Rubus recurvans Blanchard

Rubus recurvans Blanchard, Rhodora 6: 224. 1904
Rubus arundelanus Blanchard, Rhodora 8: 176. 1906. Rubus Jeckylanus Blanchard, Rhodora 8: 177. 1906.
Stem biennial, terete, glabrous, armed with rather weak, straight, terete, slightly retrorse prickles, 1-2.5 m. long, at first often erect, later recurving and often rooting at the tips; leaves of the turions 5-foliolate; stipules subulate, 1-1.5 cm. long; petioles, petiolules, and mid veins rather sparingly pubescent and armed with retrorse flattened prickles ; leaflets glabrate or with scattered hairs above, densely and softly pilose beneath, yellowish-green, coarsely and doubly serrate, with lanceolate teeth, usually rather thin, abruptly long-acuminate; median leaflet broadly ovate, 7-12 cm. long, rounded or subcordate at the base, its petiolule 1-3 cm. long; lateral leaflets ovate, oval, or lanceolate, usually subsessile; floral branches 1—3 dm. long, villous, and somewhat prickly, not glandular; leaves 3-foliolate or the upper unif oliolate ; leaflets rhombic, obovate, or oblanceolate, short-acuminate at the apex, usually cuneate at the base, 4-7 cm. long, incisedly double-serrate, with lanceolate teeth; inflorescence a few-flowered corymb, leafy-bracted below; peduncles and pedicels villous; sepals ovate, 7-8 mm. long, abruptly acuminate, villous without, tomentose within; petals white, 12-15 mm. long, elliptic; fruit elongate, 1-1.5 cm. long, sweet; drupelets large, glabrous.
Type locality: Southern Vermont.
Distribution: Maine to Connecticut and northern New York.

Rubus recurvans is a North American species of highbush blackberry in section Arguti of the genus Rubus, a member of the rose family. It is found in eastern and central Canada (Québec, Ontario, Nova Scotia) and in the eastern and north-central United States (from Maine west to Minnesota, south as far as Missouri, the Ohio River, and Virginia). It is commonly known as recurved blackberry, referring to the habit of the first-year canes that grow upright before recurving rather than forming a distinct arch.