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wiry snapdragon

Photo is of parent taxon
Habit Annuals.
Stems

7–170 cm, not self-supporting, glabrous, eglandular-hairy, or glandular-hairy;

branches twining.

10–100 cm, proximally glandular-hairy and eglandular-hairy.

Leaves

opposite proximally, alternate distally;

blade ovate to narrowly elliptic, 10–60 × 1–20 mm, surfaces glabrous or hairy.

Inflorescences

axillary, racemes or flowers solitary.

branches with 2 leaves at each proximal node.

Pedicels

1–4 mm.

Flowers

cleistogamous and chasmogamous;

calyx lobes unequal, glandular-hairy, adaxial lobe 3.5–14 × 1–9 mm;

corolla light purple to white, often dark-veined, 8–17 mm, base gibbous, mouth 2–4 mm diam., palate sometimes purple-veined, convex, 3.5–8 mm diam., puberulent.

calyx adaxial lobe 4.5–6.5(–10) mm;

corolla light purple, dark-veined on palate, 10–14 mm, adaxial lip 2.5–5.5 mm.

Capsules

ovoid, 4–8 mm, glandular-hairy, abaxial locule with 1 pore.

Seeds

dark brown to black, 0.7–1.5 mm, tuberculate, reticulate-ridged.

2n

= 30.

Sairocarpus vexillocalyculatus

Sairocarpus vexillocalyculatus subsp. intermedius

Phenology Flowering Jun–Sep.
Habitat Gravelly slopes, disturbed sites.
Elevation 100–1400 m. (300–4600 ft.)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Subspecies 3 (3 in the flora).

Subspecies breweri and vexillocalyculatus intergrade where their distributions overlap in the coastal ranges of California. Subspecies intermedius is disjunct in the Sierra Nevada.

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

Subspecies intermedius is known from the northern and central Sierra Nevada.

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

Key
1. Stems proximally glabrous or eglandular-hairy; corollas 11–17 mm, adaxial lips 7–17 mm.
subsp. vexillocalyculatus
1. Stems proximally glandular-hairy and, sometimes, eglandular-hairy; corollas 8–15 mm, adaxial lips 2–5.5 mm.
→ 2
2. Inflorescence branches with 1 leaf at each proximal node.
subsp. breweri
2. Inflorescence branches with 2 leaves at each proximal node.
subsp. intermedius
Source FNA vol. 17, p. 47. FNA vol. 17, p. 48.
Parent taxa Plantaginaceae > Sairocarpus Plantaginaceae > Sairocarpus > Sairocarpus vexillocalyculatus
Sibling taxa
S. cornutus, S. coulterianus, S. kingii, S. multiflorus, S. nuttallianus, S. subcordatus, S. virga, S. watsonii
S. vexillocalyculatus subsp. breweri, S. vexillocalyculatus subsp. vexillocalyculatus
Subordinate taxa
S. vexillocalyculatus subsp. breweri, S. vexillocalyculatus subsp. intermedius, S. vexillocalyculatus subsp. vexillocalyculatus
Synonyms Antirrhinum vexillocalyculatum Antirrhinum vexillocalyculatum subsp. intermedium
Name authority (Kellogg) D. A. Sutton: Revis. Antirrhineae, 472. (1988) (D. M. Thompson) Barringer: Phytoneuron 2013-34: 2. (2013)
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