Slender-leaved Ipomopsis [Ipomopsis tenuifolia (Gray) V. Grant]

Slender-leaved Ipomopsis [Ipomopsis tenuifolia (Gray) V. Grant]

Listing CNPS List 2 R-E-D Code 2-1-1

State/Federal. Status -- None POLEMONIACEAE Mar.-May

Global Rank G? State Rank S?

Distribution: San Diego County, Imperial County; Baja California, Mexico

Habitat: Pinyon Juniper Woodland or at higher elevations Sonoran Desert Scrub are the preferred habitat for this showy subshrub with bright red flowers. Near Jacumba this species is associated with large boulders and soils mapped as Acid Igneous rock lands. Surrounding vegetation is relatively open and conditions are quite xeric; the Slender Leaved Ipomopsis may grow from rocky crevices among the boulders.

Known Sites: This shrub was seen in limited numbers growing in rocks at Carrizo Gorge. All reported county sites for this striking and quite rare species are nearby. It is also scattered on the grade into Smuggler's Cave, east of Jacumba.

Fifty-two specimens are found from Baja at the San Diego Herbarium for this widely distributed shrub. It has been collected as far south as 29 19' at Cerro San Luis by Moran (SD 54543).

Status: San Diego County populations of Slender-leaved Ipomopsis are apparently stable, given the minor historical impacts within the granitic mountains near Dubber and the Carrizo Gorge. Given the limited distribution in the United State of this species, all populations should be protected.

Copyright May 1994 Craig H. Reiser.

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