These included, in order of preference, smooth sumac, white prairie clover, alkali sacaton, roundhead lespedeza (Lespedeza capitata), black-eyed Susan (Rudbeckia hirta), sand dropseed, western yarrow (Achillea millefolium var.
The sandy loam site is characterized by widely scattered longleaf yucca (Yucca elata) and Mormon tea (Ephedra trifurca); black grama (Bouteloua eriopoda) dominates the herbaceous understory, with lesser amounts of sand dropseed (Sporobolus cryptandrus) and blue grama (Bouteloua gracilis).
Dominant grasses are blue grama, alkali sacaton, and galleta grass, with secondary components of sand dropseed and three-awn.
While neither sand dropseed nor three-awn contributed substantially to overall cover, their frequency exhibited different responses: the frequency of sand dropseed fluctuated greatly while that of three-awn decreased after the drought and still had not recovered by 2010 (Table 2).
9 frequency (2) 47 [+ or -] 7 47 [+ or -] 7 Sand dropseed cover 2.
Common grasses were sand bluestem (Andropogon hallii), little bluestem (Schizachyrium scoparium), blue grama (Bouteloua gracilis), black grama (Bouteloua eriopoda), sideoats grama (Bouteloua curtipendula), sand dropseed (Sporobolus cryptandrus), and purple threeawn (Aristida purpurea).
When coverage was not partitioned according to season, hairy grama had less association with sites of lesser prairie-chicken than did wheat (Triticum), whereas alfalfa had the most association, followed by sand dropseed.