Gigantochloa parvifolia

Synonyms: Oxytenanthera parvifolia Brandis ex Gamble, Ann. Roy. Bot. Gard. (Calcutta) 7, 1896: 72; Pseudoxytenanthera parvifolia (Brandis ex Gamble) T. Q. Nguyen, Bot. Zhurn. (Moscow & Leningrad) 76 (7), 1991: 993.

Thai name: no known records.

Burmese name: Tseikdoo-mindoo.

Distribution: THAILAND (Central): Phitsanulok Province: นครไทย Nakhon Thai District. The species was also found in Cambodia in the borderland area with Thailand and is therefore likely to be found in the provinces of Prachin Buri and Trat in eastern Thailand (Classification of Bamboo, 2012: no. 22 [#1223]). — MYANMAR. — INDIA (North-East). — VIETNAM. — CAMBODIA.

Culm size: Height not recorded.

Descriptions:

(1) "A large-sized bamboo with culms up to 7.6 cm in diameter. Culm-sheaths 20.3-22.8 cm long and 20.3-25 cm broad, striate, rounded at the top and truncate, appressed brown hairy on the back, imperfect blade 5-7.6 cm long and ca. 2.5 cm broad, ovate-acuminate, decurrent on the top of the sheath in a narrow, naked, slightly auricled band, base rounded; ligules rather broad, dentate. Leaves linear-lanceolate 7.6-10 cm long and ca. 1.2 cm broad, rounded at base, apex with a short subulate twisted point, marginal veins scabrous above, pale and slightly pubescent beneath. Scabrous on one or both margins, leaf sheaths hairy in the beginning, later ending in a prominent callus and furnished with a few deciduous bristles at the top; ligule acute faintly dentate, pubescent. …" — K. K. Seethalakshmi & al., Bamboos of India, 1998: p. 205, as "Oxytenanthera parvifolia" [#1062].

(2) "… Rhizomes short; pachymorph. Culms erect; 15–17 mm diam.; woody. Culm-internodes terete. Lateral branches dendroid. Branch complement several. Culm-sheaths 20–25 cm long; 1 times as long as wide; pubescent; with appressed hairs; with tawny hairs; truncate at apex. Culm-sheath ligule 10–18 mm high; dentate. Culm-sheath blade ovate; 5–8 cm long; 25 mm wide; acuminate. Leaf-sheaths pubescent. Leaf-sheath oral hairs scanty. Ligule an eciliate membrane; pubescent on abaxial surface; erose; acute. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 0.2 cm long. Leaf-blades lanceolate; 7–12 cm long; 12 mm wide. Leaf-blade surface puberulous; hairy abaxially. Leaf-blade margins scabrous … [flowers and seeds described]." — Kew GrassBase, as "Pseudoxytenanthera parvifolia", accessed 12 Oct. 2017 [#1335].

(3) J. S. Gamble, Bambuseae Brit. India, 1896: p. 72, as "Oxytenanthera parvifolia" [#1230].

Images: Line drawing in K. K. Seethalakshmi & al., Bamboos of India, 1998: fig. 65, p. 206 [#1062]; in J. S. Gamble, Bambuseae Brit. India, 1896: p. 72, as "Oxytenanthera parvifolia" [#1230].