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spur snapdragon

Habit Annuals.
Stems

10–60 cm, self-supporting, glandular-hairy;

branches not twining.

Leaves

opposite proximally, alternate distally;

blade linear to oblanceolate, 7–43 × 3–6(–10) mm, surfaces glandular-hairy.

Inflorescences

axillary, flowers solitary.

Pedicels

1–4 mm.

Flowers

chasmogamous;

calyx lobes equal or subequal, glandular-hairy, hairs long, eglandular, adaxial lobe 3–7 × 1 mm;

corolla white to pale lavender, often violet-veined, 9–14 mm, base spurred, mouth 2–3 mm diam., palate sometimes purple-veined, rounded or angular, 3.5–6.5 mm diam., glabrous or hairy.

Capsules

ovoid, 5–7 mm, glandular-hairy, abaxial locule indehiscent or with 1 pore.

Seeds

black to dark brown, 1 mm, tuberculate and longitudinally ridged.

2n

= 32.

Sairocarpus cornutus

Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Corolla veins violet, palates rounded, hairy, without yellow patches.
subsp. cornutus
1. Corolla veins not contrasting, palates angular, glabrous or hairy, often with 2 yellow patches.
subsp. leptaleus
Source FNA vol. 17, p. 45.
Parent taxa Plantaginaceae > Sairocarpus
Sibling taxa
S. coulterianus, S. kingii, S. multiflorus, S. nuttallianus, S. subcordatus, S. vexillocalyculatus, S. virga, S. watsonii
Subordinate taxa
S. cornutus subsp. cornutus, S. cornutus subsp. leptaleus
Synonyms Antirrhinum cornutum
Name authority (Bentham) D. A. Sutton: Revis. Antirrhineae, 468. (1988)
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