Date: July 21, 2013. Location: Rochester prairie (map)
| Classification Hierarchy | |
| Kingdom | Plantae |
| Clade | Tracheophytes |
| Clade | Angiosperms |
| Clade | Eudicots |
| Clade | Asterids |
| Clade | Gentianales |
| Family | Apocynaceae |
| Subfamily | Asclepiadoideae |
| Tribe | Asclepiadeae |
| Genus | Asclepias |
| Species | Asclepias_verticillata |
Date: July 21, 2013. Location: Rochester prairie (map)
Scientific Name: Asclepias verticillata (In Greek mythology Asclepius was the god of healing. verticillata = whorled)
Common Name: Whorled milkweed
Origin: Native; perennial
Notes: This is a small milkweed which at maturity is usually less than 2 feet tall—often they are about knee high. They are found in prairies, roadsides and woods usually in dry sandy soils.
Additional references: 1, 2, 3, 4, 5, 6, 6, 8, 9, 10, 11, 12.
Flowers: July; small white flowers (about 6 mm long), occasionally purple tinted, horns slightly flattened and longer than hoods; fruit is a narrow follicle (pod); each seed with a tuft of silky hairs (the coma) which aids in wind dispersal
Leaves: long, slender, pointed, and stalkless blades arraigned in whorls on the upright stem
Glossaries of botanical terms: 1, 2, 3, 4, 5, 6, 7.
