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FOC | Family List | FOC Vol. 22 | Poaceae | Phyllostachys

35. Phyllostachys reticulata (Ruprecht) K. Koch, Dendrologie. 2(2): 356. 1873.

桂竹 gui zhu

Phyllostachys reticulata
Phyllostachys reticulata

Bambusa reticulata Ruprecht, Bambuseae, 58. 1839; Phyllostachys bambusoides Siebold & Zuccarini; P. lithophila Hayata; P. megastachya Steudel; P. pinyanensis T. H. Wen; P. quilioi Rivière & C. Rivière.

Culms to 20 m, to ca. 15 cm in diam.; internodes to 40 cm, not white powdery or initially faintly so below nodes, glabrous; wall ca. 5 mm thick; nodal ridge slightly more prominent than sheath scar. Culm sheaths yellow-brown, sometimes tinged with green or purple, with dense, variably sized, purple-brown spots, glabrous or sparsely deciduously erectly brown hairy; auricles deciduous, sometimes absent, purple-brown, small to large and falcate; oral setae radiate; ligule brown or green, arcuate, ciliate; blade reflexed, green in center, purple or brown on both sides, pale yellow along margins, linear, flat or sometimes slightly wavy at apex. Leaves 2–4 per ultimate branch; auricles suborbicular; oral setae well developed, radiate; ligule obviously exserted, arcuate or sometimes truncate; blade 5.5–15 × 1.5–2.5 cm. Flowering branchlets spicate, 5–8(–10) cm, scaly bracts 3–5; spathes 6–8; auricles small or inconspicuous, oral setae usually developed, blade orbicular-ovate to linear-lanceolate, base rounded, apex subulate-acuminate. Pseudospikelets 1 or 2(or 3) per spathe, absent from basal 1–3 deciduous spathes. Spikelets lanceolate, 2.5–3 cm; florets 1 or 2(or 3). Glumes absent or 1; rachilla pubescent, extension glabrous, terminated with a rudimentary floret; lemma 2–2.5 cm, sparsely puberulent, apex aristulate-acuminate; palea slightly shorter than lemma, glabrous except for keels or pubescent at apex; lodicules rhomboid-oblong, 3.5–4 cm. Anthers 1.1–1.4 cm. Stigmas 3. New shoots late May. 2n = 48*.

Open or degraded forests from Yangtze to Wuling Mountains, widely planted; below 1800 m. Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Japan].

This species is planted on a commercial scale for the large culms, which are widely used for building materials, flooring, and furniture and are also split for weaving various bamboo articles. The shoots are bitter.


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