Flora of the Hawaiian Islands
   Rosaceae -- The Rose Family Bibliography
      Rubus rosifolius

Common name(s): blackberry, raspberry, `akala, `akalakala, Mauritius raspberry, ola`a, thimbleberry
General Information
DistributionNative to Asia, now widely naturalized in tropical areas.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.

Shrubs or subshrubs; stems erect, arching, or trailing, 10-20 dm long, moderately to sparsely pilose, sparsely covered with recurved prickles 1-4 mm long with elongate bases.
Leaves pinnately compound, leaflets 7 or sometimes only 5 in upper leaves, broadly lanceolate, 1.5-8 cm long, (0.6-)1-3 cm wide, the terminal one slightly larger, sparsely pilose to glabrate and also sometimes glandular dotted, margins doubly serrate, petiolules 0.1-0.3 cm long, rachis, petiolules, and petioles pilose, rachis and petioles also usually covered with small recurved prickles, stipules filiform, 0.6-0.8 cm long.
Flowers solitary or sometimes 2-3, terminal or axillary; sepals lanceolate, 8-15 mm long, both surfaces finely tomentose, apex long attenuate; petals white, obovate, 10-20 mm long.
Fruit red at maturity, subglobose, 2-3.5 cm long, easily deciduous from the receptacle.