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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.

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


Silphium radula

Silphium radula Nutt.

Roughstem Rosinweed

Asteraceae (Aster Family)
USDA Symbol: SIRA2

Accession Data

Accession Number: LBJWC-TS-3

Field Data Form:
Collection Date: 2009-07-02
Accession Number: LBJWC-TS-3
Collection Number: TS-3
Organization: LBJWC
Collector(s): Lady Bird Johnson Wildflower Center
Collected with: Siegenthaler, T., Eason, M., Pfiel, B., Marr, M.

Location Data

Country: US
State: Texas
County: Travis
Municipality: Austin
Geog_area: Barton Creek
Location: Shield Ranch, 16037 Hamilton Pool Road

Latitude: 30.433760
Longitude: -97.983330
Georeference Source: GPS
GPS Datum: WGS84

Altitude: 858 FT
Elevation in M: 261

Habitat Data

Associated Taxa: Platanus occidentalis, Carya illinoinensis, Cephalanthus occidentalis, Schizachyrium scoparium, Sorghastrum nutans
Slope: > 45
Aspect: Varies
Geology: Limestone
Soil Texture: Loam, dark gray

Collection Data

Plants Sampled: 50 plants sampled.
Population Size: 50

Inventory Data

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