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San Antonio collinsia

violet blue-eyed Mary, violet collinsia

Habit Annuals 4–15 cm. Annuals 10–35(–60) cm.
Stems

erect.

erect to ascending.

Leaf

blades oblong, margins crenate.

blades oblong to lanceolate, margins entire or weakly serrate.

Inflorescences

± finely scaly, usually sparsely, finely glandular;

nodes 1–3-flowered;

flowers not crowded;

distalmost bracts linear, 2–3 mm.

glabrous or glandular to scaly-hairy;

nodes 1–6(–8)-flowered;

flowers not crowded proximally, sometimes crowded distally;

distalmost bracts linear, 5–6(+) mm.

Pedicels

ascending to spreading, proximalmost longer than calyx, distalmost equal to calyx, visible.

ascending to reflexed, usually longer than calyx, visible, glandular abaxially and adaxially.

Flowers

calyx lobes lanceolate, slightly surpassing capsule, apex blunt to rounded, inner face white-hairy;

corolla purple, lobes purple, rarely white, throat white with red-purple spots at base of banner, 4.5–8 mm, glabrous;

banner length 1 times wings, lobe base without folds;

stamens: abaxial filaments glabrous, adaxials sparsely hairy, basal spur 0.

calyx lobes deltate, surpassing capsule, apex acuminate;

corolla violet, banner pale violet to white, base yellow with dark orange spot, wings and keel violet, 10–15 mm, keel glabrous or sparsely glandular;

banner length 0.6–0.7(–0.8) times wings, lobe base without folds;

wings narrowly obcordate, notched 0.2 times whole length;

throat slightly angled to tube, longer than diam., pouch arched, slightly expanded;

stamens: abaxial filaments glabrous, adaxials hairy, basal spur 0.

Capsules

without red blotches.

Seeds

6–8, oblong, 1.5–2 mm, margins thickened, inrolled.

6–12, oblong to oval, 1–1.5 mm, margins thickened, inrolled.

2n

= 14.

= 14.

Collinsia antonina

Collinsia violacea

Phenology Flowering Mar–Apr. Flowering Apr–Jun.
Habitat Margins of oak scrub on screes. Sandy or rocky soils, dry open areas, woodlands.
Elevation 200–400 m. (700–1300 ft.) 10–300 m. (0–1000 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
AR; IL; KS; MO; OK; TX
[WildflowerSearch map]
[BONAP county map]
Discussion

Collinsia antonina is geographically narrowly endemic, known only from Monterey County. It occurs on scree derived from whitish siliceous shale of the Monterey Formation at the edge of woodlands near the shade of Quercus john-tuckeri. It is morphologically similar to C. parryi, which lacks the coarse white hairs on the inner face of the sepals. DNA studies (B. G. Baldwin et al. 2011) show a more distant relationship between C. antonina and C. parryi than suspected from morphology alone.

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

Source FNA vol. 17, p. 66. FNA vol. 17, p. 65.
Parent taxa Plantaginaceae > Collinsia Plantaginaceae > Collinsia
Sibling taxa
C. bartsiifolia, C. callosa, C. childii, C. concolor, C. corymbosa, C. grandiflora, C. greenei, C. heterophylla, C. latifolia, C. linearis, C. multicolor, C. parryi, C. parviflora, C. rattanii, C. sparsiflora, C. tinctoria, C. torreyi, C. verna, C. violacea, C. wrightii
C. antonina, C. bartsiifolia, C. callosa, C. childii, C. concolor, C. corymbosa, C. grandiflora, C. greenei, C. heterophylla, C. latifolia, C. linearis, C. multicolor, C. parryi, C. parviflora, C. rattanii, C. sparsiflora, C. tinctoria, C. torreyi, C. verna, C. wrightii
Synonyms C. antonina subsp. purpurea
Name authority Hardham: Leafl. W. Bot. 10: 133. (1964) Nuttall: Trans. Amer. Philos. Soc., n. s. 5: 179. (1835)
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