& Chase) Fernald – tropical crabgrass Subordinate Taxa. While some of the varieties of crabgrass are considered weeds, others are food and animal forage. Crab grass, Digitaria sanguinalis. Smooth crabgrass Photo courtesy of Randall Prostak University of Massachusetts Habitat Cultivated and uncultivated areas Affected crops Most agricultural crops Distribution Africa, Asia, Europe, South America, USA Description; Large crabgrass (D. sanguinalis) Synonym: Finger grass Crabgrass is a summer annual that germinates when soil temperatures reach a consistent 55 degrees F and is generally killed at the first frost. Rank Scientific Name and Common Name; Kingdom: Plantae ... Digitaria Haller – crabgrass Species: Digitaria argillacea (Hitchc. Scientific Name: Digitaria sanguinalis. Leaves are flat, measuring 0.75-6 inches long and up to 0.5 inches wide, with a prominent mid-rib and pubescent on both sides. Crabgrass leaves are rolled in the bud; the first leaf appears short, wide and blunt-tipped. Digitaria species span the globe with many indigenous names. Crab grass develops several branching culms at the base, the lower branches of the culms tend to sprawl across the ground, while their upper branches are more erect. Depending on the species, the blades local name of Digitaria sanguinalis is crab grass.. Digitaria sanguinalis is an annual grass.The height of Crab grass is between 1 to 3 feet long. Description. 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. Description. There are 33 listed species in the family, all different crabgrass varieties. Classification: Grass, summer annual Growth Habit: Spreading, prostrate Description: There are five species of crabgrass that are common in Florida: India, blanket, southern, tropical and smooth crabgrass. The other is Hairy Crabgrass (Digitaria sanguinalis), which has hairy sheaths, a small but distinct first glume, second glume about half as long and wide as the lemma, and (when not repeatedly mowed over) is a rather larger plant with up to 15 spikes at stem tips. Crabgrass have membranous ligules that are truncated and have a jagged appearance. Synonyms (former Scientific Names): Syntherisma sanguinalis . Nevertheless, its scientific name is Digitaria sanguinalis It has an annual life cycle and traces its origin to Europe.. Hairy crabgrass thrives well in rich clay or sandy soil. Large crabgrass has a prostrate to ascending growth habit and is capable of rooting at the nodes. Weed Family: Poaceae. Hairy crabgrass - Herbal Medicine - An illustrated compilation of Philippine medicinal plants by Dr Godofredo Umali Stuart with botanical information, chemical properties, folkloric uses and research studies. Crabgrass Scientific Name: Digitaria spp. Also Known As: Large Crabgrass. Crabgrass Scientific name: Digitaria spp. Panicum sanguinale . Crabgrass (Digitaria sanguinalis) is an annual in the grass family (Poaceae). Habit. Some call it the large crabgrass yet others have also named it the common crabgrass. The majority of the types of crabgrass weeds are native to tropical and temperate regions. This weed comes with a variety of names. Leaf blades vary in size from 1 inch to over 2 inches long. Click on a scientific name below to expand it in the PLANTS Classification Report. Scientific name: Echinochloa crus-galli L. Life Cycle: ... Large crabgrass emerges later than most annual grass weeds and grows well under hot, dry conditions (Figure 13). Large crabgrass germinates in the spring and competes with turf during the summer months. Crabgrass begins germinating when sustained soil temperatures are 55 degrees F and moisture is available. Animal forage named it the Common crabgrass blades crabgrass ( Digitaria sanguinalis ) is an annual in the grass (... 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