Schizostachyum fimbriatum

Synonym: Neohouzeaua fimbriata S. Dransf., R. Pattanavibool & S. Sungkaew, Thai Forest Bull., Bot. 31, 2003: 29, as "Neohouzeoua"; type: Myanmar, R. N. Parker 2733 (holotype, K).

Thai name: Not recorded; Shan name: "Yat-wan".

Distribution: THAILAND (South): Provinces of Ranong and Phang Nga, lowland, common. — MYANMAR (South), abundant; on slopes of secondary growth or forest, from slightly above sea level up to 1,200 m altitude.

Descriptions:

(1) "Scrambling, sympodial bamboo, up to 13 m long. Culms up to 3 cm in diam., internodes about 40 cm long, with relatively thin walls, light green with white wax and dark brown scattered hairs below the nodes, otherwise glabrous and smooth, a thin white membrane found inside the internode. Branches many at each node, of the same size, hairy on sheaths and auricles. Culm leaves 13–16 cm by 6.5–9 cm near the base, covered densely with appressed dark brown hairs, hairs caducous; blades ovate-lanceolate, deflexed, 13–21 cm long, about 12 mm wide near the base, 6 mm at the junction with the sheath, tapering to long tips, glabrous adaxially, hairy abaxially especially near the base; auricles large, deflexed/flared, 21 mm long, 9 mm tall/wide, caducous, with long bristles, bristles 25 mm long; ligule 4 mm long, laciniate. Leaf-blades 26–52 by 6–12 cm, tapering to very long fine tips, up to 3 cm long, base rounded, margins smooth or ciliolate, glabrous, often slightly scabrid towards the apex adaxially, with light brown hairs towards the petiole adaxially, petiole (pseudopetiole) 1 cm long, glabrous or with scattered pale hairs adaxially, base slightly swollen (above the junction with the sheath); sheaths covered with pale hairs, hairs caducous, margins ciliolate, ‘callus’ or outer ligules prominent, 3 mm long/tall; auricles thick or chartaceus, large, flared, 14 mm long, 4 mm high, margins with long curly bristles, bristles about 20 mm long; ligule (inner ligule) very short but with long fimbriae (6 mm long). … [flowers and seeds described]." — S. Dransf. & al., Thai Forest Bull. (Bot.) 31, 2003: 29, as "Neohouzeoua fimbriata" [#1061].

(2) "Habit: Perennial; caespitose. Rhizomes short; pachymorph. Culms scandent; 1300 cm long; 20–30 mm diam.; woody. Culm-internodes terete; hollow; 40 cm long; light green. Lateral branches dendroid. Branch complement many; with subequal branches. Culm-sheaths 13–16 cm long; 2 length of internode; hispid; with appressed hairs; with dark brown hairs; auriculate; with 9 mm high auricles; with 21 mm wide auricles; setose on shoulders; shoulders with 25 mm long hairs. Culm-sheath ligule 4 mm high; lacerate. Culm-sheath blade lanceolate, or narrowly ovate; reflexed; 13–21 cm long; 12 mm wide; pubescent; acuminate. Leaf-sheaths pubescent; outer margin hairy. Leaf-sheath oral hairs setose; curly; 20 mm long. Leaf-sheath auricles falcate; 14 mm long. Ligule an eciliate membrane; 1 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole 1 cm long; petiole glabrous, or pubescent. Leaf-blades ovate; 25–52 cm long; 6–12 mm wide. Leaf-blade surface glabrous; hairless except near base. Leaf-blade margins glabrous, or ciliate. Leaf-blade apex filiform. … [flowers and seeds described]." — Kew GrassBase, as "Neohouzeaua fimbriata", accessed 27 Nov. 2020 [#1335].

Images: Line drawing in S. Dransf. & al., 2003: 33 [#1061]. Photos of type in Kew Herbarium: K000912112 and K000912113 (flowers, leaves).

Uses: Not recorded.

Comments: A living plant (BS-0089) under the name "Neohouzeaua fimbriata" was received from Ranong in 2012. When the plant had gained sufficient size after planting, its characteristics could be checked in more detail in July 2017. It turned out that this bamboo is not Schizostachyum fimbriatum, syn. Neohouzeaua fimbriata, but possibly another, still undescribed species of this genus.