Eucnide rupestris

(Baillon) H. J. Thompson & W. R. Ernst

J. Arnold Arbor. 48: 86. 1967.

Basionym: Loasella rupestris Baillon Bull. Mens. Soc. Linn. Paris 1: 650. 1887
Synonyms: Sympetaleia rupestris (Baillon) A. Gray ex S. Watson
Treatment appears in FNA Volume 12. Treatment on page 496. Mentioned on page 494.

Herbs, annual, spindle-shaped (often nearly as wide as tall). Leaves: blade slightly lobed. Pedicels (fruiting) to 2 cm, usually nodding. Flowers radially symmetric; corolla essentially tubular, petals connate 9 mm, 2-colored, yellow to brown basally, green distally, ovate, to 15 mm; stamens 15, inserted in upper portion of corolla tube, included, projecting toward style; filaments to 5 mm, shorter than anthers. 2n = 42.

Phenology: Flowering Mar–May.
Habitat: Rocky slopes, washes.
Elevation: 10–500 m.


V12 52-distribution-map.jpg

Ariz., Calif., Mexico (Baja California, Sinaloa, Sonora).


Eucnide rupestris is endemic to the Sonoran Desert.

Selected References


Lower Taxa