California Kallstroemia [Kallstroemia californica (Watson) Vail]

California Kallstroemia [Kallstroemia californica (Watson) Vail]

Listing CNPS Unlisted R-E-D Code None

State/Federal. Status -- None ZYGOPHYLLACEAE Aug.-Oct.

Global Rank None State Rank None

Distribution: San Diego County, Imperial County, Riverside County, San Bernardino County; Arizona; Texas; Sonora and Sinaloa, Mexico

Known Sites: This small annual herb was observed in San Diego County in the early 1980's near the highway east of Banner growing in Pinyon/Juniper Woodland. Only a few plants were seen at a mildly disturbed locale. This small population may have been recently introduced either by cattle brought into the area or by motorcoach/car. A herbarium specimen is from east of June Wash in the Anza-Borrego Desert; a second specimen is from Mt. Signal in Imperial County near the U.S./Mexico border. Other herbarium specimens are from Arizona at Organ Pipe Cactus National Monument, near Yuma, Sulphur Springs Valley, and near Douglas.

Nine specimens are found at the herbarium of the San Diego Museum of Natural History from Baja California south to 28 4' North where collected by Hastings and Turner (SD 92269); two are from Sonora and one specimen is from Sinaloa.

Status: Populations in California deserts are presumed rare but stable. California Kallstroemia is something of a taxonomic misnomer as most of its population apparently occurs east and south of California. Given its rarity in the state, it is recommended that all apparently naturally occurring populations be protected in California.

Copyright May 1994 Craig H. Reiser.

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