Thamnocalamus spathiflorus var. spathiflorus.

Rato negalo (Nepal)


Culms : Tufted

Height : 6m

Diameter : 2cm

Culm Color : Yellow, Green

Internode Length : 25cm

Culm Sheath Color : 13 cm long and 5 cmbroad, loose, striate, coriaceous, glabrous, ciliate on the edges, light yellow coloured, shining inside, slightly narrowed atthe apex with ca. 1 cm broad mouth with few stiff bristles on both sides. Imperfect blade ca. 5.5 cm long, striate, erect,decurrent on the sheath; ligule short, fimbriate.

Length of Leaf : 10 cm

Breadth of Leaf : 1 cm

Shape of Leaf : linear-lanceolate

Altitude : 2,400-3,100m

Habitat, Distribution,Uses

Habitat : Ever green forest

Introduced to : Nepal, North west India,Kumaon,Garhwal hills(Utter Pradesh),Simla (Himachal Pradesh)

Description of Inflorescence and Flower : drooping panicle,usually on separate leafless branches; panicle 7-9 cm long with 3-6 spikelets; rachis slender bracts 5.5 cm long 0.6 cmbroad ending into a callus having bristles and leafy imperfect blade which encloses 3 pedicellate spikelets. Spikelet ca. 5.5 cm long, 5-7-flowered, the upper floret imperfect; rachilla ca. 5 cm long, clavate, hairy at the tip; empty glumes 2,linear lanceolate, ciliate at the tip and edges, thin and membranous, outer glume ca. 13 mm long and 2 mm broad and6-nerved, inner glume ca. 18 mm long and 2.5 mm broad and 9-nerved; lemma ca. 20 mm long and 3.5 mm broadovate, lanceolate, long acuminate with ciliate tip, 11-nerved; palea ca. 10 mm long, 2-keeled, ciliate on the keels,2-nerved on either side of the keel, tip bifid and ciliate; lodicules 3, ca. 2.5 mm long, ovate acute, fimbriate, 3-nerved,one is narrower than the other two. Stamens 3; anthers ca. 8 mm long, basifixed, tip blunt. Ovary ca. 2.5 mm long,oblong, ovoid, glabrous, style short, undivided with 3 long plumose stigmas.

Flowering Cycle : 16-17 years

Flowering Reported : North Western Himalayas(1818-1821), Gamble(1863-1866), Brandis from Jaunsar(1881-1882), Gamble from Jaunsar(1892-1893)

Uses: Mats, baskets, pipes, hookah tubes, fishing rods, ornamental plants

References: Seethalakshmi K. K ,1998 , Ohrnberger D,1999

Kerala Forest Research Institute All rights reserved.

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