[The Dogbane Family in the Cascade Mountains of Oregon and Washington]

Milkweeds of the Cascade Mountains of Oregon and Washington

The Genus Asclepius

Heartleaf Milkweed, Purple Milkweed: Asclepias cordifolia (Synonym: Gomphocarpus cordifolius)

Purple milkweed (Asclepias codifolia) as seen along Forest Service Road 4201, Siskiyou National Forest............July 15, 2012.

Heartleaf Milkweed, Purple Milkweed: Asclepias cordifolia -

Mexican Whorled Milkweed, Narrowleaf Milkweed, Narrow-leaf Milkweed, Narrow-leaved Milkweed: Asclepias fascicularis (Synonym: Asclepias mexicana) -

Showy Milkweed, Greek Milkweed: Asclepias speciosa (Synonym: Asclepias giffordii) -

Other Members of the Apocynaceae in the Cascade Mountains of Oregon and Washington

Paul Slichter E-mail