Flora of North America species comparison

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Collinsia parviflora

Collinsia rattanii

blue-eyed Mary, collinsia, few flower blue eyed Mary, maiden blue eyed Mary, small-flower blue-eyed-Mary, small-flower collinsia

Rattan collinsia, Rattan's collinsia, sticky blue-eyed Mary
Habit Annuals 3–40 cm. Annuals 8–40 cm.
Stems

erect to ascending.

erect to ascending.
Leaf

blades ± linear-lanceolate, obovate, or narrowly elliptic, margins subentire.

blades ± linear, length usually 6+ times width, margins entire, rarely crenate.
Inflorescences

glabrous or sparsely and finely glandular;

proximal nodes 1-flowered, distals 3–5(–7)-flowered;

flowers not crowded proximally, sometimes crowded distally;

distalmost bracts linear, 5–6 mm.

scaly and spreading-glandular;

nodes 1–3(–5)-flowered;

flowers not crowded;

distalmost bracts linear, 2–5 mm.
Pedicels

ascending to reflexed, longer than calyx, visible.

ascending, longer than calyx, visible.
Flowers

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

corolla blue, banner whitish or blue-tipped, 4–8 mm, glabrous;

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

banner lobes and wings blue, sometimes purplish, oblong, 1(–3) mm wide;

throat barely angled to tube, tube and throat white, narrowed to lips, pouch angular, ± hidden by calyx;

stamens: filaments glabrous, basal spur 0.

calyx lobes lanceolate to ovate, equal to capsule, apex subacute to slightly rounded;

corolla purplish lavender, rarely white, 4–8 mm, glabrous or keel sometimes sparsely glandular;

banner length 0.8–1 times wings, lobe base with folds bulging less than 0.5 mm away from throat opening, reflexed portion length 1 times throat;

throat barely angled to tube, pouch ± hidden by calyx;

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

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

(3 or)4–6, oblong to ovate, 1.5–2 mm, margins thickened, inrolled.
2n

= 14, 28, 42.

= 14.

Collinsia parviflora

Collinsia rattanii
Phenology Flowering Mar–Jul. Flowering May–Jul(–Aug).
Habitat Forests, grasslands, meadows, eroded banks, bedrock depressions, scree slopes, shrublands, shaded shorelines. Open coniferous forests.
Elevation 0–3500 m. (0–11500 ft.) 60–1500 m. (200–4900 ft.)
Distribution
from FNA
AK; AZ; CA; CO; ID; MA; MI; MT; ND; NE; NM; NV; OR; PA; SD; UT; VT; WA; WY; AB; BC; MB; NS; ON; SK; YT
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Collinsia parviflora is the closest relative of C. grandiflora and is primarily a plant of moist montane habitats with well-drained, rocky or sandy soil. However, it occurs in a wide range of habitats across its entire range. The species is also the most widespread taxon within Collinsia. Some plants from the western coastal ranges may be difficult to separate from C. grandiflora.

Collinsia parviflora is frequently confused with C. wrightii. The corollas of C. wrightii are distinctly purplish; those of C. parviflora are bright blue. The acute to acuminate sepals of C. parviflora contrast with the blunt, rounded tips of sepals of C. wrightii.

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

Collinsia rattanii is best distinguished from C. linearis by corolla shape (floor of throat nearly parallel to abaxial side of calyx and reflexed portion of adaxial lip about equal to throat) and smaller size.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 66. FNA vol. 17, p. 69.
Parent taxa Plantaginaceae > Collinsia Plantaginaceae > Collinsia
Sibling taxa
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. 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. sparsiflora, C. tinctoria, C. torreyi, C. verna, C. violacea, C. wrightii
Synonyms C. grandiflora var. pusilla C. rattanii subsp. glandulosa
Name authority Lindley: Bot. Reg. 13: plate 1082. (1827) A. Gray: Proc. Amer. Acad. Arts 15: 50. (1879) — (as rattani)
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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