Coulter's Lyrepod [Lyrocarpa coulteri Hook. & Harv. var. palmeri (Wats.) Roll.]

Coulter's Lyrepod [Lyrocarpa coulteri Hook. & Harv. var. palmeri (Wats.) Roll.]

Listing CNPS List 4 R-E-D Code 1-1-1

State/Federal. Status -- None BRASSICACEAE Dec.-Apr.

Global Rank G?T3? State Rank S?

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

Habitat: Sonoran Desert Scrub, particularly in gravelly soil and among boulders, is the preferred habitat of this suffrutescent biennial. Shrub vegetation is generally open in the vicinity of Coulter's Lyre-Pod.

Known Sites: This species is scattered, but never common, in a number of desert canyons. It was seen just east of the Narrows along the foot of the slopes on the south side of Highway 78. Herbarium specimens examined were from the Tierra Blanca Mountains, 2 miles west of the Vallecito Stage Station, near the summit of Yaqui Pass, below the lower mouth of Sentenac Canyon, and in Borrego Valley. Old reports are from Pinyon Wash, at the Narrows Earth Trail, Culp Canyon, northeast of Yaqui Meadows, in Olla Wash, Redrock Canyon, Barrett Canyon, Powderhouse Canyon, and Sandstone Canyon. This shrub is reported by Felger on Tiburon Island and Datil Island in the Gulf of California.

Twenty-three specimens from Baja California are found in the herbarium of the San Diego Natural History Museum; south to 28 43' North where collected by Moran (SD 60541) on rocky slopes near San Juan Mine.

Status: Given the limited development in Anza-Borrego State Park and this species' preference for boulder strewn areas and rocky slopes, the San Diego County populations of Coulter's Lyrepod are considered stable. Substantial portions of all sizeable populations should be protected. This species is relatively inconspicuous and easily overlooked when not in flower.


Copyright May 1994 Craig H. Reiser.

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