Rubus spectabilis Pursh

Rubus spectabilis Pursh, Fl. Am. Sept. 348. 1814
Rubus sienopetalus Cham.; Choris, Voy. Pitt. Kamteh. 10. 1822. Parmena spectabilis Greene, Leaflets 1: 244. 1906.
Stems perennial, shrubby, 2-5 m. high, glabrous, or pilose when young, with yellowish shreddy bark, unarmed when young or with small, straight prickles with depressed bases; leaves usually 3-foliolate; stipules linear-lanceolate or subulate, often 1 cm. long; petioles 4-6 cm. long, unarmed or with very few prickles, sparingly pilose, slender; leaflets thin, green and sparingly pubescent on both sides, incisedly double r serrate with lanceolate teeth, often 2-3lobed; terminal leaflet 4-10 cm. long, often deltoidor rhombic-ovate, acuminate at the apex, truncate or cuneate at the base; petiolule 1-3 cm. long; lateral veins 8-12 on each side; lateral leaflets obliquely ovate, subsessile; flowers mostly solitary, sometimes 2-4; pedicels silky-villous, sometimes glandular-hispid; sepals ovate, silky, abruptly short-acuminate, about 1 cm. long, in fruit reflexed; petals reddish-purple or rose-colored, elliptic, acute or obtuse, 15-20 mm. long; stamens numerous; filaments somewhat dilated, linear; fruit large, ovoid, 15-20 mm. long, 12-15 mm. thick, red or yellow; drupelets numerous, falling off together, glabrous; styles long; putamen strongly reticulate.
Type locality: Banks of the Columbia.
Distribution: Along streams, from southern Alaska to Idaho and California.