Rubus urticifolius Poir.

Rubus trichomallus Schlecht. Linnaea 13: 268. 1839
Rubus urticaefolius Focke, Abh. Nat. Ver. Bremen 4: 149. 1874. Not R, urticaefolius Poir. 1804. Rubus costaricanus Kuntze, Rev. Gen. 220, in part. 1891.
Stem perennial, several meters high, 8-15 mm. thick, somewhat round-angled, densely pubescent with grayish short hairs and copiously bristly with long, brown, non-glandular hairs, sparingly armed with recurved flat prickles with pubescent bases ; some leaves of the stem and shoots digitately quinate, the rest ternate; stipules subulate, 5-8 mm. long; petioles 5-15 cm. long, pubescent, setose, and densely prickly; petiolules 2-7 cm. long; leaflets ovate, short-acuminate at the apex, obtuse, rounded or subcordate at the base, sharply and finely double-serrate, 7-12 cm. long, densely pubescent on both sides, dark-green and almost velutinous above, yellowish or grayish-subtomentose beneath; most of the leaves, especially those of the flowering stems, ternate, otherwise similar; petiolule of the middle leaflet 2-3 cm. long, those of the lateral leaflets 5-10 mm. long; panicles terminal and axillary, with short ascending branches, dense; bracts ovate-lanceolate, tomentose; sepals lanceolate, about 5 mm. long, with a short subulate acumination, appressed to the young fruit, but spreading in age, tomentose and sparingly setose; petals obovate, scarcely exceeding the sepals; fruit small, reddish but when fully ripe almost black; drupelets glabrous.
Type locality: Hacienda de la L,aguna» Vera Cruz. Distribution: From southern Mexico to Panama and Colombia.

Rubus trichomallus is a Latin American species of brambles in the rose family. It grows in southern Mexico, Colombia, and Central America.

Rubus trichomallus is a shrub several meters tall, with curved prickles and copious hairs. Leaves are compound with 3 or 5 leaflets. Fruits are red at first, nearly black when fully ripe.