Flora of North America species comparison

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Collinsia greenei

Greene's blue-eyed Mary, Greene's collinsia
Habit Annuals 10–30 cm.
Stems

erect to ascending.
Leaf

blades narrowly lanceolate to ovate or oblanceolate, margins entire or serrate.
Inflorescences

glandular;

nodes 1–5-flowered;

flowers crowded or not;

distalmost bracts linear, 2–3 mm.
Pedicels

ascending to spreading, proximalmost sometimes longer than calyx, distalmost equal to or shorter than calyx, visible or not.
Flowers

calyx lobes lanceolate to ovate, surpassing capsule, apex subacute to rounded;

corolla ± uniformly dark purple, rarely pale pinkish purple, 10–15 mm, sparsely glandular;

banner length 0.5 times wings, base with 2-crested, crescent-shaped folds extending 1–1.5 mm from throat opening;

stamens: filaments glabrous, adaxials sometimes hairy, basal spur 0.
Seeds

2–4, oval, 2–3 mm, margins thin, not inrolled.
2n

= 14.

Collinsia greenei
Phenology Flowering Apr–Jul(–Aug).
Habitat Open chaparral or coniferous forests, serpentine slopes.
Elevation 300–2500 m. (1000–8200 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Collinsia greenei occurs on ophiolites, most frequently on soil derived from serpentinite and similarly altered ultramafic rock. Within its range, only C. rattanii occurs on these substrates; C. latifolia, C. parviflora, and C. wrightii are not on highly mafic soil.

The dark, nearly uniformly purple corollas of Collinsia greenei are distinctive, and the crescent-shaped flap of tissue on the adaxial lobes is unique. Other taxa have folds that bulge outward but are neither doubly crested nor crescent-shaped.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 67.
Parent taxa Plantaginaceae > Collinsia
Sibling taxa
C. antonina, C. bartsiifolia, C. callosa, C. childii, C. concolor, C. corymbosa, C. grandiflora, 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
Name authority A. Gray: Proc. Amer. Acad. Arts 10: 75. (1874)
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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