Bolo, bongsina, buhong-china, buling-china, kauayang china, kauayang-puti, kauayang-sina (Tag.); book (P. Bis.); buton (C. Bis.); kabolian (Bik.); patong (Bik., Bis., Sul.); botong (Bis.).
Gigantochloa levis (Blanco) Merr.
Culms close together forming clumps of more or less 1 m diameter comprising 10-22 culms, up to 20 m tall, and can reash as high as 30 Nodes somewhat swollen, covered with appressed brown hairs, the lower ones near the base bearing short aerial roots. Internodes 15-30 cm long, 6-9 cm diameter up to 20 cm as reported, hollow walls 1-3 cm thick. Culm sheaths broadly triangular with narrow more or less straight top, outer surface densely hairy, dark-brown, loose and spreading, almost all over the back when young; auricles with 4 mm bristles; ligule 2-4 mm high, edge toothed; blade reflexed, falling lanceolate, narrow at the base. Branches 5-12 per node, up to 2.3 m long, developing both intra- and extravaginally at all nodes, with one dominant branch. Leaves up to 12 on each branchlet, blades oblong lanceolate, 20-40 cm long, 7-10 cm wide, lower surface shortly pubescent, the upper glabrous, base subcordate, margins weakly scabrous, tip acute; petiole 3-10 mm long, glabrous; sheaths up to 18 cm long, glabrous or towards the tip with hairs along margins and tip; auricles inconspicuous; ligule short, irregularly denticulate, glabrous. Inflorescences and fruits not seen.
All clumps cultivated. Clumps abandoned by farmers for a long time may appear naturalized to some extent
Culms bottom, mid and top portion for musical instruments. Also used in building construction, basketry and furniture. Excellent edible shoots.