Flora of North America species comparison

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Collinsia bartsiifolia

Collinsia bartsiifolia var. davidsonii

white blue-eyed Mary, white collinsia
Photo is of parent taxon

Davidson's blue eyed Mary, Davidson's collinsia
Habit Annuals 5–35 cm. Plants 5–20(–25) cm.
Stems

erect to ascending or decumbent.

Leaf

blades lanceolate-oblong to oblong, 1–4 cm, margins crenate.

Inflorescences

sparsely and obscurely glandular or shaggy-hairy or densely glandular;

whorls (1 or)2–7 on main axis, sometimes fewer on branches;

nodes (2 or)3–6-flowered;

flowers crowded;

distalmost bracts linear, 3–5(+) mm.

not or scarcely glandular.
Pedicels

ascending to spreading, shorter than calyx, not or scarcely visible.

Flowers

calyx lobes oblong to ovate, equal to capsule, apex rounded;

corolla whitish to pinkish, banner lobes and wings rarely purple-tipped and/or with purple spots at base, 8–20 mm, glabrous or glandular;

banner length 0.5–0.9+ times wings, lobe base without folds, tube longer than diam., hairy inside;

banner lobes ± oblong, toothed, backs often touching or parallel, wings ± oblong to obovate, entire or notched;

stamens: abaxial filaments glabrous or hairy, adaxials hairy, basal spur 0(or 1).

corolla usually white to pale lavender, wings and keel often pinkish, 9–14 mm, glabrous;

banner length 0.7–0.9+ times wings, wings obovate, notched.
Seeds

8–16, oblong to ovate, sometimes prismatic or hourglass-shaped, 0.8–1.5 mm, margins thickened, inrolled.

2n

= 14.

Collinsia bartsiifolia

Collinsia bartsiifolia var. davidsonii
Phenology Flowering Apr–Jun.
Habitat Open, sandy places, rarely on serpentine soils.
Elevation 500–1300 m. (1600–4300 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 4 (4 in the flora).

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

Variety davidsonii is known from drier regions east of the South Coast and Transverse ranges. Some collections suggest a relationship between precipitation and corolla size; others are of intermediate size and difficult to separate from var. bartsiifolia. The two varieties, in general, are not sympatric.

Some populations of var. davidsonii near New Idria and San Benito Mountain in San Benito County occur on serpentine soil. In those populations, banners are slightly reduced relative to those of plants in nearby populations found in sandy habitats.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Corollas 13–20 mm.
→ 2
2. Banner lengths 0.7–0.9+ times wings; plants (10–)20–35 cm.
var. bartsiifolia
2. Banner lengths 0.5–0.7 times wings; plants 5–20 cm.
var. hirsuta
1. Corollas 8–14 mm.
→ 3
3. Corollas glabrous, usually white to pale lavender, wings often pinkish, obovate, notably notched; inflorescences not or scarcely glandular.
var. davidsonii
3. Corollas glandular, pink to pinkish lavender, wings usually purple-tipped with purple spots at base, oblong to oblanceolate, entire or shallowly notched; inflorescences usually notably densely glandular.
var. stricta
Source FNA vol. 17, p. 72. FNA vol. 17, p. 72.
Parent taxa Plantaginaceae > Collinsia Plantaginaceae > Collinsia > Collinsia bartsiifolia
Sibling taxa
C. antonina, 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. bartsiifolia var. bartsiifolia, C. bartsiifolia var. hirsuta, C. bartsiifolia var. stricta
Subordinate taxa
C. bartsiifolia var. bartsiifolia, C. bartsiifolia var. davidsonii, C. bartsiifolia var. hirsuta, C. bartsiifolia var. stricta
Synonyms C. davidsonii
Name authority Bentham: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 10: 318. (1846) — (as bartsiaefolia) (Parish) Newsom: Bot. Gaz. 87: 272. (1929) — (as bartsiaefolia)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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