Sairocarpus virga
Revis. Antirrhineae, 466. 1988.
Common names: Tall or twig-like snapdragon
Endemic
Basionym: Antirrhinum virga A. Gray Proc. Amer. Acad. Arts 7: 373. 1868
Perennials. Stems 40–220 cm, self-supporting, glabrous; branches not twining. Leaves alternate; blade linear, 50–120 × 3–10 mm, surfaces glabrous. Inflorescences terminal, racemes. Pedicels 2–6 mm. Flowers 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 globular-ovoid, 7–9 mm, glabrous, abaxial locule with 2 pores. Seeds black, 1–1.5 mm, ridges reticulate. 2n = 32.
Phenology: Flowering Jun–Jul.
Habitat: Openings in chaparral, rocky areas, often on serpentine.
Elevation: 200–2000 m.
Discussion
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.
Selected References
None.
Lower Taxa
None.