Page authors: Don Knoke, David Giblin
Layia glandulosa
white layia, white daisy tidytips

Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Idaho, Utah, Arizona and New Mexico.

Habitat: Dry, open areas from sagebrush desert to low elevations in the mountains.

Flowers: April-June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies, butterflies


Branching annual, 0.5-4 dm. tall, with spreading hairs and stalked glands, especially above.


Leaves 1-6 cm. long, narrow, the lower pinnatifid to toothed, the upper entire, chiefly alternate.


Heads terminating the branches; involucre 6-9 mm. high, glandular and hairy, herbaceous, flattened on the back below, with thin margins folded around the achene; rays 4-15 mm. long, broad, white and 3-toothed, pistillate and fertile; disk flowers yellow, perfect and fertile; receptacle broad and flat, with a series of thin, chaffy bracts between the ray and disk flowers; ray flowers without pappus, disk flowers with about 10 white pappus bristles on the achene.

Accepted Name:
Layia glandulosa (Hook.) Hook. & Arn.
Publication: Bot. Beechey Voy. 358. 1839.

Synonyms & Misapplications:
Layia glandulosa (Hook.) Hook. & Arn. ssp. glandulosa
Layia glandulosa (Hook.) Hook. & Arn. ssp. lutea D.D. Keck
Additional Resources:

PNW Herbaria: Specimen records of Layia glandulosa in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Layia glandulosa checklist entry

OregonFlora: Layia glandulosa information

E-Flora BC: Layia glandulosa atlas page

CalPhotos: Layia glandulosa photos

39 photographs:
Group by