| Digitaria sanguinalis | 
|  | 
|
| Scientific classification | 
| Kingdom: | Plantae | 
 
| Clade: | Tracheophytes | 
 
| Clade: | Angiosperms | 
 
| Clade: | Monocots | 
 
| Clade: | Commelinids | 
 
| Order: | Poales | 
 
| Family: | Poaceae | 
 
| Subfamily: | Panicoideae | 
 
| Genus: | Digitaria | 
| Species: | D. sanguinalis | 
| Binomial name | 
| Digitaria sanguinalis 
 | 
|
| Synonyms | 
| 
 * Asperella digitaria Lam.
    * Cynodon praecox (Walter) Roem. & Schult.
    * Dactilon sanguinale (L.) Vill.
    * Digitaria aegyptiaca Willd.
    * Digitaria australis Willd. ex Trin. *nom. inval.
    * Digitaria caucasica Henrard
    * Digitaria eriogona (Schrad.) Link
    * Digitaria gracilis Guss.
    * Digitaria intermedia Gennari
    * Digitaria nealleyi Henrard
    * Digitaria nervosa (Rottb.) Roem. & Schult.
    * Digitaria panicea Willd. ex Steud. nom. inval.
    * Digitaria pectiniformis (Henrard) Tzvelev
    * Digitaria pilosa Pieri nom. illeg.
    * Digitaria plebeia Phil.
    * Digitaria praecox (Walter) Willd.
    * Digitaria sabulosa Tzvelev
    * Digitaria sanguinaria Steud. nom. inval.
    * Digitaria sanguinea Weber [Spelling variant]
    * Digitaria sanguinolenta Edgew. ex Aitch. nom. inval.
    * Digitaria sienitica Trin. nom. inval.
    * Digitaria stricta Willd. ex Steud. nom. inval.
    * Digitaria tristachya Willd. ex Steud. nom. inval.
    * Digitaria vulgaris (Schrad.) Besser
    * Leptochloa fascicularis Griseb. ex Benth. nom. inval.
    * Milium membranaceum Moench
    * Panicum aegyptiacum Retz. nom. illeg.
    * Panicum aegyptium J.F.Gmel. [Spelling variant]
    * Panicum ambiguum Lapeyr. nom. inval.
    * Panicum eriogonum Schrad.
    * Panicum fallax Spreng.
    * Panicum gracile (Guss.) Nyman nom. illeg.
    * Panicum gussonii K.Richt.
    * Panicum nervosum Rottler nom. illeg.
    * Panicum rottleri Kunth
    * Panicum sanguinale L.
    * Panicum sanguineum Gueldenst.
    * Panicum sanguinolentum Edgew. ex Aitch. nom. inval.
    * Panicum trichostachyum Steud. nom. inval.
    * Paspalum aegyptiacum (Willd.) Poir.
    * Paspalum filiforme Steud. nom. inval.
    * Paspalum oxyanthum Steud.
    * Paspalum sanguinale (L.) Lam.
    * Sanguinaria nevenarae Bubani
    * Syntherisma praecox Walter
    * Syntherisma sanguinale (L.) Dulac
    * Syntherisma sanguinalis (L.) Dulac
    * Syntherisma vulgaris Schrad.
   
 | 
Digitaria sanguinalis is a species of grass known by several common names, including hairy crabgrass, hairy finger-grass, large crabgrass, crab finger grass, purple crabgrass. It is one of the better-known species of the genus Digitaria, and one that is known nearly worldwide as a common weed. It is used as animal fodder, and the seeds are edible and have been used as a grain in Germany and especially Poland, where it is sometimes cultivated.  This has earned it the name Polish millet.