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Hibanobambusa tranquillans

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see photos at BambooWeb
'Shiroshima'
see origin in Google Earth
see account in Index to Japanese Bambusaceae
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

Mt Hiba Bamboo

Hibanobambusa tranquillans (Koidz.) Maruy. & H. Okamura, Rep. Fuji Bamboo Gdn. 16: 30. 1971.

 Synonym: Semiarundinaria tranquillans Koidz., Acta Phytotaxonomica et Geobotanica 10: 314. 1941; Phyllostachys tranquillans (Koidz.) Muroi; X Phyllosasa tranquillans (Koidz.) Demoly

  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

Culms to 4 m tall, to 2.5 cm thick; internodes to 30 cm, smooth and not finely ridged, glabrous, with light wax at first, becoming glossy; walls thick, to 4 mm; nodes with moderately to prominently raised supra-nodal ridge, sheath scar slightly raised, branches at mid-culm usually solitary. Culm sheaths to 18(--25) cm long, coriaceous, apically rounded-truncate, proximally initially sparsely to quite densely long white-pilose, distally glabrous, hairs erect, external margin membranous, white-ciliate; auricles oblong to falcate, to 3 mm, deflexed; oral setae spreading, white, to 15mm; ligule, ca. 1 mm, entire, glabrous; blade to 5 cm, deflexed, lanceolate. Leaf sheaths shortly pilose, apically glabrous external margin ciliate; auricles ovate, to 5 mm, deflexed; oral setae  radiating, to 10 mm, straight, finely scabrous, distally coloured; ligule ca. 2 mm, rounded, entire, glabrous; blade broad, to 25  cm long, to 5 cm wide. Name from Latin, ‘tranquillus’ for the static foliage.

 

‘Shiroshima’ has leaf blades with variable pale cream to light green stripes occurring rather sporadically and developing best in bright sunlight. ‘Kimmei’ has less leaf variegation but also has culms with yellow and green stripes.

While it seems very likely that this bamboo is the result of hybridisation between species from 2 different genera, the exact parentage and the timing of the hybridisation are disputed, so that it is difficult to produce a stable hybrid generic name. In any case, most bamboos seem to be the result of hybridisation at some time, as this is very common in the bamboos. Consequently it is placed here in Hibanobambusa.

 

 

see origin in Google Earth Introduced from Mt Hiba, Hiroshima Prefecture, Honshu, Japan to France in 1980.

[tranquillans ]