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.
To request seed from the Wildflower Seed Bank, please contact the Seed Bank Curator.
Ambrosia trifida L. var. texana Scheele
Texan Great Ragweed, Giant RagweedAsteraceae (Aster Family)
USDA Symbol: AMTRT
Accession Number: LBJWC-MM-707Field Data Form:
Collection Date: 2009-11-16
Accession Number: LBJWC-MM-707
Collection Number: MM-707
Collector(s): Lady Bird Johnson Wildflower Center
Collected with: Marr, M.
Location DataCountry: US
Location: Riparian corridor along the Blanco River between File Mile Dam and Post Road; accessed from Randall W. Vetter Park which is located on Old Stagecoach Road between San Marcos and Kyle. Latitude: 29.937880
Georeference Source: GPS
GPS Datum: WGS84 Altitude: 580 FT
Elevation in M: 176
Habitat DataAssociated Taxa: Platanus occidentalis, Acer negundo, Cephalanthus occidentalis, Sesbania herbacea, Panicum virgatum
Soil Texture: Gravelly loam, gray
Collection DataPlants Sampled: 150 plants sampled.
Population Size: 500
Specimen Notes: Marr, M. - LBJWC:In field:12/18/2005