Sairocarpus vexillocalyculatus |
Sairocarpus vexillocalyculatus subsp. breweri |
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wiry snapdragon |
Brewer's snapdragon |
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Habit | Annuals. | |||||||||
Stems | 7–170 cm, not self-supporting, glabrous, eglandular-hairy, or glandular-hairy; branches twining. |
10–70(–100) cm, proximally glandular-hairy and, sometimes, eglandular-hairy. |
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Leaves | opposite proximally, alternate distally; blade ovate to narrowly elliptic, 10–60 × 1–20 mm, surfaces glabrous or hairy. |
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Inflorescences | axillary, racemes or flowers solitary. |
branches with 1 leaf at each proximal node. |
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Pedicels | 1–4 mm. |
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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 3.5–5.5 mm; corolla white to light purple, often with darker veins, 8–15 mm, adaxial lip 2–5.5 mm. |
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Capsules | ovoid, 4–8 mm, glandular-hairy, abaxial locule with 1 pore. |
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Seeds | dark brown to black, 0.7–1.5 mm, tuberculate, reticulate-ridged. |
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2n | = 30. |
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Sairocarpus vexillocalyculatus |
Sairocarpus vexillocalyculatus subsp. breweri |
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Phenology | Flowering Jun–Sep. | |||||||||
Habitat | Gravelly lower slopes, disturbed areas, often on serpentine. | |||||||||
Elevation | 50–2000 m. (200–6600 ft.) | |||||||||
Distribution |
CA; OR
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CA; OR |
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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 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.) |
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Key |
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Source | FNA vol. 17, p. 47. | FNA vol. 17, p. 47. | ||||||||
Parent taxa | Plantaginaceae > Sairocarpus | Plantaginaceae > Sairocarpus > Sairocarpus vexillocalyculatus | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Antirrhinum vexillocalyculatum | Antirrhinum breweri, A. vagans var. breweri, A. vexillocalyculatum subsp. breweri, S. breweri | ||||||||
Name authority | (Kellogg) D. A. Sutton: Revis. Antirrhineae, 472. (1988) | (A. Gray) Barringer: Phytoneuron 2013-34: 2. (2013) | ||||||||
Web links |