Calystegia stebbinsii
Kew Bull. 29: 499, fig. 1. 1974.
EndemicConservation concern
Treatment appears in FNA Volume 14.
Perennials, underground stems ± woody. Herbage hairy, hairs appressed or spreading, whitish. Stems trailing or twining-climbing, to 100 cm. Leaves: blade palmately 7–9-lobed, lobes linear to linear-oblong, to 55 × 6 mm, base ± truncate. Bracts to 18 mm distant from sepals, margins palmately 3–7(–9)-lobed, lobes to 18 × 3 mm. Flowers: sepals 7–11 mm, basally glabrous or hairy; corolla cream, yellow, or pink-striped, 30–35 mm.
Phenology: Flowering Apr–Jul.
Habitat: Chaparral, foothills.
Elevation: 300–700 m.
Discussion
Calystegia stebbinsii is notable for having no intermediates or hybrids with any other species or any significant infraspecific variants. In some characters, it is similar to C. vanzuukiae; they grow in similar habitats.
Selected References
None.
Lower Taxa
None.