Flora of North America species comparison

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Sairocarpus vexillocalyculatus subsp. vexillocalyculatus

Sairocarpus vexillocalyculatus subsp. breweri
Photo is of parent taxon
Photo is of parent taxon

Brewer's snapdragon
Stems

7–170 cm, proximally glabrous or eglandular-hairy.

10–70(–100) cm, proximally glandular-hairy and, sometimes, eglandular-hairy.
Inflorescences

branches with 2 leaves at each proximal node.

branches with 1 leaf at each proximal node.
Flowers

calyx adaxial lobe 7–14 mm;

corolla light purple, without darker veins, 11–17 mm, adaxial lip 7–17 mm.

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.

Sairocarpus vexillocalyculatus subsp. vexillocalyculatus

Sairocarpus vexillocalyculatus subsp. breweri
Phenology Flowering Jun–Aug. Flowering Jun–Sep.
Habitat Gravelly slopes, disturbed sites, often on serpentine. Gravelly lower slopes, disturbed areas, often on serpentine.
Elevation 50–1200 m. (200–3900 ft.) 50–2000 m. (200–6600 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; OR
[BONAP county map]
Discussion

Subspecies vexillocalyculatus grows in the same general area as Sairocarpus subcordatus. Sairocarpus subcordatus can be distinguished from subsp. vexillocalyculatus by its broader leaves, white to tan corollas, and reflexed abaxial corolla lobes.

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

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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 47. FNA vol. 17, p. 47.
Parent taxa Plantaginaceae > Sairocarpus > Sairocarpus vexillocalyculatus Plantaginaceae > Sairocarpus > Sairocarpus vexillocalyculatus
Sibling taxa
S. vexillocalyculatus subsp. breweri, S. vexillocalyculatus subsp. intermedius
S. vexillocalyculatus subsp. intermedius, S. vexillocalyculatus subsp. vexillocalyculatus
Synonyms Antirrhinum elmeri, S. elmeri Antirrhinum breweri, A. vagans var. breweri, A. vexillocalyculatum subsp. breweri, S. breweri
Name authority unknown (A. Gray) Barringer: Phytoneuron 2013-34: 2. (2013)
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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