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Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. [2] [3] It is native to southern Canada and much of the United States east of the Rocky Mountains, excluding the drier parts of the prairies. [4]
A monarch butterfly on swamp milkweed Asclepias syriaca seed pods, upper image from August and lower from December Milkweed sprout, a few days after sowing Chemical structure of oleandrin, one of the cardiac glycosides. Members of the genus produce some of the most complex flowers in the plant kingdom, comparable to orchids in complexity.
Asclepias speciosa is a specific monarch butterfly food and habitat plant. Additionally, phenylacetaldehyde produced by the plants attracts Synanthedon myopaeformis, the red-belted clearwing moth. [7] It is also a larval host for the dogbane tiger moth and the queen butterfly. [8]
Both the milkweed tussock and the monarch caterpillars eat the cardiac glycoside-laden milky sap of milkweed and have evolved mechanisms to retain those toxins in their bodies after metamorphosing ...
Euchaetes egle, the milkweed tiger moth or milkweed tussock moth, is a moth in the family Erebidae and the tribe Arctiini, the tiger moths. The species was first described by Dru Drury in 1773. It is a common mid- through late summer feeder on milkweeds and dogbane .
Milkweed contains toxic compounds, cardenolides, which are often consumed and stored by many butterflies. Because of their emetic properties, the plain tiger is unpalatable to most predators. As a result, its colouration is widely mimicked by other species of butterflies .
Growing milkweed from seed is one of the easiest ways to help declining monarch butterflies. In December 2024, the U.S. Fish and Wildlife Service proposed monarch butterflies, whose numbers in the ...
Providing monarchs with enough milkweed and nectar plants, even in small areas, can help put them on the road to recovery. Working together, we can help make this extraordinary species a legacy ...