Calystegia occidentalis subsp. occidentalis
WeedyEndemic
Synonyms: Calystegia malacophylla subsp. tomentella (Greene) Munz C. occidentalis var. tomentella (Greene) Brummitt C. polymorpha (Greene) Munz Convolvulus occidentalis subsp. fruticetorum (Greene) Abrams C. polymorphus Greene C. tomentellus Greene
Treatment appears in FNA Volume 14.
Peduncles (1–)2–4-flowered. Bracts (1–)3–7 mm distant from sepals, usually linear to linear-elliptic or linear-oblong, sometimes oblanceolate, 4–13(–18) × 1–4(–5) mm, margins entire.
Phenology: Flowering (Apr–)May–Aug(–Sep).
Habitat: Dry slopes, grassy, shrubby, rocky sites, conifer forests.
Elevation: (10–)30–1200(–1900) m.
Discussion
Plants with tomentellous to ± villous herbage from northern and southern Sierra Nevada, Greenhorn Mountains, and Mt. Pinos included here in subsp. occidentalis have been called Calystegia occidentalis var. tomentella, Convolvulus tomentellus, or Calystegia malacophylla subsp. tomentella.
Selected References
None.
Lower Taxa
None.