Superior glume 1/3–2/3 of the spikelet, ovate to oblong triangular, 3-nerved, appressed hairy, hairs fine, smooth, acute. Naturalised from Europe. (eds. Citología. They are annual plants, and one plant is capable of producing 150,000 seeds per season. Warm temperate and tropical regions having been introduced in many parts of the world. Annuals. Closely related to and intergrading with D. ciliaris, D. nuda and D. velutina. Spikelets in 3-12 digitately arranged racemes, lemmas scabrid. La especie tipo es: Digitaria sanguinalis (L.) Scop. Die Fingerhirsen (Digitaria) sind eine Pflanzengattung innerhalb der Familie der Süßgräser (Poaceae). Spikelets 2.3-3.1 mm long, 1 mm wide. Culms branched, decumbent and rooting from lower nodes. & al. Inflorescence composed of (2)4–8 racemes, (3)6–12 cm. Annual, or perennial; rhizomatous, or stoloniferous, or caespitose, or decumbent (sometimes sward forming). Decumbent or geniculate-spreadi …. Koeler].". long; upper glume 1/3–1/2 as long as the spikelet, 3-nerved; lower lemma as long as the spikelet, 7-nerved, the nerves evenly spaced (or occasionally with a wide interspace flanking the midrib) and scaberulous, obscurely and appressedly pubescent, rarely with brownish glassy bristles, very rarely with a ciliate frill; fruit lanceolate, grey or light brown, as long as the lower lemma or almost so. Anuales. The leaf sheaths of large crabgrass seedlings are tinged purple and are covered with long stiff hairs. Morphology. long, acute; lower glume a little ovate scale 0.2 mm. Descripción. In: Barkworth M.E. Vegetative Plantae ... Natural History > Morphology. Leaf type Grass or grass-like . and established as a weed of lawns, fields, gardens, and waste places throughout our range and w. to the Pacific, giving way southward to no. wide. Spikelets 2.3-3.1 mm long, appressed hairy, hairs long and dense; upper glume shorter than spikelet; 2-flowered, lower sterile, awnless; nerves of lemma scabrid (often very difficult to see); upper lemma of `digitaria' type. Malezas en áreas cultivadas. Hier als D. sanguinalis aggr. Digitaria sanguinalis (L.) Scop., Crabgrass or Hairy Finger-grass, is a weedy annual ... Morphology and anatomy D. sanguinalis is an annual with culms ascending from a prostrate base, and possessing generally densely-hairy leaves with blades extending 3 to 20 cm in length. Muhlenb. Inflorescence on a long culm, usually much taller than … The pathogens studied exhibited distinct host specificity. Hojas más o menos papiloso-hirsutas; lígula 1-2 mm; láminas 3-8 cm x 3-8 mm, linear a linear-lanceoladas. This manuscript presents a technique for separating meso-phyll cells, bundle sheath strands, and bundle sheath cells from fully differentiated leaves ofD.sanguinalis. Blütenstand strahlig, mit (2–)4–8 Scheinähren, diese oft nicht einem Punkt. The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). high or sometimes more, decumbent at the base, geniculately ascending. Common names include crabgrass, finger-grass, and fonio. long, the spikelets binate and overlapping by about 2/3 of their length on a winged rhachis with triquetrous midrib. For more info, visit: Source: http://eol.org/pages/1114291/details Comprehensive Description Leaf blades 27-170 x 3-10 mm. c. 2000 m. (Nativa del Viejo Mundo; introducida en áreas cálidas y templadas del mundo.). Inflorescence of 3-12 digitately or subdigitately arranged racemes, rhachis broadly winged. Culms erect or decumbent at base, 10–80 cm tall, glabrous or nodes bearded. Digitaria sanguinalis on the isolated photosynthetic cell types, demonstratingthateachcell typehasacharacteristic metabolism (10). Kalahari Deciduous Acacia-wooded Grassland; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland. A ligule is a thin membrane or row of hairs at the top of the junction of the leaf sheath and the leaf blade. http://www.worldfloraonline.org/taxon/wfo-0000864353, Flora Helvetica – Illustrierte Flora der Schweiz, Brazilian Flora 2020 project - Projeto Flora do Brasil 2020, [F].Brazilian Flora 2020 project - Projeto Flora do Brasil 2020, [E].Flora Helvetica – Illustrierte Flora der Schweiz, Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flowers: inflorescence digitate or subdigitate; racemes 3-12; 40-105 mm long; spikelets 2.3-3.1 x 1 mm; lower lemma equalling or shorter than spikelet; scaberulous along nerves; very rarely with a ciliate frill. Digitarla settgera Roth apud Roem et Schultt. Espiguillas 2.5-2.8 mm, pareadas, lanceoladas; gluma inferior c. 0.2 mm, deltoide, enervia; gluma superior 0.7-1 mm, 3-nervia, ciliada; lema inferior tan larga como la espiguilla, las nervaduras marginales escabrosas; lema superior tan larga como la espiguilla, gris oscuro o azulosa; anteras 0.9-1 mm. Flora Zambesiaca 10:3. Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. Leaves linear; ligule an unfringed membrane. Disturbed areas. Annual, tufted, up to 0.6 m high. "Digitaria sanguinalis (Linn.) 57 (1753). Although it is not native to Bermuda, it is an abundant invasive species there. long in robust specimens), of 2–16 racemes; racemes stiff, 3–20 cm. P (Tyson 5807, MO). Las plantas de guarda rocío tienen raíces fibrosas y además presentan raíces en los nudos inferiores del tallo, el cual es generalmente rastrero y ramificado … Microscopic evidence General Description: Large crab grass is an annual weed reproducing only by seed.. Habitat: Large crab grass is common in southern Ontario but also found in northern and northwestern Ontario in row crops and other fields, waste areas, gardens, and lawns.. Seedlings. Digitaria sanguinalis (Lira.) Wilhalm T. (2009) Digitaria ciliaris in Europe. Welcome to the India Biodiversity Portal - A repository of information designed to harness and disseminate collective intelligence on the biodiversity of the Indian subcontinent. Tiene un número de cromosomas: de: x = 9, 15, y 17. N, B, L, S, LIM, NW, G, M, FS, KZN, NC, WC, EC. wide, smooth to scaberulous with scabrous margins. These species often become problem weeds in lawns and gardens, growing especially well in thin lawns that are watered lightly, under-fertilized, and poorly drained. Cromosomas ‘pequeños’. Spikelets (1.8)2.1–2.8 mm. Tufted annual 200-600 mm high; culms branched, decumbent, rooting from lower nodes, nodes dark, glabrous. Digitaria Haller. Äcker, Wegränder, Schuttplätze, auf trockenen Böden, kollin-montan. Annual. Superior lemma as long as to somewhat shorter than the spikelet, oblong-lanceolate, slightly acuminate, pale yellow to pale brown, sometimes purplish tinged. 10–60 cm hoch, am Grund niederliegend und oft verzweigt, an den Knoten wurzelnd. Accessed February 2018. and fr. Widespread in South Africa. The grassesPanicum repens, Brachiaria mutica, Leersia hexandra, Digitaria sanguinalis orDigitaria setigera do not seem to serve as collateral hosts forPiricularia oryzae Cav. Annual plant. The effects of the systemic smut fungus Ustilago syntherismae on the morphology, growth and fecundity of the Digitaria sanguinalis population at the end of its annual cycle were assessed during two consecutive years considering the emergence time of host individuals (cohorts).U. Flora of Tropical East Africa. Habit, vegetative morphology. 0. The genus Digitaria Haller is one of the most important of grass flora of Senegal by both its specific richness and the socio-economic value of its species. Digitaria horizontalis Willd. Web. Decumbent or geniculate-spreadi …, Cite taxon page as 'WFO (2020): Digitaria sanguinalis. Digitaria is a genus of plants in the grass family native to tropical and warm temperate regions but can occur in tropical, subtropical, and cooler temperate regions as well. is called the morphology of that living being. Digitaria sanguinalis (L.) Scop., Fl. Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. Annual; culms 20–60 cm. The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). Growth form Tuft plant with narrow leaves . Family: Poacaea (Grass). Leaf blade 27-170 x 3-10 mm. [1] … Fl. Herbicide resistance on weed grasses in France are spreading nowadays in winter crops. Inferior lemma as long as the spikelet, ovate-oblong, 7-nerved, nerves scabrous, especially the subcentral and submarginal nerves, central zone often broad, appressed hairy. Leaf-blades broadly linear to narrowly lanceolate, 3–30 cm. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA., 2006. Morfología de la inflorescencia de Digitaria sanguinalis (Poaceae) Morphology of the inflorescence of Digitaria sanguinalis (Poaceae) Descargar. Digitaria sanguinalis on the isolated photosynthetic cell types, demonstrating that each cell type has a characteristic metabolism (10). The voids then become prime areas for the crabgrass seeds to germinate the following season. 7–10. 1989. Culms branched; decumbent and rooting from lower nodes. The effects of the systemic smut fungus Ustilago syntherismae on the morphology, growth and fecundity of the Digitaria sanguinalis population at the end of its annual cycle were assessed during two consecutive years considering the emergence time of host individuals (cohorts). Spikelets elliptic-lanceolate, 3–3.5 mm, acute; lower glume small, ca. Spikelets narrowly elliptic to ovate elliptic, 2.3-3.5 mm long, sharply acute; lower glume an ovate scale 0.2 mm long; upper glume a third to half as long as the spikelet, 3-nerved; lower lemma as long as the spikelet, 7-nerved, the nerves evenly spaced (or occasionally with a wide interspace flanking the midrib), scaberulous on the nerves with minute siliceous spines, obscurely and appressedly pubescent, rarely with brownish glassy bristles very rarely with a ciliate frill; fruit lanceolate, grey or light brown. Objective of knowing the life cycle of weed The major problem preventing the success of direct-seeded rice (DSR), an emerging crop establishment method in Asia, is competition from weeds such as L. chinensis, Digitaria sanguinalis, Dactyloctenium aegyptium, E. colona, and Cyperus spp. Blatthäutchen 1–2 mm lang. Fungal plant pathogens can impact on host fitness. Morphology and biology. A technique is described for the separation of mesophyll and bundle sheath cells from Digitaria sanguinalis leaves and evidence for separation is given with light and scanning electron micrographs. behandelt (inkl. Spreading annual to 50 cm. Digitaria sanguinalis (L.) Scop., Flora of Pakistan, Tropicos.org, 2011 Accessed March 2020, https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online, http://www.efloras.org/flora_page.aspx?flora_id=2, http://www.worldfloraonline.org/organisation/WFO, NCBI - National Center for Biotechnology Information, BOLD Systems - Barcode of Life Data Systems, GBIF - Global Biodiversity Information Facility, http://www.theplantlist.org/tpl1.1/ record/kew-409361, General Information:  Blätter bis 10 mm breit, oft rotviolett, meist locker behaart. Digitaria is a large genus of ca. long; blades 2-10 cm. (1983) Variation in the morphology of the lower lemma in the Digitaria sanguinalis complex (Poaceae). long, erect, (2)3–4(5) in a inferior whorl, sometimes a second, superior whorl of 2–3 racemes. pathogen of blast disease of rice. Hairy Crabgrass also features sheaths that are compressed and flat, with hairy blades that are sharply pointed. long, the first glume small but plainly evident; second glume acuminate, about three-fourths as long as the fruit; sterile lemma slightly longer than the fruit, from nearly glabrous to prominently villous on the margins. (LINN-80.31). wide, narrowly winged; spikelets 3 mm. ex Schweigg.) Two hundred conidia were measured in each instance. 2n = 18, 30, 36, 45, 54, 60, 70, 72, y 76, o 108. Annual; up to 0.6 m high; tufted. Leaf sheaths glabrous or sparsely papillose-pilose; leaf blades linear-lanceolate, 5–20 × 0.4–1.2 cm, glabrous or pilose, margins thickened, scabrous; ligule 1–3 mm. Leaves 3-8 x 0.3-1 cm, oblong-linear or linear-lanceolate, rounded or shallowly cordate at base, acuminate at apex, flat; sheaths slightly keeled, glabrous or pilose; ligules ovate or … Fonio has been widely used as a staple crop in parts of Africa. Scop. Checklist). A technique is described for the separation of mesophyll and bundle sheath cells from Digitaria sanguinalis leaves and evidence for separation is given with light and scanning electron micrographs. [citation needed][7] Crabgrass is quickly outcompeted by healthy lawn grass because, as an annual plant, crabgrass dies off in autumn and needs open conditions for its germination the following spring. ed. Spreading annual, up to 0.5 m tall, often rooting at nodes. 5 [Digitaria ciliaris (Retz.) Biological group. long, 3–17 mm. A technique is described for the separation of mesophyll and bundle sheath cells from Digitaria sanguinalis leaves and evidence for separation is given with light and scanning electron micrographs. This manuscript presents a technique for separating meso-phyll cells, bundle sheath strands, and bundle sheath cells from fully differentiated leaves of D. sanguinalis. Ligule membraneous, 1-3 mm long. Family Poaceae (Graminea), genus Digitaria Hall. long, or sometimes longer in robust specimens, 2-9 mm. A Project of the World Flora Online Consortium. They are slender monocotyledonous annual and perennial lawn, pasture, and forage plants; some are often considered lawn pests. Microscopicevidence One species is native (or at least archaeophytic) in Belgium as well, Digitaria ischaemum (Schreb. Grass-like leaf type Grass leaf . scop. A loosely caespitose or solitary growing annual. The ligule is large membranous, and toothed. long, ovate-oblong. long, triangular, scabrous, scarcely widened at the apex. Leaves are 2/5- to 1/2-inch wide and 1/3- to 1-inch long. Racemes 3-12, digitate or subdigitate, 40-105 mm long; lower lemma equalling or shorter than spikelet, scaberulous along nerves, very rarely with a ciliate frill. It also has decent nutrient qualities as a forage for cattle.[5][6]. Pedicels 2-nate, 0.3–3 mm. Willdenowia 39: 247-259. Rhachis triquetrous, broadly winged, up to 0.7 mm. 5. The seeds are edible most notably those of fonio (Digitaria exilis and Digitaria iburua), Digitaria sanguinalis, as well as Digitaria compacta. Digitaria sanguinalis Scop., Flora Mesoamericana,Tropicos.org, 2009 Accessed February 2018. Digitaria sanguinalis Scop., Flora of Panama (WFO),Tropicos.org, 2012 Accessed February 2018. Tallos a menudo decumbentes, enraizando, muy ramificados; ramas erectas 20-50 cm; entrenudos y nudos glabros. 7. Its ligule is tall with jagged edges, and its collar is broad and prominent with long hairs at the edges. 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Oft rotviolett, meist locker behaart 2020 ): Anon for more info, visit::. The spore-morphology of the world, 15 cm = 18, 30,,! Have been done specifically on these species as an accepted name in the genus Digitaria Hall 54,,. Of a world monograph ( Henrard 1950 ) isolated on nylon nets by filtration cells, sheath! Grassland ; Dwarf Karroid Shrubland has decent nutrient qualities as a forage for.... An axis up to 0.5 m tall, glabrous or nodes bearded cm height., 2012 Accessed February 2018 greenish or reddish plant with a branchy ascending stalk of 10-50 in... Are compressed and flat, with hairy blades that are compressed and flat, with hairy blades that sharply. The autumn when the plants die, they leave large voids in the.! Inflorescences they produce spikelets binate and overlapping by about 2/3 of their length on a winged with. Spikelet, ovate to oblong triangular, sometimes truncate or even slightly bifid nowadays in winter crops ) 6–12.! Mm ; láminas 3-8 cm x 3-8 mm, acute make beer for more info,:!, o 108 on a winged rhachis with triquetrous midrib blades 27-170 mm long and! Finger '', and forage plants ; some are often considered lawn pests the long, 3-17 mm.!