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 viridis

Asclepias viridis Walter

Green Milkweed, Spider Milkweed

Asclepiadaceae (Milkweed Family)
USDA Symbol: ASVI2

Accession Data

Accession Number: LBJWC-1723

Field Data Form: LBJWC-1723.pdf
Collection Date: 2015-06-14
Accession Number: LBJWC-1723
Organization: LBJWC
Collector(s): Lady Bird Johnson Wildflower Center
Collected with: C. Sweeney, R. Kuehl, K. Clary, T. Leblanc, M. Marr

Location Data

Country: USA
Phytoregion: 32
Phytoregion_full: Texas Blackland Prairies
State: TX
County: McLennan
Municipality: Mart
Geog_area: Brazos River Basin, Tehuacana Creek Watershed
Latitude: 31.530500
Longitude: -96.903333
Altitude: 584 ft
land_owner: R. Kuehl

Habitat Data

Associated Taxa: Lupinus texensis, Castilleja indivisa, Callirhoe involucrata, Engelmannia peristenia, Salvia farinacea, Sabtia campestris, Linum rigidulum, Nassella leucotricha, Aristida spp.
Modifying Factors: Grazed
Land Form: Stream terrace
Land Use: Pasture
Slope: 5
Aspect: varies
Geology: Clayey alluvium
Soil Texture: Clay loam
Soil Color: Not recorded

Collection Data

Plants Sampled: 70
Population Size: 500+
Area Sampled: 140
Area Unit: acres
Seed From: Plants
Habit: Forb
Height: 2 ft
Use: Seed increase to promote monarch conservation

Inventory Data

NCGRP: 500 seeds
LBJWC: 500 seeds
Other: 8876 seeds
Return to List