This post is a list of popular grasses. This list was generated with the help of Google Search. There are 62 species listed below alphabetically. Wikipedia says, "Grasses have stems that are hollow except at the nodes and narrow alternate leaves borne in two ranks." (Wikipedia: Poaceae, 11.1.22 UTC 14:36)
Alpine hairgrass (Deschampsia nubigena)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Annual bluegrass (Poa annua)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Barbed wire grass (Cymbopogon refractus)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Barley (Hordeum vulgare)
Photo source: Wikimedia Commons, Rasbak
License: CC0 1.0
Bermuda grass (Cynodon dactylon)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Big bluestem (Andropogon gerardii)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Blue grama (Bouteloua gracilis)
Photo source: Wikimedia Commons, Agnieszka Kwiecien (Nova)
License: CC BY-SA 4.0
Broad-leaf carpet grass (Axonopus compressus)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Broomsedge bluestem (Andropogon virginicus)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Carabao grass (Paspalum conjugatum)
Photo source: Wikimedia Commons, Filo gen
License: CC BY-SA 4.0
Cat grass (Dactylis glomerata)
Photo source: Wikimedia Commons, Lazargagnidze
License: CC BY-SA 4.0
Chinese fountain grass (Pennisetum alopecuroides)
Photo source: Wikimedia Commons, Unukorno
License: CC BY 4.0
Chinese silver grass (Miscanthus sinensis)
Photo source: Wikimedia Commons, Jungle
License: CC BY-SA 3.0
Common bamboo (Bambusa vulgaris)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Common bent (Agrostis capillaris)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Common carpetgrass (Axonopus fissifolius)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Common couch (Elymus repens)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Common wheat (Triticum aestivum)
Photo source: Wikimedia Commons, IRNA DIST
License: CC BY 2.0
Creeping bentgrass (Agrostis stolonifera)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Crimson fountain grass (Cenchrus setaceus)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Dallas grass (Paspalum dilatatum)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Drooping brome (Bromus tectorum)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
European feather grass (Stipa pennata)
Photo source: Wikimedia Commons, Galina Gouz
License: CC BY-SA 4.0
Great millet (Sorghum bicolor)
Photo source: Wikimedia Commons, Stefan.lefnaer
License: CC BY-SA 4.0
Guinea grass (Megathyrsus maximus)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Hairy crabgrass (Digitaria sanguinalis)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Hakone grass (Hakonechloa macra)
Photo source: Wikimedia Commons, Cillas
License: CC BY-SA 4.0
Hare's tail grass (Lagurus ovatus)
Photo source: Wikimedia Commons, Yoko Nekonomania
License: CC BY 2.0
Indian goosegrass (Eleusine indica)
Photo source: Wikimedia Commons, Tau'olunga
License: CC BY-SA 3.0
Giant thorny bamboo (Bambusa bambos)
Photo source: Wikimedia Commons, Dorotanm
License: CC BY-SA 3.0
Johnson grass (Sorghum halepense)
Photo source: Wikimedia Commons, Stefan.lefnaer
License: CC BY-SA 4.0
Kikuyu grass (Pennisetum clandestinum)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Maize (Zea mays)
Photo source: Wikimedia Commons, Plenuska
License: CC BY-SA 4.0
Mat muhly (Muhlenbergia richardsonis)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Meadow fescue (Festuca pratensis)
Photo source: Wikimedia Commons, T.Voekler
License: CC BY-SA 3.0
Mexican feather grass (Nassella tenuissima)
Photo source: Wikimedia Commons, Stan Shebs
License: CC BY-SA 3.0
Native millet (Panicum decompositum)
Photo source: Wikimedia Commons, Mark Marathon
License: CC BY-SA 4.0
Needle-and-thread grass (Stipa comata)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Oat (Avena sativa)
Photo source: Wikimedia Commons, H. Zell
License: CC BY 3.0
Pampas grass (Cortaderia selloana)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Perennial ryegrass (Lolium perenne)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Poverty Brome (Bromus sterilis)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Reed canary grass (Phalaris arundinacea)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Rice (Oryza sativa)
Photo source: Wikimedia Commons, 阿橋 HQ
License: CC BY-SA 2.0
Rough bluegrass (Poa trivialis)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Rye (Secale cereale)
Photo source: Wikimedia Commons, Македонец
License: CC BY-SA 4.0
Seashore paspalum (Paspalum vaginatum)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Sideoats grama (Bouteloua curtipendula)
Photo source: Wikimedia Commons, Matt Lavin
License: CC BY-SA 2.0
Signal grass (Brachiaria decumbens)
Photo source: Wikimedia Commons, Harry Rose
License: CC BY 2.0
Soft brome (Bromus hordeaceus)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Sourgrass (Digitaria insularis)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
St. Augustine grass (Stenotaphrum secundatum)
Photo source: Wikimedia Commons, Forest & Kim Starr
License: CC BY 3.0 US
Sweet grass (Hierochloe odorata)
Photo source: Wikimedia Commons, Krzysztof Ziarnek (Kenraiz)
License: CC BY-SA 4.0
Sweet vernal grass (Anthoxanthum odoratum)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Switchgrass (Panicum virgatum)
Photo source: Wikimedia Commons, David J. Stang
License: CC BY-SA 4.0
Tall fescue (Festuca arundinacea)
Photo source: Wikimedia Commons, Bjorn S...
License: CC BY-SA 2.0
Teff (Eragrostis tef)
Photo source: Wikimedia Commons, Rasbak
License: CC BY-SA 3.0
Timothy grass (Phleum pratense)
Photo source: Wikimedia Commons, AnRo0002
License: CC0 1.0
Tufted hairgrass (Deschampsia cespitosa)
Photo source: Wikimedia Commons, Christian Fischer
License: CC BY-SA 3.0
West Indian lemongrass (Cymbopogon citratus)
Photo source: Wikimedia Commons, Mokkie
License: CC BY-SA 4.0
Witchgrass (Panicum capillare)
Photo source: Wikimedia Commons, Stefan.lefnaer
License: CC BY-SA 4.0
Wood small-reed (Calamagrostis epigejos)
Photo source: Wikimedia Commons, Stefan.lefnaer
License: CC BY-SA 4.0