All Floras      Advanced Search
FOC Vol. 22 Page 8, 38 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 22 | Poaceae

2. Thyrsostachys Gamble, Indian Forester. 20: 1. 1894.

泰竹属 tai zhu shu

Authors: De-Zhu Li & Chris Stapleton

Arborescent bamboos, moderately sized; clumps very dense. Rhizomes short necked, pachymorph. Culms unicaespitose, erect; internodes terete. Branches several to many, 1 dominant. Culm sheaths persistent, thickly papery; ligule short; auricles absent or small without bristles; blade recurved or erect, triangular. Leaf sheath blade small to moderate-sized; ligule short; auricles absent. Inflorescence iterauctant, fully bracteate, comprising a cluster of 1–3 fertile pseudospikelets and 1 or 2 sterile ones subtended by a spathiform 2-keeled prophyll, sessile upon a branch node. Pseudospikelets with prophyll, 1–3 florets plus a fertile terminal one and a rachilla extension, falling together, not disarticulating; rachilla hairy. Glumes 2–4; lemma papery; palea 2-cleft for ca. 1/3 of its length; lodicules absent to 3, ciliate. Stamens 6, long exserted; anthers apiculate. Ovary turbinate, stalked; style long; stigmas 1–3, feathery. Caryopsis terete, smooth, glabrous, with persistent style base. 2n = 76*.

Two species: China, Myanmar, Thailand; two species in China.

1 Culm sheath apically straight-truncate; leaf blade 17–20 × 1.2–2 cm; spikelets 1.5–2.5 cm; culms densely caespitose   1 T. oliveri
+ Culm sheath apically triangular-truncate; leaf blade 7–15 × 0.7–1.2 cm; spikelets 1.2–1.4 cm; culms very densely caespitose   2 T. siamensis

Lower Taxa


Related Objects  
  • Thyrsostachys.pdf
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |