OBI - Robert F. Hoover Herbarium, Cal Poly State University
Catalog #: OBI156619
Occurrence ID (GUID): d495e4db-8023-4c1e-b6df-6a4a49c29f92
Secondary Catalog #: 72396
Taxon: Elymus caput-medusae L.
Family: Poaceae
Show Determination History
Collector: J. Clark & J. Olson      
Date: 1999-07-01
Verbatim Date: 1-Jul-99
Locality: United States, California, San Luis Obispo, Camp Roberts. Within and along vernal pool exclosure between Avery Rd (N) tank trl (S) and Bivouac Rd (W). UTMs (NAD27) zone 10S, 697220E, 3960720N
Elevation: 198 meters (649ft)
Habitat: Vernal pool grasslands; loam/sandy loam complex. Assoc: Nassella pulchra, Deschampsia danthonioides, Avena barbata, Avena fatua, Vulpia microstachys, Vulpia myuros, Bromus hordeaceus, Agoseris grandiflora, Juncus bufonius
Description: Rapidly spreading noxious alien; shallow-rooted annual, decumbent to ascending, 2-6 dm tall; infl spike-like, dense; spikelets 2 ranked, 2 per node; axis breaking above glumes; glumes awl-awn like, firm; lemma lanceolate, 5-8 mm long, awn 3-7 cm >>lemma body
Specimen Images
Record ID: cdb74b90-f04d-4fb7-99a2-f08918ad3274
For additional information on this specimen, please contact: Jenn Yost, Director and Associate Professor (
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