Collinsia antonina
Collinsia heterophylla
San Antonio collinsia
Chinese houses, innocence, purple Chinese-houses
erect.
erect to ascending.
blades oblong, margins crenate.
blades lanceolate-deltate, margins serrate.
± finely scaly, usually sparsely, finely glandular;
nodes 1–3-flowered;
flowers not crowded;
distalmost bracts linear, 2–3 mm.
glabrous or hairy, ± glandular;
whorls 2–7 on main axis;
nodes 2–7-flowered;
flowers crowded;
distalmost bracts linear to lanceolate, 5–6 mm.
ascending to spreading, proximalmost longer than calyx, distalmost equal to calyx, visible.
ascending to spreading, shorter than calyx, not or scarcely visible.
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 linear to ovate, equal to capsule, apex subacute to acute;
corolla red-purple, rarely white, banner white to lavender or tipped dark violet, maroon spots near center and forming horizontal lines near base, wings whitish to rose purple, keel usually with darker red tip, 10–20 mm, usually glabrous;
tube hairy inside, as wide as long, saccate basally, adaxial pouch prominent and ± square;
banner length 0.6–0.9 times wings, lobe base without folds;
stamens: abaxial filaments glabrous, adaxials hairy, basal spur 1.
6–8, oblong, 1.5–2 mm, margins thickened, inrolled.
6–12, ovate, 1.5–2 mm, margins slightly thickened, inrolled.
= 14.
= 14.
Collinsia antonina
Collinsia heterophylla
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.)
Varieties 2 (2 in the flora).
Collinsia heterophylla is the most widespread and frequently encountered species in California. There is structure in phylogenetic analysis of northern and southern populations (that is, paraphyly of southern populations) suggesting northward expansion and evidence for introgression with C. tinctoria (B. G. Baldwin et al. 2011) in the southern Sierra Nevada (Kern County and possibly Fresno County). This species is often confused with other collinsias that have tiered whorls of flowers, most frequently with C. bartsiifolia and C. concolor, which both lack the bold horizontal line present at the base of the adaxial corolla lip of C. heterophylla. Plants with reduced corolla pigmentation, nearly white, are uncommon outside of the South Coast Ranges and are often misidentified as C. bartsiifolia.
Collinsia bicolor Bentham, which pertains here, is a later homonym of C. bicolor Rafinesque, a synonym of 1. C. verna.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Corollas (13–)15–20 mm; leaf blade abaxial surfaces glabrous, midveins rarely hairy; banner lengths 0.8–0.9 times wings, reflexed portions 4+ times basal portions. | var. heterophylla |
1. Corollas 10–15(–18) mm; leaf blade abaxial surfaces sparsely hairy; banner lengths 0.6–0.8 times wings, reflexed portions 2–3 times basal portions. | var. austromontana |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
