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: -- Select a Taxonomic Group -- All Species -------------------------- Achnatherum Agropyron Agrostis Andropogon Apiaceae Aristida Bothriochloa Bouteloua Bromus Carex Chloris Cyperaceae Danthonia Daucus Digitaria Echinochloa Elymus Eragrostis Erioneuron Festuca Glyceria Hesperostipa Hordeum Jarava Koeleria Leptochloa Leymus Melica Muhlenbergia Munroa Nassella Panicum Pappostipa Pascopyrum Paspalum Piptatherum Piptochaetium Poa Poaceae Polypogon Pseudoroegneria Puccinellia Schizachyrium Setaria Sporobolus Stipa Thinopyrum Tridens Trisetum Vulpia : Plant   habit    grass-like    aquatic & OBL wetland species   special groups    dicots    monocots   longevity    annual or biennial    perennial Leaves   blade division    all simple    deeply lobed or divided    some or all fully compound   leaf attachment    leaf stalk (petiole) clearly present    sheathing Flower   principal flower color    white or cream    yellow    inconspicuous   flower type    radial symmetry 5 petals    petals indistinguishable Fruit or Cone   mature fruit dehiscence    opening along 1-2 seams    does not split open to release seed Graminoid Traits   leaf arrangment - number of ranks    2-ranked    3-ranked   stem consistency    solid    hollow except at nodes   culm cross-section    round    angled   leaf sheath    closed (not split)    open (split on side)   ligules    absent    eciliate membrane    ciliate membrane    fringe of hairs    erose   spikelet disarticulation    breaking up at maturity (above glumes)    falling entire (below glumes)   spikelet compression    laterally compressed    dorsally compressed    subterete   awns - present/absent    awns present    awns absent

Graminoid Leaf and Stem Anatomy Vera Markgraf and Hugo Berger Species Count: 65 Apiaceae Daucus pusillus Cyperaceae Carex ebenea Carex kelloggii Poaceae Achnatherum lettermanii Achnatherum nelsonii Agrostis exarata Andropogon glomeratus Andropogon hallii Aristida purpurea Bothriochloa laguroides Bouteloua barbata Bouteloua eriopoda Bouteloua gracilis Bromus catharticus Bromus ciliatus Bromus inermis Bromus tectorum Chloris virgata Danthonia californica Danthonia intermedia Digitaria cognata Disakisperma dubium Echinochloa crus-galli Elymus elymoides Elymus glaucus Eragrostis mexicana Eragrostis pectinacea Eriocoma hymenoides Erioneuron pilosum Festuca saximontana Glyceria borealis Hesperostipa comata Hordeum jubatum Hordeum murinum Jarava speciosa Koeleria macrantha Leymus cinereus Melica porteri Muhlenbergia asperifolia Muhlenbergia microsperma Muhlenbergia montana Munroa squarrosa Nassella cernua Nassella pulchra Nassella viridula Panicum capillare Pappostipa speciosa Pascopyrum smithii Paspalum dilatatum Piptatheropsis micrantha Piptochaetium pringlei Poa fendleriana Poa reflexa Polypogon monspeliensis Pseudoroegneria spicata Puccinellia distans Schizachyrium scoparium Setaria viridis Sporobolus airoides Sporobolus contractus Sporobolus cryptandrus Thinopyrum intermedium Tridens muticus Trisetum spicatum Vulpia octoflora

This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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