Dendrocalamus jianshuiensis
Dendrocalamus jianshuiensis Hsueh & D. Z. Li, J. Bamboo Res. 7 (3), 1988: 11, 17; J. Bamboo Res. 7 (4), 1988: 14.
Synonyms: Sinocalamus jianshuiensis (Hsueh & D. Z. Li) W. T. Lin, Bamboo Res. No. 42, 1990: 6.
Thai name: No known records.
Chinese name: 建水龙竹 (jiàn shuǐ lóng zhú).
English names: Niha's Bamboo; Laotian White Bamboo.
Distribution: THAILAND (North): introduced, in cultivation, rare. — CHINA (South): Yunnan; at 850–1,510 m altitude. — USA: in cultivation, said to be raised from seed (South. Calif. Bamboo 17(6), 2007: 3).
Culm size: Height 17–18 m, diameter 10–12 cm.
Descriptions:
(1) "… Culms 17–18 m, 10–12 cm in diam.; internodes 25–37 cm; wall 1.2–2 cm thick; branching from 8th–9th node up, central branch dominant. Culm sheaths deciduous, about as long as internodes, thickly leathery, apex truncate; auricles small, 0.5–2 cm; ligule 1–4 mm, serrulate; blade reflexed, 10–20 × 3.5–7.5 cm. Leaf sheaths glabrous; ligule ca. 2 mm; blade 20–38 × 3.5–8.5 cm. … [flowers known] Fruit unknown." — Flora of China, accessed 14 Sep. 2019 [#1303].
(2) "… caespitose. Rhizomes short; pachymorph. Culms erect; pendulous at the tip; 1700–1800 cm long; 100–120 mm diam.; woody; without nodal roots, or rooting from lower nodes. Culm-internodes terete; hollow; 25–37 cm long. Lateral branches dendroid. Branch complement many. Culm-sheaths deciduous; 1 length of internode; coriaceous; truncate at apex; auriculate; with 1 mm high auricles; with 5–20 mm wide auricles. Culm-sheath ligule 1–4 mm high; dentate. Culm-sheath blade triangular; reflexed; 10–20 cm long; 35–75 mm wide; pubescent; acuminate. Leaves 9 per branch. Leaf-sheaths glabrous on surface. Leaf-sheath oral hairs ciliate. Ligule an eciliate membrane; 2 mm long. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades oblong; 20–30 cm long; 35–85 mm wide. Leaf-blade venation with 18–26 secondary veins. Leaf-blade apex acuminate. … [Flowers and seeds described]." — Kew GrassBase [#1335].
Images: Photos in BambooWeb.info; Dave'sGarden; ABS-SoCal (internode).
Specimens: BS-0326 [BBG], BS-0459 [-] (living plants), received from the U.S.A. in 2009.
Uses: Culms for construction; plants for landscaping.
Cultivation requirements: Easy and fast-growing; in part shade to full sun, sandy loam to clay loam, normal moisture-retentive to moist soil with good drainage. Tolerates some drought and wind.