Knowra Asclepias Asclepias Asclepias is a genus of flowering plants in the dogbane family, native mainly to the Americas. Its species produce milky latex and distinctive flower clusters that support specialized pollination.
Apocynaceae : A family of flowering plants that includes milkweeds, dogbanes, and many tropical trees and vines. Asclepias belongs to this family, whose classification now includes the former milkweed family.
Milkweed–monarch interaction : The ecological relationship in which monarch caterpillars feed on milkweeds and sequester their defensive compounds. This interaction makes Asclepias a host genus central to monarch development and defense.
Asclepias tuberosa : A North American milkweed with orange flowers, commonly called butterfly weed. Its showy blooms and comparatively low latex make it a popular garden milkweed.
Dogbane : Common name for plants in Apocynum, a genus of the dogbane family with milky sap and small flowers. Dogbanes resemble milkweeds in sap and family ties but lack their distinctive flower structure.
Monarch butterfly decline : The long-term reduction in monarch butterfly populations, especially in North America. Loss and fragmentation of milkweed-rich breeding habitat are among the proposed contributors.
Pollinium : A coherent mass of pollen grains transferred as a unit during pollination. Milkweed flowers package pollen into pollinia that attach to visiting insects.
Cardenolide : A steroidal compound that inhibits the sodium-potassium pump and can be toxic to animals. Many milkweeds use cardenolides in latex as defenses against herbivores.
Asclepias syriaca : A tall eastern North American milkweed with broad leaves and clusters of pinkish flowers. Common milkweed is a familiar host plant in fields and monarch habitat projects.
Gomphocarpus physocarpus : An African milkweed relative cultivated for its inflated, bristly seed pods. Its common name, balloon plant, can obscure that it is not an Asclepias species.
Milkweed toxicity : The harmful effects of milkweed compounds on animals, which vary by species and exposure. Planting decisions must account for livestock exposure as well as benefits to wildlife.
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