San Diego State University Herbarium
Catalog #: 19406
Secondary Catalog #: SDSU19406
Taxon: Euphorbia melanadenia Torr. & A. Gray
Family: Euphorbiaceae
Determiner: Alice F. Hossfeld (2019-09-10)
ID References: Based on Jepson eFlora
Show Determination History
Collector: Rebman, Jon P.; Mike Simpson and Mike Mayer   17604   
Date: 2009-05-12
Verbatim Date: 05/12/2009
Locality: United States, California, San Diego, Anza Borrego Desert State Park: vicinity of Whale Peak; south of Pinyon Mountain Valley Road and northwest of the highest point of Whale Peak
33.03833  -116.3342
Verbatim Coordinates: 33.04° N; 116.33° W
Elevation: 1475 meters
Verbatim Elevation: 4839ft.
Habitat: Pinyon/Juniper Woodland with Juniperus californica, Pinus monophylla, Quercus cornelius-mulleri, Yucca schidigera, Cylindropuntia ganderi, Eriogonum fasciculatum var. polifolium, Nolina parryi, and Bernardia myrcifolia; granitic substrates
Reproductive Condition: In flower and fruit.
Occurrence Remarks: Herbaceous perennial; rare
Specimen Images
Link to Source: SDSU #19406
Record Id: 3f5ee879-3ac5-4b0e-a6ea-c613e71a5abd
Occurrence ID (GUID): c752dc8e-57e2-4e57-8090-c45520c8c252
For additional information on this occurrence, please contact: Michael Simpson, Curator (
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