Smooth milkweed. Asclepias syriaca. Asclepiadaceae.
Ва́точник сирийский, или Эскулапова трава, или Млечная трава, или Ласточкина трава (лат. Asclepias syriaca) — многолетнее травянистое растение; типовой вид рода Ваточник.
Warning: Poisonous parts include milky sap from leaves, stems. Toxic only in large quantities.
The Common Milkweed is the plant that most people associate with the word “milkweed”. This is a tall and conspicuous species that sometimes forms large clones. The umbels bear large balls of pink to purplish flowers that have an attractive odor. This species is known to form hybrids with both A. exaltata (in the east) and A. speciosa (in the west). Follicles split open in the fall and early winter dispensing wind borne seeds. Among the milkweeds, this species is the best at colonizing in disturbed sites. Within its range it can be found in a broad array of habitats from croplands, to pastures, roadsides, ditches and old fields. It is surprisingly rare in prairies in the Midwest being found mostly in disturbed sites within these habitats. As an indigenous species of the southern Great Plains, it has all the attributes of what some ecologists call a “fugitive species”. That is, one whose appearance and persistence is dependent on disturbance due to its inability to compete with other vegetation. In the northern parts of its range it seems to be a more permanent member of the floral communities.
The plant contains cardiac glycosides, allied to digitalins used in treating some heart disease. These glycosides, when absorbed by monarch butterfly larvae whose sole source of food is milkweed foliage, make the larvae and adult butterflies toxic to birds and other predators.
Smooth milkweed. Asclepias syriaca. Asclepiadaceae.
Ва́точник сирийский, или Эскулапова трава, или Млечная трава, или Ласточкина трава (лат. Asclepias syriaca) — многолетнее травянистое растение; типовой вид рода Ваточник.
Warning: Poisonous parts include milky sap from leaves, stems. Toxic only in large quantities.
The Common Milkweed is the plant that most people associate with the word “milkweed”. This is a tall and conspicuous species that sometimes forms large clones. The umbels bear large balls of pink to purplish flowers that have an attractive odor. This species is known to form hybrids with both A. exaltata (in the east) and A. speciosa (in the west). Follicles split open in the fall and early winter dispensing wind borne seeds. Among the milkweeds, this species is the best at colonizing in disturbed sites. Within its range it can be found in a broad array of habitats from croplands, to pastures, roadsides, ditches and old fields. It is surprisingly rare in prairies in the Midwest being found mostly in disturbed sites within these habitats. As an indigenous species of the southern Great Plains, it has all the attributes of what some ecologists call a “fugitive species”. That is, one whose appearance and persistence is dependent on disturbance due to its inability to compete with other vegetation. In the northern parts of its range it seems to be a more permanent member of the floral communities.
The plant contains cardiac glycosides, allied to digitalins used in treating some heart disease. These glycosides, when absorbed by monarch butterfly larvae whose sole source of food is milkweed foliage, make the larvae and adult butterflies toxic to birds and other predators.