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Borinda perlonga 

old culm sheath apex culm sheath base and level culm node leaf sheath
leaf sheath with more oral setae sheath nearly twice internode length bud culm sheath oral setae branching
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see photos at BambooWeb
lush foliage from heavy branching
see origin in Google Earth
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

Long-sheathed Borinda

Borinda perlonga (Hsueh & T. P. Yi) Stapleton, Kew Bull. 53(2): 457. 1998

 Synonym: Fargesia perlonga Hsueh & T. P. Yi, J. Bamboo Res. 7(2): 79. 1988.   

  Missouri Botanical Garden's Tropicos Database of Names  TROPICOS

    International Plant Names Index   IPNI

   Multilingual Multiscript Plant Names Database  MMPND


Plants forming dense clumps. Rhizomes pachymorph, neck 2--5 cm long. Culms  to 5 m, to 2 cm in diam., pendulous; internodes to 25 cm, terete, lightly blue-grey waxy at first, becoming pale green, longitudinal ridges very prominent, distally softly white appressed short-setose, wall very thin; nodes level, supra-nodal ridge absent, sheath scar thin; branches initially (3)-5-(7), strong, rebranching with up to 5 orders to give dense foliage. Culm sheaths very persistent, much longer than internode, papery, longitudinal ribs prominent, light green, light brown setose to base, apex narrow and loose, margins distally densely ciliate; auricles small, irregular; oral setae several, erect, 6-12mm; ligule to 3 mm, truncate or depressed, finely ciliate, tomentose; blade linear, glabrous, reflexed, quite persistent, margins usually glabrous. Leaves 4--8 per ultimate branch; sheath glabrous, margins glabrous; auricles absent; oral setae few to several, erect, wavy, ca. 5--8 mm; ligule convex, to 2 mm, tomentose; external ligule shortly white-ciliate; blade broadly lanceolate, to 16 2 cm, fresh mid-green, glabrous, base rounded, secondary veins 4-paired, margins distally spinescent-serrulate, transverse veins distinct. Synflorescence unknown. Name perlonga Latin, ‘very long’.

This species is characterised by very long, thin, persistent culm sheaths, as well as level nodes, and dense cascading foliage arising from 4-6 orders of branching, instead of the more modest degree of rebranching seen in most other Borinda species.






Source in Google Earth First introduced into the UK from 2,600m on Cang Shan in Yunnan Province of China in 1995 (Stapleton 1054) as Borinda perlonga, and in 1997 to the US and EU from the same mountain at 2950m, identified as Fargesia hygrophila. Similar plants were also sent to Holland (Yunnan 6) from an unknown locality, probably near Lushui. These 3 collections, all with very long culm sheaths, are kept under this name until further work on them has been undertaken. Further details are required from the cultivated plants, from the types representing the names, and from living plants in the localities where the types were collected. However, it would appear likely that Borinda hygrophila will be the correct name for the Cang Shan bamboo illustrated here, when that name has been published.

[albocerea] [angustissima] [contracta] [frigidorum] [frigidorum aff] [macclureana] [nujiangensis] [papyrifera] [perlonga] [utilis]