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relative cover was sampled, and one woody shrub was the dominant species in the community with 22.80 percent mean cover and 53.74 percent relative cover. • The dominant vaswlaz plain species of the reference area was the native woody shrub Artemisia filifolia. Artemisia filifolta accounted for 22.80 percent of the mean cover and 53.74 percent relative cover. Stipa viridula provided the second highest cover with 6.20 percent mean cover and 12.07 percent relative cover. The annual Bromus tectorum accounted for the next largest mean cover with 5.20 percent (9.48% relative). Calamovilfa longifolia contributed 3.20 percent mean vegetation rover (6.32% relative), Bouteloua gracilis followed with 2.40 percent mean and 4.31 percent relative, and Andropogon hallii provided 2.20 percent total cover (3.45% relative). No individual fort or succulent species sampled had relative weer greater than three percent. Vegetative litter (prior year's growth, dead wood, and other biologic organic material) comprised an average 38.00 percent ground cover within the reference azea. Baze soil comprised 13,20 percent of the ground cover encountered in the reference area. No rock or cryptogams were encountered during this yeaz's cover sampling. Herbaceous Production Total herbaceous production at the Osgood sand reference area was 119.71 glm2 (1067 lb/ac). Perennial grasses accounted for the majority of reference area herbaceous production, comprising 78.32 g/m2 (698 lb/ac) or 65.4 percent of total herbaceous production. Annual grasses wntributed 20.32 g/m2 (181 lb/ac) or 17.0 percent of total • herbaceous production. Annual forbs accounted for 13.41 g/m2 (120 Ib/ac) of the reference area herbaceous production. Perennial forbs provided 7.65 g/m2 (68 lb/ac) of the reference azea total herbaceous production this year. Species Composition Within the reference area four lifeforms were represented; grasses, forbs, succulents, and woody plants. The total number of species encountered during cover sampling within the reference area in 2001 was seventeen. Graminoids accounted for six species, forbs nine species, succulents contributed one species, and one shrub species was presern. Of the species encountered in the reference area, fourteen were native and three were introduced. Perennial species outnumbered annual species by nine to eight. Of the species encountered, six represented greater than three percent relative cover; Artemisiafrlifolia (53.74%), Stipa viridula (12.07%), Bromus tectorum (9.48%), Calamovilfa longifolta (6.32%) , Boutelouagracilis (4.31%), and Andropogon hallii (3.45%) Cool season plants dominated the reference area with ten species, while there were Sve warm season species, one succulent, and one deciduous species. Graminoid seasonality was evenly split between warm and cool season species with three representatives each. There were seven cool season fort species, two warm season forbs, one evergreen succulent, and the shrub species was deciduous. U _~