Roos and Quinn (1977) found that early successional field population of Andropogon scoparius
had a higher reproductive effort and a shorter developmental time (as indicated by dates of first anthesis) than populations of older successional field.
The mosaic system is a mixture of short-grass prairie on the more xeric, upland or south facing slopes and can be dominated by Bouteloua gracilis, Bouteloua hirsuta, Andropogon scoparius
, Carex filifolia, and Buchloe dactyloides (Kaul and Rolfsmeier 1993).
Those species that were seeded frequently, yet present infrequently ("ineffectively seeded") includes a mixture of eight native grasses and forbs: Andropogon scoparius
, Achillea millefolium, Agropyron riparium, Agropyron caninum, Ratibida columnifera, Bouteloua graeilis, Sporobulus eryptandrus, and Festuca ovina.
Ecotypic variation in Andropogon scoparius
and Bouteloua gracilis.
On 6-7 July 1990 seeds mixed with damp sand were broadcast in each 9 x 9 m plot from one of 60 individually measured and weighed bags of six grasses (Agropyron trachycaulum (Link) Malte, Andropogon gerardi Vitman, Andropogon scoparius
prairie herb Andropogon gerardi Vitman prairie herb Andropogon scoparius
Arsenic tolerance in a population of the grass Andropogon scoparius
At the same time with this, or near the end of August, a to me very interesting genus of grasses, Andropogons, or Beard-Grasses, is in its prime: Andropogon furcatus, Forked Beard-Grass, or call it Purple-Fingered Grass; Andropogon scoparius
, Purple Wood-Grass; and Andropogon (now called Sorghum) nutans, Indian-Grass.
Variation in flowering behavior within populations of Andropogon scoparius