Bambusa duriuscula (Bambusa duriuscula)
Description
Culms suberect,6–7 m,3–4 cm in diam.;internodes straight,38–55 cm,sparsely stiffly dull brown hairy,initially partly white powdery below sheath scar but powder not in rings;wall slightly thin;nodes flat,glabrous;branching from 5th or 6th node up.Branches many,clustered,horizontal,central slightly dominant.Culm sheaths deciduous,glossy,abaxially and near margins ± stiffly dull brown hairy,apex subtruncate;auricles subequal,narrowly oblong,ca.1.5 × 0.6–0.7 cm;oral setae undulate;ligule ca.1 mm,erose,very shortly ciliolate;blade deciduous,erect,ovate-triangular,nearly as long as or slightly shorter than sheath,base ca.2/3 width of sheath apex.Leaf blade linear,9–14 × 0.8–1.2 cm,abaxially subglabrous,adaxially pubescent near base.Pseudospikelets 2 or 3 clustered on each node of flowering branches,linear-lanceolate,2–3 cm;gemmiferous bracts 2 or 3,ovate,ca.5 mm,13-veined,base cordate,apex acute;florets 6 or 7,apical one sterile;rachilla segments flat,2–4 mm,subglabrous.Glumes absent;lemma oblong,ca.1.2 cm,slightly asymmetrical,21-veined,apex acute;palea narrow,longer than or about as long as lemma,keels sparsely ciliolate near apex,5-veined between and 3-veined on either side of keels;lodicules 3,unequal,anterior 2 oblique,ca.2 mm,margins long ciliate,posterior narrowly obovate,ca.1.5 mm.Anthers ca.5 mm,apex retuse.Ovary subglobose,ca.1 mm in diam.,stalked,apex hispidulous;style hairy,ca.1.5 mm;stigmas 3,ca.5 mm.Mature caryopsis unknown.New shoots May–Oct.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Poales
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Family: Poaceae
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Genus: Bambusa
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