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(First upload on November 16 2021. Last on August 29 2022) [ 日本語 | English ]

Asclepias L. (トウワタ) O-towata (オオトウワタ, cardiac glycosides), common milkweed, butterfly flower, silky swallow-wort, and Virginia silkweed Lifeform: clonal perennial forb, developing rhizomes Distribution: southern Canada and the United States (east of the Rocky Mountains, excluding dry prairies) Habitat: sandy soils

Chemical components: white latex containing cardiac glycosides, nicotines, etc.

Asclepias syriaca trasplanted in Hokkaido

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[1-6] in Experimental Station for Medical Plant Studies, Faculty of Medicine, Hokkaido University. [1-4] on September 8 2021. [5/6] on August 25 2022.