Difference between revisions of "Sairocarpus nuttallianus"
Revis. Antirrhineae, 464. 1988.
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|genus=Sairocarpus | |genus=Sairocarpus | ||
|species=Sairocarpus nuttallianus | |species=Sairocarpus nuttallianus | ||
Revision as of 20:23, 27 May 2020
Annuals, rarely biennials. Stems 6–200 cm, not self-supporting, glandular-hairy; branches twining. Leaves opposite proximally, alternate distally; blade ovate, 2–60 × 1–50 mm, surfaces glandular-hairy. Inflorescences axillary, flowers solitary. Pedicels 2–20(–25) mm. Flowers cleistogamous and chasmogamous; calyx lobes equal, glandular-hairy, adaxial lobe 3–6 × 1–3.5 mm; corolla pale purple to purple, sometimes dark-veined, 7–12 mm, base slightly gibbous, mouth 2.5–3.5 mm diam., palate white, purple-veined, rounded, 2.5–6 mm diam., puberulent. Capsules ovoid, 3–11 mm, glandular-hairy, abaxial locule with 1 pore. Seeds brown, 0.5–1 mm, ridged longitudinally. 2n = 32.
Phenology: Flowering Mar–Aug.
Habitat: Stabilized coastal dunes, rocky or disturbed areas.
Elevation: 0–1300 m.
Distribution
Ariz., Calif., Mexico (Baja California, Baja California Sur, Sonora).
Discussion
Plants of Sairocarpus nuttallianus are unique in having gold-colored hairs in the mouth of the corolla. D. M. Thompson (1988) recognized two intergrading subspecies based on degree of hairiness and slight differences in seed sculpturing, but the differences are minor and inconsistent.
Selected References
None.