Page author: David Giblin
Collinsia grandiflora
large-flowered blue-eyed Mary, blue-lips blue-eyed Mary

Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.

Habitat: Open, moist to rather dry areas, low to middle elevations in the mountains.

Flowers: April-June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Annual, the stem simple or branched, erect, 0.5-5 dm. tall, minutely pubescent.


Lower leaves opposite, petiolate, often toothed when well developed; upper leaves opposite or whorled, entire, usually glabrous, becoming sessile upward, narrowly elliptic or oblong to nearly linear.


Flowers 1-few on short pedicels in the axils of reduced upper leaves; calyx 5-8 mm. long, 5-lobed; corolla bi-labiate, blue with white or pinkish upper lip, 9-17 mm. long, the tube abruptly bent at a right angle to the calyx, shortly pouched at the bend; stamens 4.


Capsule opening along 4 lines.

Accepted Name:
Collinsia grandiflora Lindl.
Publication: Bot. Reg. 13: pl. 1107. 1827.

Synonyms & Misapplications:
Collinsia parviflora Lindl. var. grandiflora (Lindl.) Ganders & G.R. Krause
Additional Resources:

PNW Herbaria: Specimen records of Collinsia grandiflora in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Collinsia grandiflora checklist entry.

OregonFlora: Collinsia grandiflora information.

E-Flora BC: Collinsia grandiflora atlas page.

CalPhotos: Collinsia grandiflora photos.

USDA Plants: Collinsia grandiflora information.

33 photographs:
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