Sairocarpus subcordatus |
Sairocarpus virga |
|
---|---|---|
dimorphic snapdragon |
tall snapdragon, twig-like snapdragon |
|
Habit | Annuals. | Perennials. |
Stems | 8–90 cm, not self-supporting, hairy; branches twining. |
40–220 cm, self-supporting, glabrous; branches not twining. |
Leaves | opposite proximally, alternate distally; blade ovate, 10–60 × 5–45 mm, surfaces glabrous, glandular-hairy, or eglandular-hairy. |
alternate; blade linear, 50–120 × 3–10 mm, surfaces glabrous. |
Inflorescences | axillary, racemes or flowers solitary. |
terminal, racemes. |
Pedicels | 1–3 mm. |
2–6 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. |
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 | narrowly ovoid, 5–6 mm, glandular-hairy, abaxial locule with 1 pore. |
globular-ovoid, 7–9 mm, glabrous, abaxial locule with 2 pores. |
Seeds | dark brown to black, 1 mm, tuberculate, reticulate-ridged. |
black, 1–1.5 mm, ridges reticulate. |
2n | = 30. |
= 32. |
Sairocarpus subcordatus |
Sairocarpus virga |
|
Phenology | Flowering May–Jun. | Flowering Jun–Jul. |
Habitat | Open slopes on serpentine, under shrubs. | Openings in chaparral, rocky areas, often on serpentine. |
Elevation | 150–800 m. (500–2600 ft.) | 200–2000 m. (700–6600 ft.) |
Distribution |
CA |
CA |
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. (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. 47. | FNA vol. 17, p. 48. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Antirrhinum subcordatum | Antirrhinum virga |
Name authority | (A. Gray) D. A. Sutton: Revis. Antirrhineae, 477. (1988) | (A. Gray) D. A. Sutton: Revis. Antirrhineae, 466. (1988) |
Web links |