University of Texas Herbarium
Catalog #: TEX00454698
Taxon: Ambrosia trifida L.
Family: Asteraceae
Determiner: W. R. Carr, 2002; ! B. L. Turner, 2011
Collector: W. R. Carr   21197   
Date: 2002-08-07
Locality: United States, Texas, BEXAR, Ca. 1000-2200 ft. SSE of Military Dr. bridge. San Antonio Missions NHP; along NE bank of old channel of San Antonio River upstream and downstream from old Espada Dam in Espada Park, W side of new channel of San Antonio River. [Flora of San Antonio Missions NHP.]. Elev. 530 ft.
29.346389  -98.465556
Verbatim Coordinates: 29d 20m 47s N; 98d 27m 56s
Habitat: Common in full sun and in partial shade of hackberry-willow riparian woodland. Associates in wetland area include Acmella oppositifolia, Alternanthera philoxeroides, Ambrosia trifida, Ampelopsis arborea, Boehmeria cylindrica, Campsis radicans, Colocasia esculenta, Eichhornia crassipes, Hydrocotyle verticillata, Iva annua, Mikania scandens, Melia azedarach, Schoenoplectus tabernaemontani, Typha sp., Zizaniopsis miliacea. NPS accession no. SAAN-00304, NPS catalog no. 20039.
Reproductive Condition: flowering + fruiting=mid
Specimen Images
Record Id: 034a0c37-90d6-43fa-9acb-a3a03b003a10
For additional information on this specimen, please contact: George Yatskievych (
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