Johnstonella albida (Kunth) M. E. Mabry & M. G. Simpson
Boraginaceae
Carr, William R. (2022)
William R. Carr|Pat McNeal
10952
1991-03-02
1991-3-2
United States, Texas, Presidio, 1000 ft. NE of St. Rt. 170, 2.9 mi. NW of Fresno Canyon bridge, E of Madera Canyon. Big Bend Ranch SNA. Santana Mesa Quad.
29.45222 -103.89111
Corolla white, 2 mm. wide at apex; rare in shallow soil on dry rocky E-facing slope underlain by Chisos Formation limestone-like conglomerate (lower slope) and Tule Mt. trachyandesite porphyry (upper slope), in creosote-lechuguilla desert succulent community. Common woody plants include: (see 5 spp. listed on Herbarium sheet). Herbaceous associates include: (see 10 spp. listed on Herbarium sheet).