Flora of North America species comparison

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Collinsia corymbosa

Collinsia rattanii

round-head Chinese-houses

Rattan collinsia, Rattan's collinsia, sticky blue-eyed Mary
Habit Annuals 5–25 cm. Annuals 8–40 cm.
Stems

decumbent.

erect to ascending.
Leaf

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

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

sparsely and finely glandular;

whorl 1 per branch;

nodes (1–)3–10-flowered;

flowers crowded;

distalmost bracts ovate, 5–9 mm.

scaly and spreading-glandular;

nodes 1–3(–5)-flowered;

flowers not crowded;

distalmost bracts linear, 2–5 mm.
Pedicels

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

ascending, 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 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

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

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

= 14.

= 14.

Collinsia corymbosa

Collinsia rattanii
Phenology Flowering Apr–Jun. Flowering May–Jul(–Aug).
Habitat Coastal sand dunes. Open coniferous forests.
Elevation 0–20 m. (0–100 ft.) 60–1500 m. (200–4900 ft.)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA; OR; WA
[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 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. 71. FNA vol. 17, p. 69.
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. 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. rattanii subsp. glandulosa
Name authority Herder: Gartenflora 1868: 33, plate 568. (1868): Inde× Seminum (St. Petersburg) 1866: 32. (1868) 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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