Arundinella cannanorica

Description

Annual herbs,culms 20-50 cm tall,erect,slender;nodes glabrous.Leaves 2-5 cm long and 2-5 mm broad,mostly basal,lanceolate,base rounded or shallowly cordate,glabrous or covered with sparse tubercle-based hairs,especially along the margins;sheaths 1-8 cm,lower ones shorter and upper ones much longer than the internodes,striate,glabrous or ciliate along one margin;ligule a row of hairs.Panicles 10-40 cm long,lax,willowy;branches 1-12 cm long,ascending,alternate or rarely whorled,slender,filiform,angular,bearded at the nodes with long silky hairs,purple;rhachis flexuous,angular and scaberulous;pedicels 2-15 mm long,slender,angular,scaberous.Spikelets 5-6 mm long,lanceolate,acuminate,turgid,pale-green or purple,glabrous.Lower glume 3.5-4.5x 1-1.5 mm,ovate-lanceolate,strongly 3-nerved,purple,glabrous;upper glume 5-5.5 x 1.25-1.5 mm,ovate-lanceolate,caudate or long-acuminate,strongly 5-nerved,glabrous.Lower floret male;lemma 2.75-3 x 1-1.5 mm,and glabrous;palea 1-2.5 x 0.5-0.75 mm,elliptic-lanceolate,2-keeled and auriculate at base,2-nerved,hyaline,glabrous;stamens 3;anthers 1-1.5 mm long,filaments short.Upper floret bisexual;callus bearded,hairs 0.25-0.5 mm long;lemma 1.75-2 x 0.5-0.75 mm,ovate or elliptic,tip with a geniculate awn,dorsally covered with numerous wart-like outgrowths,chest-nut brown when fully matured,awn 8-10 mm long,geniculate,column c.4 mm long,chestnut brown;palea 1.25-1.5 x 0.4-0.5 mm,oblong,acute,2-nerved,with a few wart like outgrowths on the dorsal surface;lodicules 2,each c.0.3 x 0.25 mm,obovate,denticulate at apex;stamens 3,anther 1-2 mm long,violet,filaments short;ovary c.0.25 x 0.15 mm,ovate,glabrous;styles c.0.5 mm long,stigmas c.1 mm long,pink,feathery.