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Asclepias amplexicaulis
Species of flowering plant From Wikipedia, the free encyclopedia
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Asclepias amplexicaulis, the blunt-leaved milkweed, clasping milkweed, or sand milkweed, is a species of flowering plant in the subfamily Asclepiadoideae (Apocynaceae).[1][2] It is endemic to the United States, where it is mostly found east of the Great Plains.[3] It grows in dry prairies, savannas, open woods, and fallow fields, usually in sandy soil.[2][4][5]
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Description
It grows 1–3 ft (0.30–0.91 m) high and produces flowers in the summer.[4]
The leaves of A. amplexicaulis are ovate to ovate-elliptic in shape, opposite, and most commonly found in pairs of 4 to 6.[6] They are approximately 8 to 15 centimeters long and 4 to 8 centimeters wide.[6] A. amplexicaulis' root system can reach between 45 and 60 centimeters in length and is relatively unbranched, with few lateral roots.[7]
This plant was eaten as food historically. However, it contains a poison dangerous to humans and livestock, so caution must be used if ingesting this plant.[8]
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Ecology
Phenology
A. amplexicaulis flowers from spring to summer; flowering as early as April has been observed, with peak inflorescence occurring in May.[9]
Fire Ecology
A. amplexicaulis occurs in ecosystems prone to burning, such as longleaf pine flatwoods, and has been found to persist through repeated prescribed burns.[10][11]
In flower at Nachusa Grasslands in Illinois
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References
External links
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