Page author: David Giblin
Thelypodium milleflorum
many flowered thelypody
WTU specimens
Other herbaria

Distribution: Occurring east of the Cascades crest in Washington, chiefly near the Columbia River; Washington south to Nevada, east to Idaho.

Habitat: Rock cliffs and dry, rocky areas.

Flowers: April-July

Origin: Native

Conservation Status: Not of concern

Description:
General:

Glabrous and glaucous biennial, the stem often hollow, usually freely-branched, 3-25 dm. tall.

Leaves:

Leaves rather fleshy, the basal ovate to deltoid-lanceolate, 1-4.5 dm. long, long-petiolate, sharply and deeply lobed; cauline leaves alternate, numerous, reduced upward, pinnatifid to nearly entire.

Flowers:

Inflorescence of bractless, elongate racemes; pedicles stout, 2-5 mm. long, erect-ascending; sepals 4, erect, 3.5-7 mm. long, white, not saccate at the base; petal 4, white, 6-20 mm. long, linear to narrowly spatulate; stamens 6, the filaments flattened, distinct, shorter than the sepals; style 1-3 mm. long.

Fruits:

Siliques erect, straight to strongly curved, 3-6 cm. long and about 1 mm. thick, on a stipe 1-4 mm. long; seeds in 1 series.

Accepted Name:
Thelypodium milleflorum A. Nelson
Publication: Bot. Gaz. 52: 263. 1911. 1911.

Synonyms & Misapplications:
Thelypodium laciniatum (Hook.) Endl. var. milleflorum (A. Nelson) Payson [HC]
Additional Resources:

PNW Herbaria: Specimen records of Thelypodium milleflorum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Thelypodium milleflorum checklist entry.

E-Flora BC: Thelypodium milleflorum atlas page.

CalPhotos: Thelypodium milleflorum photos.

USDA Plants: Thelypodium milleflorum information.

18 photographs:
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