Physaria kingii subsp. latifolia
Novon 12: 325. 2002.
Basionym: Lesquerella latifolia A. Nelson Bot. Gaz. 42: 49. 1906
Synonyms: Lesquerella barnebyi Maguire Lesquerella kingii subsp. latifolia (A. Nelson) Rollins & E. A. Shaw Lesquerella kingii var. parvifolia (Maguire & A. H. Holmgren) S. L. Welsh & Reveal Lesquerella occidentalis var. parvifolia Maguire & A. H. Holmgren Lesquerella wardii (S. Watson) O’Kane & Al-Shehbaz Physaria wardii
Plants prostrate, decumbent, or erect; trichomes with large tubercles throughout, ± flat across middle. Basal leaves: blade margins entire. Racemes not or somewhat secund, usually dense and compact, sometimes slightly elongated in fruit. Fruiting pedicels usually sigmoid. Petals usually yellow, sometimes cream-yellow, cream-white, or white. Fruits as wide as or longer than wide, apex rounded-acute; valves glabrous inside; septum complete; ovules 8–16 per ovary; style to 7 mm.
Phenology: Flowering May–Jun.
Habitat: Gravelly loam soils, rocky basaltic slopes, limestone outcrops, ridges and flats, canyon bottoms, open pinyon-juniper woodlands
Elevation: 2000-2500 m
Distribution
Ariz., Calif., Nev., Utah, Mexico (Baja California).
Discussion
Populations of subsp. latifolia with flowers cream-yellow, cream-white, or white are frequently encountered on the Kaibab Plateau of northern Arizona.
Selected References
None.
Lower Taxa
None.