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File:H20140611-2884—Asclepias eriocarpa—RPBG (14445162271).jpg

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Summary

Description Asclepias eriocarpa— woolly-pod milkweed. A favorite larval food of monarch butterflies (Danaus plexippus). The mild toxins contained in the plant makes the monarchs unpalatable to birds. Americans have had a love-hate relationship with milkweeds for generations. At one time, all milkweeds were considered poisonous to livestock, especially sheep, and efforts were made to rid the nation of the scourge, Then, during World War II, little boys like me collected the pods as a replacement for the unavailable kapok for life vests. After the war the belief in poisons returned, then it was discovered as important to the survival of monarchs. The current thinking is that milkweed are a mild toxin generally avoided by livestock. The monarch populations are crashing for several reasons so a concerted effort is made to plant milkweeds all along their migatory route. Photographed at Regiona Parks Botanic Garden located in Tilden Regional Park near Berkeley, CA.
Date
Source H20140611-2884—Asclepias eriocarpa—RPBG
Author John Rusk from Berkeley, CA, United States of America
Camera location37° 53′ 40.28″ N, 122° 14′ 38.25″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by John Rusk at https://flickr.com/photos/12303842@N00/14445162271. It was reviewed on 25 May 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

25 May 2017

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11 June 2014

37°53'40.279"N, 122°14'38.252"W

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Date/TimeThumbnailDimensionsUserComment
current15:40, 25 May 2017Thumbnail for version as of 15:40, 25 May 20173,325 × 3,325 (2.65 MB)Josve05aTransferred from Flickr via Flickr2Commons

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