University of Texas Herbarium
Catalog #: TEX00322560
Taxon: Senecio riddellii Torr. & Gray
Family: Asteraceae
Determiner: B. L. Turner
Collector: W. R. Carr   19618   
Date: 25 April 2001
Locality: United States, Texas, Presidio, In impacted pasture area in bottom of broad shallow draw between rocky igneous slopes, ca. 500-1000 ft. NE of houses along road leading N from houses, at point N30¡22.038', W104¡06.200' +/- 17.3 ft., ca. 6 mi. NW of jct. US 90 and RM 2810 at Marfa. Hip-O Ranch Preserve. Marfa Quadrangle. Elev. 4960 ft.
30.367722  -104.105556
Verbatim Coordinates: 30d 22m 3.8s N; 104d 6m 20s
Habitat and Description: Rare in impacted pasture area on fine textured tight soils in bottom of shallow draw between rocky igneous slopes. Associates include Allinonia incarnata, Astragalus mollissimus var. marcidus, A. wootonii, Baileya multiradiata, Bouteloua sp., Calylophus hartwegii, Chaetopappa ericoides, Croton pottsii, Cryptantha sp., Gaura coccinea, Glandularia sp., Lesquerella fendleri, Machaeranthera spp., Oenothera albicaulis, Sphaeralcea angustifolia, Thelesperma ambiguum.
Specimen Images
Record Id: f9c0d0a5-ae6a-4770-a6ac-54d70bd3d155
For additional information on this specimen, please contact: George Yatskievych (
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