Rubus nigerrimus
dark raspberry, northwest raspberry
WTU specimens
Other herbaria

Distribution: Along the Snake River in Whitman County, Washington.

Habitat: Moist hillsides, usually along streams.

Flowers: May - June

Origin: Native

Conservation Status: Threatened in Washington (WANHP)

Description:
General:

Strong, deciduous perennial, the primocanes erect to clambering, glabrous, greenish and glaucous, up to 5 m. long, the prickles straight and flattened; flowering stems trailing, up to 5 m. long, armed with flattened, hooked prickles.

Leaves:

Leaves green and glabrous on both surfaces, trifoliate on the flowering stems but 5- foliate on the canes, the lower 2 leaflets sessile; leaflets ovate-lanceolate, doubly lobed-serrate.

Flowers:

Flowers 1-5 in small, loose clusters; sepals 5, spreading, 5-8 mm. long; petals white, elliptic, 4-7 mm. long, often more than 5; stamens 75-100, pistils 25-40.

Fruits:

Drupelets barely coalescent, blackish, strongly roughened, rather dry, free from the receptacle.

Accepted Name:
Rubus nigerrimus (Greene) Rydb.
Publication: N. Amer. Fl. 22(5): 445. 1913.

Synonyms & Misapplications:
Rubus leucodermis Douglas ex Torr. & A. Gray var. nigerrimus (Greene) H. St. John
Additional Resources:

PNW Herbaria: Specimen records of Rubus nigerrimus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Rubus nigerrimus checklist entry.

E-Flora BC: Rubus nigerrimus atlas page.

CalPhotos: Rubus nigerrimus photos.

USDA Plants: Rubus nigerrimus information.

2 photographs:
Group by