuhr	Threestamen waterwort, Three-stamened waterwort	Introduced			NYFA-X USDA-NN NEW  Images, wsp