Flora of North America species comparison

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Collinsia corymbosa

Collinsia grandiflora

round-head Chinese-houses

blue-lips blue-eyed Mary, giant blue eyed Mary, large-flower blue-eyed Mary, large-flower collinsia
Habit Annuals 5–25 cm. Annuals (4–)6–35 cm.
Stems

decumbent.

erect to ascending.
Leaf

blades lanceolate to ovate, margins crenate, abaxial surface glabrous, adaxial subglabrous or finely gray-hairy.

blades narrowly oblong to lanceolate, margins subentire.
Inflorescences

sparsely and finely glandular;

whorl 1 per branch;

nodes (1–)3–10-flowered;

flowers crowded;

distalmost bracts ovate, 5–9 mm.

glabrous or finely 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, shorter than calyx, not or scarcely visible.

ascending to reflexed, proximals usually longer than calyx, visible.
Flowers

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

corolla usually whitish, 14–22 mm, wings sparsely and finely glandular, not hairy;

banner length 0.1–0.3(–0.4) times wings, lobe base without folds, reflexed portion 1 mm, shorter than basal portion, brownish, not red-banded;

stamens: filaments hairy, basal spur 0.

calyx lobes ± deltate, equal to capsule, apex acuminate;

corolla bluish, banner pale at center, 8–15 mm, keel glabrous;

banner length 0.8–1 times wings, lobe base without folds;

banner lobes and wings widely obovate, usually 2–6 mm wide;

throat strongly angled to tube, longer than diam., pouch prominent, angular;

stamens: filaments glabrous, basal spur 0.
Seeds

8–16, oblong to oval, 2–2.5 mm, margins thickened, inrolled.

(3 or)4, oblong, 2–2.5 mm, margins thickened, inrolled.
2n

= 14.

= 14, 28, 42.

Collinsia corymbosa

Collinsia grandiflora
Phenology Flowering Apr–Jun. Flowering (Mar–)May–Jul.
Habitat Coastal sand dunes. Gravelly or grassy margins of coniferous or open oak woodlands, moss-covered rock outcrops, other open areas.
Elevation 0–20 m. (0–100 ft.) 0–1800 m. (0–5900 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Collinsia corymbosa is known from Mendocino County. Specimens from other sites identified as C. corymbosa are C. bartsiifolia var. hirsuta. A phylogenetic study using DNA showed evidence of a close relationship between C. corymbosa and C. bartsiifolia (B. G. Baldwin et al. 2011).

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

Collinsia grandiflora occurs mostly in the coastal ranges. The distinction between C. grandiflora and C. parviflora is usually clear in California where corolla lobe shape and size are mostly well correlated. The distinction is much less clear in British Columbia, Oregon, and Washington.

An alternative to the treatment here would be to follow F. R. Ganders and G. R. Krause (1986), who suggested that Collinsia grandiflora and C. parviflora be treated as one species with two intergrading varieties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 71. FNA vol. 17, p. 65.
Parent taxa Plantaginaceae > Collinsia Plantaginaceae > Collinsia
Sibling taxa
C. antonina, C. bartsiifolia, C. callosa, C. childii, C. concolor, 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. 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
Synonyms C. parviflora var. diehlii, C. parviflora var. grandiflora
Name authority Herder: Gartenflora 1868: 33, plate 568. (1868): Inde× Seminum (St. Petersburg) 1866: 32. (1868) Lindley: Bot. Reg. 13: plate 1107. (1827)
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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