Host an Event Volunteer Join Tickets

Support the plant database you love!


Wildflower Center Seed Bank

The Wildflower Center's Seed Bank was established in partnership with the Bureau of Land Management's (BLM) Seeds of Success (SOS) program in concert with the Royal Botanic Gardens, Kew Millennium Seed Bank Program (MSBP). The purpose of the Seed Bank is to collect, conserve, and develop native plant materials for stabilizing, rehabilitating and restoring lands in Texas and the United States.

Search Seed Bank
Show All Accessions

To request seed from the Wildflower Seed Bank, please contact the Seed Bank Curator.


Asclepias asperula

Asclepias asperula (Decne.) Woodson

Antelope-horns, Spider Milkweed, Green-flowered Milkweed, Spider Antelope-horns, Antelope Horns

Asclepiadaceae (Milkweed Family)

Accession Data

Accession Number: LBJWC-1712

Field Data Form: LBJWC-1712.pdf
Collection Date: 2015-05-15
Accession Number: LBJWC-1712
Organization: LBJWC
Collector(s): Lady Bird Johnson Wildflower Center
Collected with: L. Brick

Location Data

Country: USA
Phytoregion: 30
Phytoregion_full: Edwards Plateau
State: TX
County: Hays
Municipality: Dripping Springs
Geog_area: Colorado River Basin; Barton Creek Watershed
Location: 1015 Sunset Canyon Drive South

Latitude: 30.191998
Longitude: -98.018389
Altitude: 1225 ft
land_owner: Rod and Lynda Brick

Habitat Data

Associated Taxa: Lupinus texensis, Indigofera miniata, Linum rupestre, Centaurium sp., Verbena sp., Ratibida columnifera, Gaillardia pulchella, Mahonia trifoliolata, Lantana horrida
Modifying Factors: None
Land Form: Ridge
Land Use: Residential
Slope: 5
Aspect: NA
Geology: Limestone
Soil Texture: Gravelly clay loam

Collection Data

Plants Sampled: 32
Population Size: 32
Area Sampled: 1
Area Unit: acre
Seed From: Plants
Habit: Forb
Height: 1 ft
Use: Seed increase to promote monatch conservation

Inventory Data

Other: 2737 seeds
Return to List