Flora of North America species comparison

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Sairocarpus virga

tall snapdragon, twig-like snapdragon
Habit 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.

Sairocarpus virga
Phenology Flowering Jun–Jul.
Habitat Openings in chaparral, rocky areas, often on serpentine.
Elevation 200–2000 m. (700–6600 ft.)
Distribution
from FNA
CA
[BONAP county map]
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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 48.
Parent taxa Plantaginaceae > Sairocarpus
Sibling taxa
S. cornutus, S. coulterianus, S. kingii, S. multiflorus, S. nuttallianus, S. subcordatus, S. vexillocalyculatus, S. watsonii
Synonyms Antirrhinum virga
Name authority (A. Gray) D. A. Sutton: Revis. Antirrhineae, 466. (1988)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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