Sairocarpus nuttallianus

(Bentham ex A. de Candolle) D. A. Sutton

Revis. Antirrhineae, 464. 1988.

Common names: Violet snapdragon
Basionym: Antirrhinum nuttallianum Bentham ex A. de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 592. 1846
Synonyms: A. nuttallianum subsp. subsessile (A. Gray) D. M. Thompson A. nuttallianum var. subsessile (A. Gray) Jepson A. pusillum Brandegee A. subsessile A. Gray Sairocarpus pusillus (Brandegee) D. A. Sutton
Treatment appears in FNA Volume 17. Treatment on page 46. Mentioned on page 44.

Annuals, rarely biennials. Stems 6–200 cm, not self-supporting, glandular-hairy; branches twining. Leaves opposite proximally, alternate distally; blade ovate, 2–60 × 1–50 mm, surfaces glandular-hairy. Inflorescences axillary, flowers solitary. Pedicels 2–20(–25) 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. Capsules ovoid, 3–11 mm, glandular-hairy, abaxial locule with 1 pore. Seeds brown, 0.5–1 mm, ridged longitudinally. 2n = 32.

Phenology: Flowering Mar–Aug.
Habitat: Stabilized coastal dunes, rocky or disturbed areas.
Elevation: 0–1300 m.


Ariz., Calif., Mexico (Baja California, Baja California Sur, Sonora).


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.

Selected References


Lower Taxa

... more about "Sairocarpus nuttallianus"
Kerry A. Barringer +
(Bentham ex A. de Candolle) D. A. Sutton +
Antirrhinum nuttallianum +
Violet snapdragon +
Ariz. +, Calif. +, Mexico (Baja California +, Baja California Sur +  and Sonora). +
0–1300 m. +
Stabilized coastal dunes, rocky or disturbed areas. +
Flowering Mar–Aug. +
Revis. Antirrhineae, +
A. nuttallianum subsp. subsessile +, A. nuttallianum var. subsessile +, A. pusillum +, A. subsessile +  and Sairocarpus pusillus +
Sairocarpus nuttallianus +
Sairocarpus +
species +