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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.


Cirsium horridulum

Cirsium horridulum Michx.

Bristle Thistle, Yellow Thistle, Horrid Thistle, Purple Thistle, Spiny Thistle, Bull Thistle

Asteraceae (Aster Family)
USDA Symbol: CIHO2

Accession Data

Accession Number: LBJWC-1161

Field Data Form: LBJWC-1161.pdf
Collection Date: 2008-04-29
Accession Number: LBJWC-1161
Collection Number: 1161
Organization: LBJWC
Collector(s): Lady Bird Johnson Wildflower Center
Collected with: Salmon, R.

Location Data

Country: US
Phytoregion: 35E
Phytoregion_full: South Central Plains
State: Texas
County: Harrison
Municipality: Crossroads
Location: Intersection of Texas Highway 31 and County Road 2625

Latitude: 32.449000
Longitude: -94.236880
Georeference Source: GPS
GPS Datum: WGS84

land_owner: Texas Department of Transportation

Habitat Data

Associated Taxa: Trifolium campestre, Rubus sp., Toxicodendron radicans, Tradescantia occidentalis, Briza minor, Triodanis perfoliata, Paspalum notatum, Lolium perenne, Salvia lyrata, Verbena halei
Aspect: All
Geology: Wicox & Midway Groups
Soil Texture: Sandy clay (5YR 4/6)

Collection Data

Plants Sampled: 100 plants sampled.
Population Size: 300
Specimen Notes: Salmon, R. :In field:9 APR 09

Inventory Data

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