Reddish Bamboo

Culms ca. 3.5 m, ca. 2.5 cm in diam.; internodes dark green, 22–31 cm, initially thinly white powdery, glabrous; wall ca. 2 mm; nodal ridge raised, more prominent than sheath scar; sheath scar flared, margin with a dense ring of tardily deciduous, orange-red hairs. Culm sheaths light green, about as long as or slightly longer than internodes, middle to distal margins densely dark purple ciliate, base edged with orange-red hairs; auricles falcate, ± connected with sheath blade; ligule brown, truncate or slightly arcuate, long ciliate; blade erect, purple-green, broadly to narrowly triangular, flat or weakly sinuous, sometimes slightly navicular, base about as wide as ligule. Leaves 2 or 3 per ultimate branch; auricles small or inconspicuous; oral setae purple, blade linear-lanceolate, abaxially pilose especially proximally. Flowering branchlets capitate, 1–1.5 cm, with 4 or 5 scaly bracts. Spathes 2–4, 0.6–1 cm, pubescent; auricles and oral setae absent; blade minute, subulate or inconspicuous, rarely narrowly ovate-lanceolate. Pseudospikelets (1 or)2(or 3) per spathe. Spikelets ca. 1.1 cm; florets 1–3, terminal one sterile and reduced. Glumes (absent or)1–3, distally hairy; rachilla pubescent; lemma ca. 1 cm, abaxially centrally and distally densely villous; lodicules oblanceolate or elliptic, ca. 2.5 mm. Anthers ca. 4 mm. Stigmas 3. New shoots mid to late Apr, fl. Sep.

* Scrub, banks of gullies. Guangxi, Guizhou; cultivated in Henan.

Phyllostachys aristata W. T. Lin; P. aurita J. L. Lu; Sino-bambusa fimbriata T. H. Wen.

Perennials, Terrestrial, not aquatic, Rhizomes present, Rhizome elongate, creeping, stems distant, Stems woody, Stems nodes swollen or brittle, Stems erect or ascending, Stems solitary, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stems compressed, flattened, or sulcate, Stems branching above base or distally at nodes, Stem internodes hollow, Stems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves pseudo-petiolate, petiole attached to sheath, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath and blade differentiated, Leaves borne on branches, Leaf blades lanceolate, Leaves with distinct crossveins, net-like transverse veins, Leaf blade auriculate, Leaf blades 1-2 cm wide, Leaf blades 2 or more cm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Leaf blades scabrous, roughened, or wrinkled, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Inflorescence lateral or axillary, Inflorescence with 2 or more spikes, fascicles, glomerules, heads, or clusters per culm, Inflorescence single raceme, fascicle or spike, Inflorescence a single spikelet, Flowers bisexual, Spikelets sessile or subsessile, Spikelets laterally compressed, Inflorescence or spikelets partially hidden in leaf sheaths, subtended by spatheole, Spikelet less than 3 mm wide, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 1 clearly present, the other greatly reduced or absent, Glumes shorter than adjacent lemma, Glumes 1 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 8-15 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Palea membranous, hyaline, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 3 or 3-fid, deeply 3-branched, Stigmas 3, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

Phyllostachys rubromarginata, the reddish bamboo or red margin bamboo, is a species of Phyllostachys bamboo, native to Central China, specifically Guangxi and Guizhou.