Page author: David Giblin
Solanum triflorum
cut-leaf nightshade

Distribution: East of the Cascades in Washington; widespread throughout North America, except eastern U.S.

Habitat: Weedy native in fields and roadsides, often in undisturbed sites at low to moderate elevations.

Flowers: July-August

Origin: Introduced

Growth Duration: Annual

Conservation Status: Not of concern


Fetid annual, branched from the base, the branches 1-6 dm. long, decumbent; herbage sparsely short-hairy.


Leaves short-petiolate, pinnately lobed, the blade 2-5 cm. long and 1-3 cm. wide, the rachis about equal in length to the lobes.


Inflorescence of several ascending, stout, few-flowered peduncles, 0.5-2.5 cm. long, attached along the stem or opposite the leaves, the pedicels drooping, clustered; calyx tube short, the 5 narrow lobes unequal, up to 6 mm. long at maturity, the tips reflexed; corolla white, rotate, 5-9 mm. wide, the 5 lobes deeply divided; stamens 5, the anthers prominent, yellow; style solitary; ovary superior.


Fruit a greenish, globose berry, 9-14 mm. thick.

Accepted Name:
Solanum triflorum Nutt.
Publication: Gen. N. Amer. Pl. 1: 128. 1818.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Solanum triflorum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Solanum triflorum checklist entry.

E-Flora BC: Solanum triflorum atlas page.

CalPhotos: Solanum triflorum photos.

USDA Plants: Solanum triflorum information.

23 photographs:
Group by