Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
Manual of the Southeastern Flora (Small, 1933)
Green Antelope-horn, Spider Milkweed, Green Milkweed
To see larger pictures, click or hover over the thumbnails.
Richard and Teresa Ware rtw_asclepias_viridis_1
Leaves oblong to lance-oblong or elliptic, rounded at base, short-stalked, per Wildflowers of Tennessee.
Richard and Teresa Ware rtw_asclepias_viridis_1b
The petals are green and spreading (not reflexed); the hood is purple, per All About South Carolina Wildflowers.
Richard and Teresa Ware rtw_asclepias_viridis_4
Note the upright petals, unique among the milkweeds, per Wildflowers in the Field and Forest.