Page author: David Giblin
Pterospora andromedea
woodland pinedrops

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Great Plains and northeastern North America

Habitat: Common in coniferous forests, especially where ponderosa is dominant.

Flowers: June-August

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern


Myco-heterotrophic herbs with simple stems 3-10 dm. tall, the stems reddish-brown, glandular-hairy and fleshy when in bloom, but over-wintering as dry, fibrous stalks.


Leaves alternate, small and scale-like, few on the upper stem.


Flowers many in an elongated raceme, often equal to the rest of the stem; pedicels recurved, 5-15 mm. long, from the axils of linear bracts; calyx deeply 5-parted, glandular-hairy, about half the length of the corolla; corolla entire, pale yellow, glabrous, broadly urn-shaped, 5-8 mm. long, the 5 short lobes spreading; stamens 10, the anthers ovoid with 2 dorsal, recurved awns; ovary superior.


Capsule 5-celled, depressed-globose, 8-12 mm. broad.

Accepted Name:
Pterospora andromedea Nutt.
Publication: Gen. N. Amer. Pl. 1: 269. 1818.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Pterospora andromedea in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Pterospora andromedea checklist entry.

OregonFlora: Pterospora andromedea information.

E-Flora BC: Pterospora andromedea atlas page.

CalPhotos: Pterospora andromedea photos.

USDA Plants: Pterospora andromedea information.

64 photographs:
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