Annuals. Stems 8–90 cm, not self-supporting, hairy; branches twining. Leaves opposite proximally, alternate distally; blade ovate, 10–60 × 5–45 mm, surfaces glabrous, glandular-hairy, or eglandular-hairy. Inflorescences axillary, racemes or flowers solitary. Pedicels 1–3 mm. Flowers chasmogamous; calyx lobes unequal, hairy or glandular-hairy, adaxial lobe 8–14 × 5–10 mm; corolla white to tan, 13–17 mm, base gibbous, mouth 2.5–3.5 mm diam., palate not veined, slightly 2-lobed, 5–9 mm diam., tomentose. Capsules narrowly ovoid, 5–6 mm, glandular-hairy, abaxial locule with 1 pore. Seeds dark-brown to black, 1 mm, tuberculate, reticulate-ridged. 2n = 30.

Phenology: Flowering May–Jun.
Habitat: Open slopes on serpentine, under shrubs.
Elevation: 150–800 m.

Distribution

• Generated Map
• Legacy Map

Calif.

Discussion

Sairocarpus subcordatus is similar to S. vexillocalyculatus; it has relatively broader leaves and white to tan corollas with abaxial lobes reflexed. The species is known from the northern and central Inner North Coast Ranges.

Selected References

None.

Lower Taxa

None.