Page authors: Don Knoke, David Giblin
Plagiobothrys tenellus
Pacific popcorn-flower, slender popcorn-flower

Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Baja California, east to Idaho and Nevada.

Habitat: Dry, open places at low elevations.

Flowers: April-June

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies


Spreading-hairy annual from a taproot, the 1-several stems erect or ascending, 0.5-2.5 dm. tall.


Leaves all alternate, the basal ones tufted and persistent, 0.7-3 cm. long and 2-8 mm. wide, sessile; cauline leaves smaller, lanceolate, few and scattered.


Inflorescence of terminal, rather few-flowered racemes; calyx 3-5 mm. long; corolla tube narrow, the 5 lobes abruptly spreading, the limb 2-4 mm. wide, white; hairy appendages opposite the corolla lobes at the top of the tube; nutlets attached to the style in a small area above the base.


Nutlets usually 4, 1.5-2.5 mm. long, cruciform, with small projections in rows along the keel and arms.

Accepted Name:
Plagiobothrys tenellus (Nutt. ex Hook.) A. Gray
Publication: Proc. Amer. Acad. Arts 20: 283. 1885.

Synonyms & Misapplications:
Plagiobothrys asper Greene
Additional Resources:

PNW Herbaria: Specimen records of Plagiobothrys tenellus in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Plagiobothrys tenellus checklist entry

OregonFlora: Plagiobothrys tenellus information

E-Flora BC: Plagiobothrys tenellus atlas page

CalPhotos: Plagiobothrys tenellus photos

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