Tropicos | Name - !Muhlenbergia Schreb.

Pakistan > Poaceae > Muhlenbergia

Choose Project down

English

!Muhlenbergia Schreb.

Search in Index Nominum Genericorum (ING)

Search in African Plants Database at Geneva Botanical Garden

African Plants, Senckenberg Photo Gallery

Published In: Genera Plantarum 1: 44. 1789. (Gen. Pl.)

Project Name Data (Last Modified On 6/2/2011)

Acceptance : Accepted

Project Data (Last Modified On 6/3/2011)

General/Distribution: A genus of about 100 species from the Himalayas eastward to Japan and North America southward to the Andes; 3 species occur in Pakistan.

Comment/Acknowledgements: It is now clear that Muhlenbergia is misplaced in tribe Agrostideae. Its anatomy is chloridoid so its affinity is with Chlorideae. The 1-flowered spikelet suggests that it belongs in Sporoboleae, but some authors have placed it in its own tribe Muhlenbergieae or in a subtribe (Muhlenbergiinae) of Chlorideae on the strength of its fusiform rather than ellipsoid caryopsis with adherent pericarp.

Export To PDF

Export To Word

Annuals or prennials. Leaf-blades flat or convolute. Panicle open or the spikelets clustered on the branches. Spikelets lanceolate, oblong or elliptic, small, the rhachilla disarticulating above the glumes, not prolonged or very rarely prolonged and bearing a second floret; glumes persistent, subequal or unequal, the lower rarely obsolete, obtuse to acuminate or awned, membranous or hyaline, 1-nerved; lemma usually longer than the glumes, acute, obtuse or truncate, awnless or awned from the tip or just below it, 3-nerved; callus short, obtuse; palea equal to or a little longer or shorter than the lemma. Caryopsis fusiform with adherent pericarp.

Export To PDF

Export To Word

Export To SDD

Switch to indented key format

1	Glumes not as much as four-fifths as long as the lemma, mostly less than three-quarters as long; panicle loose and nodding, the spikelets scarcely clustered about the rather long, flexuous main branches	(2)
+	Glumes at least four-fifths as long as the lemma, often equalling or exceeding it; panicle with the spikelets clustered about the short main branches; plant without rhizomes	Muhlenbergia duthieana

2 (1)	Fairly robust rhizomatous perennial, usually without stolons; leaves up to 7 mm wide; spikelets 2-3.3 mm long; glumes 1.3-2.2 mm long, less than half to two-thirds as long as the lemma	Muhlenbergia huegelii
+	Slender non-rhizomatous perennial with creeping stolons; leaves 1.5-3 mm wide; spikelets 3-4 mm long; glumes 2.5-3.4 mm long, two-thirds to three-quarters as long as the lemma	Muhlenbergia himalayensis