Page authors: Don Knoke, David Giblin
Orobanche minor
hellroot
Specimens
Photos

Distribution: Occurring in scattered locations west of the Cascades crest in Washington; Washington to Oregon, and reported from Idaho; also in Texas and along the East Coast of the U.S.

Habitat: Lawns, fields, pastures, forest edge, and other grassy areas at low elevations.

Flowers: May-July

Origin: Introduced from Europe

Conservation Status: Not of concern

Description:
General:

Fleshy root parasites, the plants 1.5-5 dm. tall, strict and simple from a bulbous-thickened base, somewhat glandular-pubescent throughout.

Leaves:

Leaves alternate, reduced to a few bracts.

Flowers:

Inflorescence spicate, not dense, the axis exposed in the lower part; flowers subtended by a bract but without bractlets; calyx split to the base, forming 2 lateral segments, these unequally forked; corolla white or yellowish, marked with violet, 10-15 mm. long; anthers glabrous.

Fruits:

Capsule 2-celled.

Accepted Name:
Orobanche minor Sm.
Publication: Engl. Bot. 6: pl. 422. 1797.

Synonyms & Misapplications:
Orobanche columbiana
Additional Resources:

PNW Herbaria: Specimen records of Orobanche minor in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Orobanche minor checklist entry.

E-Flora BC: Orobanche minor atlas page.

CalPhotos: Orobanche minor photos.

USDA Plants: Orobanche minor information.

16 photographs:
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