Phyllostachys Siebold & Zucc.

Ruiz-Sanchez, Eduardo, Clark, Lynn G., Londoño, Ximena, Mejía-Saulés, Teresa & Rodríguez, Gilberto Cortés, 2015, Morphological keys to the genera and species of bamboos (Poaceae: Bambusoideae) of Mexico, Phytotaxa 236 (1), pp. 1-24 : 19

Phyllostachys Siebold & Zucc.

Rhizomes leptomorph; culms hollow, 3–15 m, 1–15 cm in diameter, erect; culm leaf sheaths well developed, glabrous, auricles absent, fimbriae absent, oral setae absent; culm leaf blades reflexed, deciduous; branching intravaginal; node with two subequal, divergent branches, thorns absent, supra- and infra-nodal bands of short soft white hairs absent; internodes profoundly flattened or grooved on one side above branches; synflorescences racemose; pseudospikelets comprising 1 subtending bract, 2-keeled prophyll, 0 or 1 gemmiparous bract, 2–6 enlarged scaly bracts and 2–7 spathiform bracts, 2–7 florets, glabrous; palea 2-keeled, lemma glabrous, lodicules 3, stamens 3; fruit a basic caryopsis ( Fig. 3A–F ). Introduced Asiatic genus ( Fig. 9C–D ).

1. Culms 3–7 m, 1–5 cm in diameter; internodes 15–30 cm, usually some nodes strongly shortened and commonly ventricose at the base of the culm....................................................................................................................................................................... P. aurea

1. Culms 6–15 m, 6–15 cm in diameter; internodes 20–40 cm, not shortened or ventricose at basal nodes .................. P. bambusoides

Figures

FIGURE 3. A–B. Rhipidocladum pittieri. A. Mid-culm fan-shaped (apsidate) bud. B. Branch complement. C–D. Rhipidocladum bartletii. A. Clump showing culms. B. Foliage leaves. E–F. Rhipidocladum racemiflorum. E. Foliage leaves. F. Synflorescences and spikelets. Photos by E. Ruiz-Sanchez.

FIGURE 9. Cultived woody bamboos. A–B. Bambusa vulgaris var. vittata, yellow culms with green stripes. B. Guadua angustifolia culms. C. Phyllostachys aurea, showing ventricose basal nodes.. D. Phyllostachys bambusoides, diffuse culms. E. Bambusa oldhamii, showing glaucous culms and culm leaves. Photos by E. Ruiz-Sanchez.