EcoFlora - Cenchrus

Cenchrus
Family: Poaceae	Gleason & Cronquist Resources Vascular plants of NE US and adjacent Canada Spikelets lance-oblong, usually dorsally compressed, sessile, with 1 perfect terminal fl above a neuter or staminate floret; glumes membranous or hyaline, the first 1- or 3-veined and equaling to much shorter than the 1-7-veined second one, or the first glume obsolete; sterile lemma 3-7-veined, about as long as the fertile one, with a well developed palea; fertile lemma about as long as the spikelet, membranous, 5- or 7-veined, equaling and partly enclosing its palea; 1- several spikelets collectively enclosed (or the tips exserted) in a bur of concrescent, barbed or scabrous spines or bristles, the burs sessile or nearly so on a slender rachis, forming a solitary, spike-like panicle with the axis usually prolonged into a short point; grasses with solid culms, compressed-keeled sheaths, and mostly flat lvs, the ligule reduced to a ciliate rim. 20, widespread, mostly in warm reg. Two spp. of Tragus are rarely found in our range, especially on ballast and about wool mills. The bur, instead of being composed of concrescent branchlets, as in Cenchrus, is composed of the enlarged second glumes, which are uncinate-spiny. T. racemosus (L.) All. has the second glume 3.6-4.5 mm, whereas T. berteronianus Schult. has it 2.3-3 mm. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: Grasses in North America \|\| << 1 - 50 taxa >> Cenchrus abyssinicus Media not available Map not Available Cenchrus advena Map not Available Cenchrus agrimonioides Map not Available Cenchrus americanus Map not Available Cenchrus annuus Media not available Map not Available Cenchrus arnhemicus Media not available Map not Available Cenchrus bambusiformis Map not Available Cenchrus basedowii Media not available Map not Available Cenchrus biflorus Map not Available Cenchrus brownii Map not Available Cenchrus caliculatus Map not Available Cenchrus calyculatus Map not Available Cenchrus caninus Map not Available Cenchrus caudatus Map not Available Cenchrus chilensis Map not Available Cenchrus clandestinus Map not Available Cenchrus complanatus Map not Available Cenchrus compressus Map not Available Cenchrus distachyus Map not Available Cenchrus distichophyllus Media not available Map not Available Cenchrus divisus Map not Available Cenchrus domingensis Media not available Map not Available Cenchrus dowsonii Media not available Map not Available Cenchrus durus Map not Available Cenchrus echinatus Map not Available Cenchrus elymoides Map not Available Cenchrus flaccidus Map not Available Cenchrus flexilis Media not available Map not Available Cenchrus foermeranus Media not available Map not Available Cenchrus geniculatus Map not Available Cenchrus glaucocladus Media not available Map not Available Cenchrus gracilescens Media not available Map not Available Cenchrus gracillimus Map not Available Cenchrus hohenackeri Map not Available Cenchrus hordeoides Media not available Map not Available Cenchrus intectus Media not available Map not Available Cenchrus lanatus Map not Available Cenchrus latifolius Map not Available Cenchrus laxior Media not available Map not Available Cenchrus laxius Media not available Map not Available Cenchrus longispinus Map not Available Cenchrus longissimus Media not available Map not Available Cenchrus macrourus Map not Available Cenchrus massaicus Media not available Map not Available Cenchrus mezianus Media not available Map not Available Cenchrus michoacanus Media not available Map not Available Cenchrus mildbraedii Media not available Map not Available Cenchrus mitis Media not available Map not Available Cenchrus monostigma Media not available Map not Available Cenchrus montanus Map not Available