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Chimonobambusa szechuanensis

culm node leaf sheaths
foliage reddened culm &  branches branch complement swollen branch nodes
see photos at BambooWeb
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See type specimen in Kew Herbarium

  Type Specimen Image

  (Herbarium Catalogue)

exact origin unknown
see account in Flora of China
see listing in ABS Species & Sources List
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See description in Kew's GrassBase - The Online World Grass Flora
See description in Kew's GrassBase - The Online World Grass Flora

Szechuan Winter Bamboo

Chimonobambusa szechuanensis (Rendle) Keng f., Techn. Bull. Natl. Forest. Res. Bur. 8: 15 1948.

 Synonyms: Arundinaria szechuanensis Rendle; Oreocalamus szechuanensis (Rendle) Keng

  Missouri Botanical Garden's Tropicos Database of Names  TROPICOS

    International Plant Names Index   IPNI

   Multilingual Multiscript Plant Names Database  MMPND

 Electronic Plant Identification CentreElectronic Plant Identification Centre  KEW

Rhizomes to 1 m or longer, remaining below ground. Culms 2–6 m tall, 1–2 cm in diam., erect or nodding, diffuse and solitary in open spreading thickets; nodes slightly raised, lower nodes only with roots, some thorny, glabrous; internodes terete or basally slightly square, to 22 cm, grooved and ridged above branches, smooth, no hairs, matt to silky mid green or purple after exposure to sun. Branches 3 per node. Culm sheaths shorter than internodes, quickly deciduous, thickly papery, glabrous, not spotted, main veins initially purple, transverse veins obscure, only prominent distally, margins shortly ciliate; ligule 0.5–1 mm, shortly ciliate; blade subulate-triangular, 2–5 mm, articulate. Leaf sheaths leathery, glabrous, deciduous, red-purple after exposure, margin shortly ciliate: ligule 1–1.5 mm, truncate, tomentose; auricles absent; oral setae 1-4, pale to purple, stout, 3–5 mm, on basal sheaths more and spreading, on proximal sheaths fewer and erect; blades 1–3 per ultimate branch, lanceolate to broadly lanceolate, to 18 2.5 cm, secondary veins 4–6-paired, conspicuously tessellate, abaxial and adaxial glabrous, petiole glabrous. Name from Szechuan, the old spelling of the province, now called Sichuan, in which it was discovered.

A striking species with broad leaves and purple tinges to exposed culms and branches.

Chimonobambusa sichuanensis, a similar bamboo from 100 miles to the north, has a confusingly similar name. Neither of these species have been described in depth from Chinese collections and the distinctions between them remain vague, although C. sichuanensis is meant to have more persistent culm sheaths with initially scabrous bases. About 20 species of Chimonobambusa have been described from Sichuan Province.

 

 

 

 

 

 

 

exact origin unknown The type collection of Chimonobambusa szechuanensis was made by E.H. Wilson on Wa Shan, and plants introduced into Europe and the US are from nearby Emei Shan. Bamboo on Wa Shan.

[marmorea] [quadrangularis] [szechuanensis] [tumidissinoda]