Sairocarpus nuttallianus |
Sairocarpus virga |
|
---|---|---|
Nuttall's snapdragon, violet snapdragon |
tall snapdragon, twig-like snapdragon |
|
Habit | Annuals, rarely biennials. | Perennials. |
Stems | 6–200 cm, not self-supporting, glandular-hairy; branches twining. |
40–220 cm, self-supporting, glabrous; branches not twining. |
Leaves | opposite proximally, alternate distally; blade ovate, 2–60 × 1–50 mm, surfaces glandular-hairy. |
alternate; blade linear, 50–120 × 3–10 mm, surfaces glabrous. |
Inflorescences | axillary, flowers solitary. |
terminal, racemes. |
Pedicels | 2–20(–25) mm. |
2–6 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. |
chasmogamous; calyx lobes equal, glabrous, adaxial lobe 6–8 × 1.5–2.5 mm; corolla pink to pale pink, 13–18 mm, base gibbous, mouth 3–5 mm diam., palate not veined, rounded, 5–7.5 mm diam., puberulent. |
Capsules | ovoid, 3–11 mm, glandular-hairy, abaxial locule with 1 pore. |
globular-ovoid, 7–9 mm, glabrous, abaxial locule with 2 pores. |
Seeds | brown, 0.5–1 mm, ridged longitudinally. |
black, 1–1.5 mm, ridges reticulate. |
2n | = 32. |
= 32. |
Sairocarpus nuttallianus |
Sairocarpus virga |
|
Phenology | Flowering Mar–Aug. | Flowering Jun–Jul. |
Habitat | Stabilized coastal dunes, rocky or disturbed areas. | Openings in chaparral, rocky areas, often on serpentine. |
Elevation | 0–1300 m. (0–4300 ft.) | 200–2000 m. (700–6600 ft.) |
Distribution |
AZ; CA; Mexico (Baja California, Baja California Sur, Sonora)
|
CA |
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Stems of Sairocarpus virga regrow quickly after fires (D. M. Thompson 1988). Sairocarpus virga is known from the southern High and Inner North Coast ranges. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 46. | FNA vol. 17, p. 48. |
Parent taxa | Plantaginaceae > Sairocarpus | Plantaginaceae > Sairocarpus |
Sibling taxa | ||
Synonyms | Antirrhinum nuttallianum, A. nuttallianum subsp. subsessile, A. nuttallianum var. subsessile, A. pusillum, A. subsessile, S. pusillus | Antirrhinum virga |
Name authority | (Bentham ex A. de Candolle) D. A. Sutton: Revis. Antirrhineae, 464. (1988) | (A. Gray) D. A. Sutton: Revis. Antirrhineae, 466. (1988) |
Web links |