SIDEOATS GRAMA Bouteloua Curtipendula (Michx.) Torr. Var

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SIDEOATS GRAMA Bouteloua curtipendula (Michx.) Torr. var. curtipendula GRASS FAMILY (POACEAE) 2 mm Plants: Rhizomatous perennial grass. Plants with long, scaly rhizomes; leaves mostly basal; flowering stems solitary or in small clusters; stems smooth, 0.2 – 1.0m tall, purplish at the nodes. Leaves: Leaf blades flat or folded when dry; 3-7 mm wide, 2-30 cm long; ligules membranous, ciliate, 0.3-0.5mm; 2 mm Flowers: Flowering panicles 10 – 30 cm long with 40 – 70 short drooping one-sided branches; with 3-7 crowded spikelets per branch. Glumes unequal, first small and narrow (2.5 - 6 mm); second 4 - 8mm long, thick and purplish; Spikelets 1 perfect floret with and imperfect floret above; fertile lemmas 3-6mm long; anthers red or red-orange (occasionally yellow, orange, purple). Habitat: Rich, loamy, well-drained prairie soils; prefers fine-textured, calcareous and moderately alkaline soils; 100m – 2500m elevation range; the Alberta occurrence is along a glacial meltwater channel, possibly introduced from a seed mix; associated with Stipa comata – Koeleria micrantha – Calamovilfa longifolia – Schizachyrium scoparium – Bouteloua gracilis – Muhlenbergia richardsonii – Juniperus horizontalis – Artemesia frigida. Status: S1 G5 Notes: Major components of short grass prairie in the Great Plains. Much of its range is now cultivated. Good forage value for grazers, Linda A. Vorobik and Cindy Roché, staying moderately palatable into the winter; © Utah State University often used in reclamation seed mixes. References: Alberta Natural Heritage Information Centre, Parks Division, Alberta Tourism, Parks and Recreation, ANHIC Database – Element Occurrence Report. Data accessed March 13, 2009. Flora of North America (FNA) (ed.). 2003. Flora of North America – North of Mexico. Volume 25: Magnoliophyta, Commelinidae (in part), Poaceae, Part 2. Oxford University Press. New York, New York. Stubbendieck, J., Hatch, S.L. and C.H. Butterfield. 1992. North American Range Plants, 4th Edition. University of Nebraska Press, Lincoln and London. Photo by Marilena Kowalchuk ANHIC 2010 Kartesz & Meacham ©1999 .

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