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Trisetum clarkei (Hook. f.) R.R. Stewart Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Brittonia 5(4): 431. 1945. (Brittonia) Name publication detail
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Flower/Fruit: Fl. & Fr. Per.: July-September.
Type: Syntypes: Kashmir, Clarke 31514, 31517; Northwest India, Clarke 22985, 24605 (all K).
Distribution: Distribution: Pakistan (N.W.F.P. & Kashmir); Nepal and Northwest India.
Comment/Acknowledgements: Trisetum clarkei and Trisetum spicatum can, at times, be very difficult to distinguish. Their obvious differences, clearly seen when good specimens are placed side by side, preclude the possibility that they are only subspecies or conspecific. There are no substantial quantitative differences except that in Trisetum clarkei the glumes and lemmas are slightly narrower than in Trisetum spicatum, a feature that correlates well with the looseness of the panicle. It is possible that the boundary between the two is obscured by hybridisation.

Trisetum clarkei is common in alpine pastures from 2700 to 4000 m.

Map Location: A-7 Chitral dist.: between Och Anzog and Camp 2 by South Barum Glacier, 3800 m, 12 July 1950,Per Wendelbo s.n. (K); B-7 Hazara dist.: Shadal, 16 August 1899, J. F. Duthie s.n. (K, KUH); B-8 Kashmir: Khillanmarg, above Gulmarg 10000', R. R. Stewart 10602 A (K, KUH); Upper Astor Valley, near Shankargarh, 10000', R. R. & I. D. Stewart 18739 (RAW); Baltistan: Rama, above Astor, 10000', R. R. Stewart 22904a (K); B-9 Kashmir: Yamhar Pass, 12000', R. R. Stewart 12454 (K, KUH); C-7 Hazara dist.: Miranjani, 9-9500', R. R. Stewart 28701, 28870 (RAW); C-8 Kashmir: Budrawar, 10000', C. B. Clarke 31514, 31517 (K); below Fras Nag, Pir Panjal Range, 8700', R. R. Stewart 23096 (K, RAW); C-9 Kashmir: Fras Nag, 9000', R. R. Stewart 23198(K).

 

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Tufted perennial; culms 20-70 cm high, erect or geniculately ascending, puberulous especially below the inflorescence. Leaf-blades 4-20 cm long, 1.5-2(-4) mm wide, flat, pubescent to scaberulous. Panicle lanceolate to subcylindrical, loose or sometimes ± dense, the axis and branches puberulous, 4.5-18 cm long, 1-3 cm wide. Spikelets 2-3-flowered, 5-8.5 mm long excluding the awns; glumes unequal, lanceolate, acute, the lower 3-nerved, 4-6 mm long, the upper (4.5-)5.5-7.5 mm long; lemma narrowly elliptic, (5.2-)5.5-7mm long; awn 4-8 mm long, strongly recurved.
 
 
 
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