Flora of Papua New Guinea 
Lae National Herbarium 
10085 Cyperaceae 
Cyperus platystylis R. Br. 
East Sepik Province, vicinity of Langu village, alluvial forest oji flood 
plain of the Sanchi tributary, Sepik River, elev. <40 m, near 4° 11’ S, 
142° 44’ E. 
with 10084, herb on floating mats; perennial, approx. .5 m height; 
leaves grass-green, erect, rosulate in congested clumps, somewhat 
fleshy to coriaceous (not herbaceous), blades linear, attenuate at the 
apex, margin scabridulous; peduncle triquetrous, smooth, 60 cm+, 
the inflorescence decompound, about 15 cm across, overtopping 
the leaves, subtended by 5 foliaceous involucral bracts, the bracts 
spreading and unequal; spikelets light brown, digitate from short 
secondary rays, c. 9 mm long, lanceolate, compressed, 
disarticulation pattern not apparent; flowers numerous, glumes 
mucronulate, keel smooth; nut immature, with a flat face against the 
rachilla, stigmas always 3. 
Waskuk name not recorded. 
coll: W. Takeuchi 10085 
date: August 1 8, 1 994 
det. WT 
