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Because of this, it is most often suggested to grow milkweeds that are native to the geographical area they are planted in to prevent negative impacts on monarch butterflies. [25] [26] Monarch caterpillars do not favor butterfly weed (A. tuberosa), perhaps because the leaves of that milkweed species contain very little cardenolide. [27]
Like several other species of milkweed, A. asperula is a food for monarch butterfly caterpillars. Along with being food for monarchs, the plants also contain toxic cardiac glycosides (cardenolides) that the monarchs retain, making them unpalatable and poisonous to predators.
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]
Breeding monarchs prefer to lay eggs on A. incarnata. [20] The species is therefore often planted in butterfly gardens and "Monarch Waystations" to help sustain monarch butterfly populations. [21] However, A. incarnata is an early successional plant that usually grows at the margins of wetlands and in seasonally flooded areas. [22]
A. tuberosa is a larval food plant of the queen and monarch butterflies, as well as the dogbane tiger moth, milkweed tussock moth, and the unexpected cycnia. [3] [12] Because of its rough leaves and trichomes, it is not a preferred host plant of the monarch butterfly but caterpillars can be reared on it successfully.
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]
Monarch Watch provides information on rearing monarchs and their host plants. [8] Efforts to restore falling monarch butterfly populations by establishing butterfly gardens and monarch migratory "waystations" require particular attention to the target species' food preferences and population cycles, as well to the conditions needed to propagate ...
Asclepias subulata is a species of milkweed known commonly as the rush milkweed, desert milkweed [1] or ajamete.This is an erect perennial herb which loses its leaves early in the season and stands as a cluster of naked stalks.