Page authors: David Giblin, Don Knoke
Cymopterus terebinthinus
turpentine spring parsley

Distribution: Occurring east of the Cascades crest in Washington; north-central Washington to northeast Oregon, east to western Idaho.

Habitat: Sand dunes and other dry, open areas at low elevations.

Flowers: April-June

Origin: Native

Conservation Status: Not of concern


Glabrous, mildly aromatic perennial from a branched, woody base and stout taproot, the stems 10-60 cm. tall including the long, terminal peduncle.


Leaves numerous, petiolate, chiefly basal, the blade 3-18 cm. long, broadly ovate in outline, from half as wide to fully as wide as long; leaf blade ternate-pinnately dissected, with numerous small and crowded ultimate segments.


Inflorescence a compound umbel, the rays elongating unequally, 1.5-7 cm. long; involucre wanting; involucel of narrow, green bractlets 2-6 mm. long; calyx teeth 0.5-1.5 mm. long, pointed, greenish; flowers yellow.


Fruit ovoid-oblong, somewhat flattened, with lateral wings equaling the body and dorsal wings only slightly smaller.

Accepted Name:
Cymopterus terebinthinus (Hook.) Torr. & A. Gray
Publication: Fl. N. Amer. (Torr. & A. Gray) 1(4): 624. 1840.

Synonyms & Misapplications:
Cymopterus terebinthinus (Hook.) Torr. & A. Gray var. terebinthinus [HC, IMF3]
Pteryxia terebenthina (Hook.) Coult. & Rose
Pteryxia terebinthina (Hook.) J.M. Coult. & Rose
Pteryxia terebinthina (Hook.) J.M. Coult. & Rose var. terebinthina
Additional Resources:

PNW Herbaria: Specimen records of Cymopterus terebinthinus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Cymopterus terebinthinus checklist entry.

E-Flora BC: Cymopterus terebinthinus atlas page.

CalPhotos: Cymopterus terebinthinus photos.

USDA Plants: Cymopterus terebinthinus information.

37 photographs:
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