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.
0.2 cm2 mm <br />0.002 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
hairy;glandular-hairy +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
1mm +  and 9mm +
Kerry A. Barringer +
(A. Gray) Barringer +
alternate +, opposite +, whorled +, helical +  and subopposite +
gibbous +
Antirrhinum breweri +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
ovate;narrowly elliptic +
not leathery +  and not fleshy +
0.1 cm1 mm <br />0.001 m <br /> (2 cm20 mm <br />0.02 m <br />) +
glandular-hairy +, hairy +  and glabrous +
glandular-hairy +
cupulate +, tubular +  and symmetric +
glandular-hairy +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Brewer's snapdragon +
white +  and light purple +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Calif. +  and Oreg. +
drupe-like +
50–2000 m. +
curved +  and straight +
glandular-hairy +  and glabrous +
1 +  and 4 +
chasmogamous +  and cleistogamous +
poricidal +, septicidal +, loculicidal +  and dehiscence +
0.25 cm2.5 mm <br />0.0025 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Gravelly lower slopes, disturbed areas, often on serpentine. +
axillary +  and terminal +
alternate +  and opposite +
persistent +  and deciduous +
as-long-as corolla-tube +  and shorter +
ovate;lanceolate +
unequal +
entire +  and subentire toothed or lobed +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
purple-veined +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
5 +  and 4 +
Flowering Jun–Sep. +
Phytoneuron +
minute +
dark-brown +  and black +
tuberculate +
reticulate-ridged +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
alternate +  and opposite +
70 cm700 mm <br />0.7 m <br /> (100 cm1,000 mm <br />1 m <br />) +
not self-supporting +
sprawling +, creeping +  and prostrate +
eglandular-hairy +  and glandular-hairy +
filiform +
10 cm100 mm <br />0.1 m <br /> (70 cm700 mm <br />0.7 m <br />) +
punctiform +
hairy +  and glabrous +
A. vagans var. breweri +, A. vexillocalyculatum subsp. breweri +  and Sairocarpus breweri +
Sairocarpus vexillocalyculatus subsp. breweri +
Sairocarpus vexillocalyculatus +
subspecies +
perennial +, biennial +  and annual +