Sairocarpus vexillocalyculatus subsp. breweri

(A. Gray) Barringer

Phytoneuron 2013-34: 2. 2013.

Common names: Brewer's snapdragon
Endemic
Basionym: Antirrhinum breweri A. Gray Proc. Amer. Acad. Arts 7: 374. 1868
Synonyms: A. vagans var. breweri (A. Gray) Jepson A. vexillocalyculatum subsp. breweri (A. Gray) D. M. Thompson Sairocarpus breweri (A. Gray) D. A. Sutton
Treatment appears in FNA Volume 17. Treatment on page 47. Mentioned on page 48.

Stems 10–70(–100) cm, proximally glandular-hairy and, sometimes, eglandular-hairy. Inflorescences: branches with 1 leaf at each proximal node. Flowers: calyx adaxial lobe 3.5–5.5 mm; corolla white to light purple, often with darker veins, 8–15 mm, adaxial lip 2–5.5 mm.


Phenology: Flowering Jun–Sep.
Habitat: Gravelly lower slopes, disturbed areas, often on serpentine.
Elevation: 50–2000 m.

Discussion

Subspecies breweri and Sairocarpus cornutus both have white to purple corollas and grow in the same general area; S. cornutus has a deeper spur at the base of the corolla and is self-supporting, without twining branches.

Selected References

None.

Lower Taxa

None.
Kerry A. Barringer +
(A. Gray) Barringer +
Antirrhinum breweri +
Brewer's snapdragon +
Calif. +  and Oreg. +
50–2000 m. +
Gravelly lower slopes, disturbed areas, often on serpentine. +
Flowering Jun–Sep. +
Phytoneuron +
A. vagans var. breweri +, A. vexillocalyculatum subsp. breweri +  and Sairocarpus breweri +
Sairocarpus vexillocalyculatus subsp. breweri +
Sairocarpus vexillocalyculatus +
subspecies +