Andropogon (common names: beard grass, bluestem grass, broomsedge) is a widespread genus of plants in the grass family, native to much of Asia, Africa, and the Americas, as well as Southern Europe and various oceanic islands. (wikipedia.org)
Andropogon: A new name for a chalky bluestem (Weakley & Schori, 2018) explains the need for a new name for this species, A. glaucopsis being preoccupied. (namethatplant.net)
Andropogon hallii and A. gerardii are sympatric in some locations. (asu.edu)
Andropogon gerardii differs by having awns 8 - 25 mm long, ligules 0.4 - 2.5 mm long, and rhizomes (if present) with internodes to 2 cm long. (asu.edu)
Schizachyrium scoparium dominated followed by Andropogon gerardii, Solidago speciosa, Sorghastrum nutans, and Bouteloua curtipendula. (castaneajournal.com)
Andropogon gerardii (big blue stem) Schizachyrium scoparium (little blue stem) - there are some lovely cultivars. (floralibrary.com)
Andropogon virginicus is easily distinguished because its inflorescences are shorter than 5 cm, the stalked spikelets are absent or rudimentary, and the florets usually only have one anther. (asu.edu)
This species may be more frequent than verified collections indicate, but is certainly much less widely distributed than either Andropogon glomeratus var. (vaplantatlas.org)
Neste estudo, foram determinados os valores do isótopo estável do Carbono (δ 13 C), e dados morfoanatômicos de fitólitos produzidos em Andropogon bicornis L. e Andropogon leucostachyus Kunth in Humb. (observatoriolatinoamericano.com)
This section is from the book " An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol1 ", by Nathaniel Lord Britton, Addison Brown. (chestofbooks.com)
Andropogon chrysocomus Nash, in Britton , Man. (chestofbooks.com)