Grasses of Puerto Rico

The grass family Poaceae is the largest group of flowering plants present on the island of Puerto Rico. With 258 species, it represents 9% of all Angiosperms and 33% of all Monocots.

The following is a list of grass species known to exist in Puerto Rico, separated by genus:

"Agrostis"

:"Agrostis hyemalis"

"Andropogon"

:"Andropogon bicornis":"Andropogon glomeratus":"Andropogon gracilis":"Andropogon leucostachyus":"Andropogon virginicus"

"Anthephora"

:"Anthephora hermaphrodita"

="Aristida"=

:"Aristida adscensionis":"Aristida chaseae":"Aristida portoricensis":"Aristida refracta":"Aristida spiciformis":"Aristida suringarii":"Aristida swartziana"

"Arthraxon"

:"Arthraxon castratus"

"Arthrostylidium"

:"Arthrostylidium farctum":"Arthrostylidium multispicatum":"Arthrostylidium sarmentosum"

"Arundinella"

:"Arundinella hispida"

"Arundo"

:"Arundo donax"

"Avena"

:"Avena sativa"

"Axonopus"

:"Axonopus aureus":"Axonopus compressus":"Axonopus fissifolius"

"Bambusa"

:"Bambusa multiplex":"Bambusa vulgaris"

"Bothriochloa"

:"Bothriochloa ischaemum":"Bothriochloa pertusa":"Bothriochloa saccharoides"

"Bouteloua"

:"Bouteloua americana":"Bouteloua juncea":"Bouteloua repens"

"Brachyelytrum"

:"Brachyelytrum erectum"

"Cenchrus"

:"Cenchrus brownii":"Cenchrus echinatus":"Cenchrus gracillimus":"Cenchrus myosuroides":"Cenchrus spinifex"

"Chloris"

:"Chloris barbata":"Chloris ciliata":"Chloris cubensis":"Chloris elata":"Chloris radiata":"Chloris sagraeana"

"Chusquea"

:"Chusquea abietifolia"

"Coix"

:"Coix lacryma-jobi"

"Cymbopogon"

:"Cymbopogon citratus":"Cymbopogon nardus"

"Cynodon"

:"Cynodon dactylon":"Cynodon nlemfuensis"

"Dactylis"

:"Dactylis glomerata"

"Dactyloctenium"

:"Dactyloctenium aegyptium"

"Dichanthelium"

:"Dichanthelium aciculare":"Dichanthelium acuminatum":"Dichanthelium dichotomum":"Dichanthelium leucothrix":"Dichanthelium ovale":"Dichanthelium sabulorum":"Dichanthelium scoparium":"Dichanthelium strigosum"

"Dichanthium"

:"Dichanthium annulatum":"Dichanthium aristatum"

"Diectomis"

:"Diectomis fastigiata":"Diectomis argillacea":"Diectomis bicornis":"Diectomis ciliaris":"Diectomis dolichophylla":"Diectomis eriantha":"Diectomis horizontalis":"Diectomis insularis":"Diectomis ischaemum":"Diectomis longiflora":"Diectomis nuda":"Diectomis panicea":"Diectomis sanguinalis":"Diectomis setigera":"Diectomis similis":"Diectomis villosa":"Diectomis violascens"

"Echinochloa"

:"Echinochloa colona":"Echinochloa crus-galli":"Echinochloa crus-pavonis":"Echinochloa polystachya":"Echinochloa stagnina"

"Eleusine"

:"Eleusine indica"

"Eragrostis"

:"Eragrostis amabilis":"Eragrostis barrelieri":"Eragrostis ciliaris":"Eragrostis curvula":"Eragrostis elliottii":"Eragrostis glutinosa":"Eragrostis hypnoides":"Eragrostis pectinacea":"Eragrostis pilosa":"Eragrostis urbaniana"

"Eremochloa"

:"Eremochloa ophiuroides"

"Eriochloa"

:"Eriochloa polystachya":"Eriochloa punctata"

"Eriochrysis"

:"Eriochrysis cayennensis"

"Euclasta"

:"Euclasta condylotricha"

"Eustachys"

:"Eustachys petraea"

"Gymnopogon"

:"Gymnopogon foliosus"

"Gynerium"

:"Gynerium sagittatum"

"Hackelochloa"

:"Hackelochloa granularis"

"Heteropogon"

:"Heteropogon contortus"

"Holcus"

:"Holcus lanatus"

"Homolepis"

:"Homolepis glutinosa"

"Hymenachne"

:"Hymenachne amplexicaulis"

"Hyparrhenia"

:"Hyparrhenia rufa"

"Hypogynium"

:"Hypogynium virgatum"

"Ichnanthus"

:"Ichnanthus nemorosus":"Ichnanthus pallens":"Ichnanthus tenuis"

"Imperata"

:"Imperata brasiliensis":"Imperata contracta"

"Isachne"

:"Isachne angustifolia"

"Lasiacis"

:"Lasiacis divaricata":"Lasiacis grisebachii":"Lasiacis ligulata":"Lasiacis sloanei":"Lasiacis sorghoidea"

"Leersia"

:"Leersia hexandra":"Leersia monandra"

"Leptochloa"

:"Leptochloa fusca":"Leptochloa nealleyi":"Leptochloa panicea":"Leptochloa panicoides":"Leptochloa scabra":"Leptochloa virgata"

"Leptochloopsis"

:"Leptochloopsis virgata"

"Leptocoryphium"

:"Leptocoryphium lanatum"

"Lithachne"

:"Lithachne pauciflora"

"Lolium"

:"Lolium perenne"

"Melinis"

:"Melinis minutiflora":"Melinis repens"

"Microstegium"

:"Microstegium vimineum"

"Muhlenbergia"

:"Muhlenbergia capillaris"

"Olyra"

:"Olyra latifolia"

"Oplismenus"

:"Oplismenus hirtellus"

"Oryza"

:"Oryza latifolia":"Oryza sativa"

"Panicum"

:"Panicum dichotomiflorum":"Panicum diffusum":"Panicum elephantipes":"Panicum ghiesbreghtii":"Panicum laxum":"Panicum miliaceum":"Panicum parvifolium":"Panicum rigidulum":"Panicum schiffneri":"Panicum stenodes":"Panicum stevensianum":"Panicum tenerum":"Panicum trichanthum":"Panicum trichoides":"Panicum venezuelae"

"Pappophorum"

:"Pappophorum pappiferum"

"Paspalidium"

:"Paspalidium chapmanii":"Paspalidium geminatum"

"Paspalum"

:"Paspalum arundinaceum":"Paspalum bakeri":"Paspalum blodgettii":"Paspalum boscianum":"Paspalum caespitosum":"Paspalum clavuliferum":"Paspalum conjugatum":"Paspalum convexum":"Paspalum decumbens":"Paspalum densum":"Paspalum dilatatum":"Paspalum dispar":"Paspalum distichum":"Paspalum fasciculatum":"Paspalum fimbriatum":"Paspalum laxum":"Paspalum macrophyllum":"Paspalum maritimum":"Paspalum millegrana":"Paspalum minus":"Paspalum molle":"Paspalum notatum":"Paspalum orbiculatum":"Paspalum paniculatum":"Paspalum parviflorum":"Paspalum paucispicatum":"Paspalum pleostachyum":"Paspalum plicatulum":"Paspalum pulchellum":"Paspalum rupestre":"Paspalum secans":"Paspalum setaceum":"Paspalum urvillei":"Paspalum vaginatum":"Paspalum virgatum"

"Pennisetum"

:"Pennisetum ciliare":"Pennisetum clandestinum":"Pennisetum glaucum":"Pennisetum polystachion":"Pennisetum purpureum"

"Pharus"

:"Pharus lappulaceus":"Pharus latifolius":"Pharus parvifolius"

"Phragmites"

:"Phragmites australis"

"Poa"

:"Poa annua":"Poa pratensis"

"Polypogon"

:"Polypogon viridis"

"Polytrias"

:"Polytrias indica"

"Rottboellia"

:"Rottboellia cochinchinensis"

"Saccharum"

:"Saccharum bengalense":"Saccharum officinarum":"Saccharum spontaneum"

"Sacciolepis"

:"Sacciolepis indica":"Sacciolepis striata"

"Schizachyrium"

:"Schizachyrium brevifolium":"Schizachyrium sanguineum":"Schizachyrium tenerum"

"Setaria"

:"Setaria barbata":"Setaria magna":"Setaria parviflora":"Setaria pradana":"Setaria rariflora":"Setaria setosa":"Setaria tenacissima":"Setaria utowanaea":"Setaria vulpiseta"

"Sorghastrum"

:"Sorghastrum setosum":"Sorghastrum stipoides"

"Sorghum"

:"Sorghum bicolor":"Sorghum halepense"

"Spartina"

:"Spartina patens"

"Sporobolus"

:"Sporobolus cubensis":"Sporobolus domingensis":"Sporobolus indicus":"Sporobolus pyramidatus":"Sporobolus tenuissimus":"Sporobolus virginicus"

"Stenotaphrum"

:"Stenotaphrum secundatum"

"Themeda"

:"Themeda arguens"

="Tragus"=

:"Tragus berteronianus"

"Tripsacum"

:"Tripsacum fasciculatum":"Tripsacum latifolium"

"Triticum"

:"Triticum aestivum"

"Urochloa"

:"Urochloa adspersa":"Urochloa arrecta":"Urochloa brizantha":"Urochloa decumbens":"Urochloa distachya":"Urochloa fuscata":"Urochloa maxima":"Urochloa mosambicensis":"Urochloa mutica":"Urochloa plantaginea":"Urochloa reptans"

"Vetiveria"

:"Vetiveria zizanioides"

"Vulpia"

:"Vulpia bromoides"

"Zea"

:"Zea mays"

"Zoysia"

:"Zoysia matrella":"Zoysia tenuifolia"

External links

* [http://utc.usu.edu/factsheets/prgrassfsf/pr_grass_index.html Grasses of Puerto Rico factsheets]