Poaceae
Sourgrass
Digitaria insularis
- Family
- Poaceae
- Genus
- Digitaria
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Common names
By language (2)
- English
- Sourgrass
- Portuguese
- Capim-amargoso, Elionurus candidus
Synonyms
- Agrostis villosa Steud.
- Andropogon fabricii Henrard
- Andropogon insularis L.
- Digitaria leucophaea (Kunth) Stapf
- Milium hirsutum P.Beauv.
- Milium villosum Sw.
- Monachne unilateralis Roem. & Schult.
- Nardus dactyloides Roll.-Germ. ex Rottb.
- Panicum duchaissingii Steud.
- Panicum falsum Steud.
- Panicum gavanianum Steud. ex Döll
- Panicum insulare (L.) G.Mey.
- Panicum insulare var. insulare
- Panicum insulare var. leucophaeum (Kunth) Kuntze
- Panicum insulare var. typicum Hack.
- Panicum lanatum Rottb.
- Panicum leucophaeum Kunth
- Panicum saccharoides A.Rich.
- Rhynchospora fabri (Rottb.) Steud.
- Saccharum polystachyum Siebold ex Kunth
- Schoenus fabri Rottb.
- Syntherisma insulare (L.) Millsp.
- Syntherisma insularis (L.) Millsp.
- Trichachne insularis (L.) Nees
- Tricholaena insularis (L.) Griseb.
- Tricholaena saccharoides Griseb.
- Valota insularis (L.) Chase
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Hawaii: introduced, Lower 48 states: native, Navassa Island: native, Pacific Basin: introduced, Puerto Rico: native, U.S. Virgin Islands: native
Photos
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons 
Photo: Daniel, CC0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons Photo: leticiamaggioni0607, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: Sue Carnahan, CC BY 4.0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons Photo: leticiamaggioni0607, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: Kevin Faccenda, CC BY 4.0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons Photo: Miguel Acuña, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: Kevin Faccenda, CC BY 4.0, from iNaturalist 
Photo: Forest & Kim Starr, CC BY 3.0, from Wikimedia Commons
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Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.