However, in some regions like Les Landes, intensive spring crops are predominant and some populations of Digitaria sanguinalis are not controlled anymore with herbicides commonly used in carrots and green beans. 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. Leaf blade 27-170 x 3-10 mm. Spikelets in 3-12 digitately arranged racemes, lemmas scabrid. 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. Anuales. Abstract. Leaf type Grass or grass-like . Muhlenb. in Flora of China @ efloras.org" eFlora. Tufted annual 200-600 mm high; culms branched, decumbent, rooting from lower nodes, nodes dark, glabrous. scop. Decumbent or geniculate-spreadi …, Cite taxon page as 'WFO (2020): Digitaria sanguinalis. Jun–Sep. Culms branched, decumbent and rooting from lower nodes. Anthers ca. Grass-like leaf type Grass leaf . Spreading annual, up to 0.5 m tall, often rooting at nodes. Leaves linear; ligule an unfringed membrane. Ligule membraneous, 1-3 mm long. Habit, vegetative morphology. Spikelets elliptic-lanceolate, 3–3.5 mm, acute; lower glume small, ca. Inflorescence composed of (2)4–8 racemes, (3)6–12 cm. Microscopic evidence Leaf-blades broadly linear to narrowly lanceolate, 3–30 cm. They can be toasted, ground into a flour, made into porridge or fermented to make beer. 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. Nucleolos persistentes. Common names include crabgrass, finger-grass, and fonio. The seeds germinate in the late spring and early summer and outcompete the domesticated lawn grasses, expanding outward in a circle up to 30 cm (12 in) in diameter. The voids then become prime areas for the crabgrass seeds to germinate the following season. They are slender monocotyledonous annual and perennial lawn, pasture, and forage plants; some are often considered lawn pests. 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 … 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. Hairy Crabgrass also features sheaths that are compressed and flat, with hairy blades that are sharply pointed. pathogen of blast disease of rice. Fl. 7. Morphology: The total feature of a living being (plant or animal) such as characteristics, structure (external and internal), reproductive organ, nutrient uptake organ and method etc. Tallos a menudo decumbentes, enraizando, muy ramificados; ramas erectas 20-50 cm; entrenudos y nudos glabros. The ligule is large membranous, and toothed. Annual plant. For more info, visit: Source: http://eol.org/pages/1114291/details Comprehensive Description Two hundred conidia were measured in each instance. Annual, or perennial; rhizomatous, or stoloniferous, or caespitose, or decumbent (sometimes sward forming). Inflorescence digitate or subdigitate (rarely with an axis up to 15 cm long in robust specimens), composed of 2-16 racemes; racemes stiff, 3-20 cm long, the spikelets binate and overlapping by about two-thirds their length on a winged rhachis with triquetrous midrib; pedicels triquetrous, scabrid, obtuse or slightly expanded at the tip. 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). N, B, L, S, LIM, NW, G, M, FS, KZN, NC, WC, EC. (LINN-80.31). long, the spikelets binate and overlapping by about 2/3 of their length on a winged rhachis with triquetrous midrib. One species is native (or at least archaeophytic) in Belgium as well, Digitaria ischaemum (Schreb. This name is reported by Poaceae as an accepted name Inflorescence digitate or subdigitate, of 3-12 racemes 40-120 mm long; rachis triquetrous, broadly winged, glabrous to scaberulous; pedicel triangular, scaberulous; spikelets paired. Decumbent or geniculate-spreadi …. Leaf-blades broadly linear to narrowly lanceolate, 3–30 cm. (eds. A loosely caespitose or solitary growing annual. Digitaria sanguinalis (Lira.) The spore-morphology of the above-mentioned six fungi was studied with freshly-harvested spores from host-lesions. Inflorescence of 3-12 digitately or subdigitately arranged racemes, rhachis broadly winged. In the autumn when the plants die, they leave large voids in the lawn. They are annual plants, and one plant is capable of producing 150,000 seeds per season. Fonio has been widely used as a staple crop in parts of Africa. Spreading annual to 50 cm. 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. General Information:  (1983) Variation in the morphology of the lower lemma in the Digitaria sanguinalis complex (Poaceae). Spikelets (1.8)2.1–2.8 mm. This manuscript presents a technique for separating meso-phyll cells, bundle sheath strands, and bundle sheath cells from fully differentiated leaves ofD.sanguinalis. 5. Inflorescence digitate or subdigitate, axis 1–2 cm; racemes 4–12, stiff, 5–18 cm; spikelets paired, overlapping by about 2/3 their length; rachis winged, midrib triquetrous, margins scabrous. long, ovate-oblong. Wilhalm T. (2009) Digitaria ciliaris in Europe. Its ligule is tall with jagged edges, and its collar is broad and prominent with long hairs at the edges. 10–60 cm hoch, am Grund niederliegend und oft verzweigt, an den Knoten wurzelnd. Plantae ... Natural History > Morphology. Scop. Malezas en áreas cultivadas. (family Poaceae). Die Fingerhirsen (Digitaria) sind eine Pflanzengattung innerhalb der Familie der Süßgräser (Poaceae). Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. Warm temperate and tropical regions having been introduced in many parts of the world. Culms branched; decumbent and rooting from lower nodes. Naturalised from Europe. A common weed in cultivated ground and waste places, in warm temperate and tropical regions around the world. The seeds are edible most notably those of fonio (Digitaria exilis and Digitaria iburua), Digitaria sanguinalis, as well as Digitaria compacta. in the genus Biological group. 25. Culms (6–)15–300 cm high (or more? The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). It also has decent nutrient qualities as a forage for cattle.[5][6]. Digitarla settgera Roth apud Roem et Schultt. Leaf laminae 3–12 × 0.1–0.5 cm., linear, flat, scaberulous on both surfaces, with a few bulbous based bristles on the superior surface, near the base, scaberulous along the margin. Accepted name. 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. behandelt (inkl. Morphology and biology. Provided by: .Plants Of the World Online Portal - FTEA; ... 5 Digitaria sanguinalis Scop., Flora Mesoamericana,Tropicos.org, 2009 Accessed February 2018. Fungal plant pathogens can impact on host fitness. 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:  Leaf arrangement Alternate . Vegetative The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). Hier als D. sanguinalis aggr. 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. Hojas más o menos papiloso-hirsutas; lígula 1-2 mm; láminas 3-8 cm x 3-8 mm, linear a linear-lanceoladas. In: Barkworth M.E. Digitaria sanguinalis on the isolated photosynthetic cell types, demonstratingthateachcell typehasacharacteristic metabolism (10). 1989. 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 … Culms erect or decumbent at base, 10–80 cm tall, glabrous or nodes bearded. "Decumbent or prostrate, much branched, rooting at the nodes, usually 3–6 dm; sheaths and blades papillose-pilose, the blades 4–10 cm × 5–10 mm; racemes 3–6 in each of 1–3 whorls, 5–15 cm; rachis 1 mm wide, broadly winged, scabrous on the margins; pedicels triquetrous, scabrous; spikelets 2.4–3.2 mm; first glume minute, often deciduous, the second 0.8–1.8 mm, a third to three-fifths the length of the spikelet; sterile lemma usually scabrous on the 5 strong veins; fertile lemma grayish-brown; 2n=18–76, mostly 36. 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. 0. [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. long, or sometimes longer in robust specimens, 2-9 mm. Digitus is the Latin word for "finger", and they are distinguished by the long, finger-like inflorescences they produce. Annual; culms 20.60 cm high or sometimes more, decumbent at the base, geniculately ascending. Pedicels 2-nate, 0.3–3 mm. 2, 1: 52 (1771). The examples and perspective in this article, Learn how and when to remove this template message, Kew World Checklist of Selected Plant Families, "Checklist of grasses in Namibia, Part 3", https://en.wikipedia.org/w/index.php?title=Digitaria&oldid=986895799, Short description is different from Wikidata, Articles with limited geographic scope from January 2014, Pages in non-existent country centric categories, Articles with unsourced statements from December 2015, Creative Commons Attribution-ShareAlike License, This page was last edited on 3 November 2020, at 16:56. Inflorescence on a long culm, usually much taller than … long, triangular, scabrous, scarcely widened at the apex. Digitaria horizontalis Willd. Lectotipo (designado por Hitchcock, 1908): Anon. and fr. The pathogens studied exhibited distinct host specificity. ), Flora of North America north of Mexico, vol. Flora Zambesiaca 10:3. Family: Poacaea (Grass). Blatthäutchen 1–2 mm lang. Leaf blades 27-170 mm long, 3-10 mm wide. Culms 20–60 cm., decumbent or creeping at the base, glabrous, nodes dark and glabrous. 57 (1753). Although it is not native to Bermuda, it is an abundant invasive species there. 1974, Gramineae, W. D. Clayton. Superior lemma as long as to somewhat shorter than the spikelet, oblong-lanceolate, slightly acuminate, pale yellow to pale brown, sometimes purplish tinged. long in robust specimens), of 2–16 racemes; racemes stiff, 3–20 cm. Spikelets narrowly elliptic to ovate-elliptic, 2.3–3.5 mm. D. sanguinalis und D. ciliaris, vgl. ); herbaceous ; amply to sparsely branched above, or unbranched above. long, acute; lower glume a little ovate scale 0.2 mm. 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. Morphology. 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Existence of a world monograph ( Henrard 1950 ) to germinate the following season ascending... Tropical regions having been introduced in many parts of Africa knowing the life cycle of weed ligule,... Mm ; láminas 3-8 cm x 3-8 mm, linear a linear-lanceoladas ( 2009 ) Digitaria ciliaris in.. Or row of hairs at the lower nodes ; nodes glabrous autumn when the plants die, they large! Cultivados, bordes de carretera y potreros or more often rooting at nodes or arranged! With D. ciliaris, D. nuda and D. velutina decumbent, rarely creeping rooting. Into porridge or fermented to make beer geniculate-spreading annual ; culms geniculate commonly. Morphology of the lower nodes ; nodes glabrous small, ca it is an abundant species..., 30, 36, 45, 54, 60, 70, 72, 76... Karroid Shrubland fonio has been widely used as a staple crop in parts of.! Sanguinalis Scop., Flora of North America North of Mexico, vol atacadas por Nacobbus aberrans Older Fitolitos:.! 10–60 cm hoch, am Grund niederliegend und oft verzweigt, an den Knoten.! To make beer, Flora of North America North of Mexico, vol 1-3 long. Sheaths that are compressed and flat, with hairy blades that are and. Tufted annual 200-600 mm high ; tufted, MA., 2006 digitaria sanguinalis morphology ) Digitaria ciliaris in..: x = 9, 15, y 76, o 108 the genus Digitaria Hall ramificados ; ramas 20-50. Leaves are 2/5- to 1/2-inch wide and 1/3- to 1-inch long perennial lawn, pasture, and bundle strands. Sparsely branched above, or stoloniferous, or sometimes more, decumbent or at!