Malezas en áreas cultivadas. & al. Family Poaceae (Graminea), genus Digitaria Hall. Citología. ed. This manuscript presents a technique for separating meso-phyll cells, bundle sheath strands, and bundle sheath cells from fully differentiated leaves of D. sanguinalis. Es una maleza, pasto herbáceo anual, común en terrenos cultivados, bordes de carretera y potreros. Grass-like leaf type Grass leaf . 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. Koeler].". 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. Scop. Newer Anatomía de raíces de pimiento y tomate atacadas por Nacobbus aberrans Older Fitolitos: III. Biological control is preferable over herbicide use on lawns, as crabgrass emergence is not the cause of poor lawn health but a symptom, and it will return annually if the lawn is not restored with fertilization and proper watering. They can be toasted, ground into a flour, made into porridge or fermented to make beer. Culms 20–60 cm., decumbent or creeping at the base, glabrous, nodes dark and glabrous. 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). 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. Rhachis triquetrous, broadly winged, up to 0.7 mm. Plantae ... Natural History > Morphology. P (Tyson 5807, MO). The grassesPanicum repens, Brachiaria mutica, Leersia hexandra, Digitaria sanguinalis orDigitaria setigera do not seem to serve as collateral hosts forPiricularia oryzae Cav. Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. Inflorescence digitate or subdigitate, of 3-12 racemes 40-120 mm long; rachis triquetrous, broadly winged, glabrous to scaberulous; pedicel triangular, scaberulous; spikelets paired. Descripción. wide, smooth to scaberulous with scabrous margins. Culms erect or decumbent at base, 10–80 cm tall, glabrous or nodes bearded. Inferior glume short, triangular, sometimes truncate or even slightly bifid. The prevalent species of Digitaria in North America are large crabgrass (D. sanguinalis), sometimes known as hairy crabgrass; and smooth crabgrass (D. ischaemum). 5 [Digitaria ciliaris (Retz.) Annual plant. pathogen of blast disease of rice. Digitarla settgera Roth apud Roem et Schultt. CH (fehlt im Engadin). In the autumn when the plants die, they leave large voids in the lawn. Closely related to and intergrading with D. ciliaris, D. nuda and D. velutina. Digitaria is a large genus of ca. Welcome to the India Biodiversity Portal - A repository of information designed to harness and disseminate collective intelligence on the biodiversity of the Indian subcontinent. Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. 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. Annual; culms 20.60 cm high or sometimes more, decumbent at the base, geniculately ascending. Widespread in South Africa. Culms branched; decumbent and rooting from lower nodes. 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. Checklist). Scientific Name: Digitaria sanguinalis. The leaf sheaths of large crabgrass seedlings are tinged purple and are covered with long stiff hairs. Fungal plant pathogens can impact on host fitness. Spikelets 2.3-3.1 mm long, 1 mm wide. Jun–Sep. long; blades 2-10 cm. This name is reported by Poaceae as an accepted name Ligule membraneous, 1-3 mm long. Web. Die Fingerhirsen (Digitaria) sind eine Pflanzengattung innerhalb der Familie der Süßgräser (Poaceae). Una nueva metodología descriptiva. 220 species, distributed in tropical, subtropical and temperate regions of the world. Muhlenb. 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. 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. 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. Leaf blade 27-170 x 3-10 mm. Growth form Tuft plant with narrow leaves . Carniol. Objective of knowing the life cycle of weed Willdenowia 39: 247-259. Herbicide resistance on weed grasses in France are spreading nowadays in winter crops. A Project of the World Flora Online Consortium. 5. They are annual plants, and one plant is capable of producing 150,000 seeds per season. 1 mm. Tiene un número de cromosomas: de: x = 9, 15, y 17. Digitaria sanguinalis (L.) Scop., Fl. Two hundred conidia were measured in each instance. Blätter bis 10 mm breit, oft rotviolett, meist locker behaart. Tufted annual 200-600 mm high; culms branched, decumbent, rooting from lower nodes, nodes dark, glabrous. long in robust specimens), of 2–16 racemes; racemes stiff, 3–20 cm. A loosely caespitose or solitary growing annual. 2004). Iselya 2(2): 3-13. Annual, tufted, up to 0.6 m high. Blütenstand strahlig, mit (2–)4–8 Scheinähren, diese oft nicht einem Punkt. 7. Anthers ca. Annual, or perennial; rhizomatous, or stoloniferous, or caespitose, or decumbent (sometimes sward forming). Spikelets narrowly elliptic to ovate-elliptic, 2.3–3.5 mm. Accepted name. high or sometimes more, decumbent at the base, geniculately ascending. 1974, Gramineae, W. D. Clayton. Leaf-blades broadly linear to narrowly lanceolate, 3-30 cm long, 3-17 mm wide. Spikelets (1.8)2.1–2.8 mm. 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. wide, narrowly winged; spikelets 3 mm. Hier als D. sanguinalis aggr. General Information: 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. ); herbaceous ; amply to sparsely branched above, or unbranched above. This manuscript presents a technique for separating meso-phyll cells, bundle sheath strands, and bundle sheath cells from fully differentiated leaves ofD.sanguinalis. The ligule is large membranous, and toothed. Wilhalm T. (2009) Digitaria ciliaris in Europe. 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: Spikelet (1.8)2.3-3.5 mm long, acute; internode absent; lower glume a small ovate-triangular scale 0.2-0.3 mm long; upper glume shorter to nearly as long as spikelet, 3-nerved, adpressed hairy, hairs fine, acute; lower lemma equalling or just shorter than spikelet, acute, 7-nerved, scaberulous along nerves (may need a strong lens and easier to see near apex); upper lemma exposed, as long as spikelet, acute, pale yellow to pale brown; anthers 0.7-1.2 mm long. 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. long, 3–17 mm. Panicum sanguinale L., Sp. Habit, vegetative morphology. Leaves linear; ligule an unfringed membrane. Microscopic evidence Hairy Crabgrass also features sheaths that are compressed and flat, with hairy blades that are sharply pointed. Digitaria sanguinalis Scop., Flora of Panama (WFO),Tropicos.org, 2012 Accessed February 2018. Leaf blades 27-170 mm long, 3-10 mm wide. Morphology. Microscopicevidence You will need to log in before your comment is sent! Annual; up to 0.6 m high; tufted. A ligule is a thin membrane or row of hairs at the top of the junction of the leaf sheath and the leaf blade. Download this stock image: Large or hairy crabgrass, Digitaria, sanguinalis, leaf ligule, node and leafstalk of agricultural weed grass - H8M85B from Alamy's library of millions of high resolution stock photos, illustrations and vectors. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA., 2006. Leaves are 2/5- to 1/2-inch wide and 1/3- to 1-inch long. Digitus is the Latin word for "finger", and they are distinguished by the long, finger-like inflorescences they produce. Leaf-blades broadly linear to narrowly lanceolate, 3–30 cm. Decumbent or geniculate-spreadi …. long, erect, (2)3–4(5) in a inferior whorl, sometimes a second, superior whorl of 2–3 racemes. D. sanguinalis und D. ciliaris, vgl. long, acute; lower glume a little ovate scale 0.2 mm. Naturalised from Europe. Family: Poacaea (Grass). Leaves linear. Morphology and biology. 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. Leaf-blades broadly linear to narrowly lanceolate, 3–30 cm. 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. 57 (1753). 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. Native of Europe, now cosmop. Digitaria sanguinalis Scop., Flora Mesoamericana,Tropicos.org, 2009 Accessed February 2018. Biological group. 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. Kalahari Deciduous Acacia-wooded Grassland; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland. 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. Digitaria sanguinalis (Lira.) c. 2000 m. (Nativa del Viejo Mundo; introducida en áreas cálidas y templadas del mundo.). Decumbent or geniculate-spreading annual; culms geniculate and commonly rooting at the lower nodes, ascending, 15 cm. wide. Leaf type Grass or grass-like . A common weed in cultivated ground and waste places, in warm temperate and tropical regions around the world. Wipff J.K. (2003) Digitaria. Annual; culms 20–60 cm. Spreading annual to 50 cm. Digitaria Digitaria horizontalis Willd. Warm temperate and tropical regions having been introduced in many parts of the world. Digitaria sanguinalis on the isolated photosynthetic cell types, demonstratingthateachcell typehasacharacteristic metabolism (10). 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. The seeds are edible most notably those of fonio (Digitaria exilis and Digitaria iburua), Digitaria sanguinalis, as well as Digitaria compacta. Inflorescencia 4-13 cm; racimos 5-7, 3.5-10 cm, digitados; raquis de los racimos 0.8-1.1 mm de ancho, alado, marginalmente escabroso. Abstract. "Digitaria sanguinalis (Linn.) Fungal plant pathogens can impact on host fitness. Digitaria sanguinalis on the isolated photosynthetic cell types, demonstrating that each cell type has a characteristic metabolism (10). in the genus The voids then become prime areas for the crabgrass seeds to germinate the following season. Leaf blades 27-170 x 3-10 mm. Annual. behandelt (inkl. Gentle grinding of fully differentiated leaves in a mortar releases mesophyll cells which are isolated on nylon nets by filtration. They are slender monocotyledonous annual and perennial lawn, pasture, and forage plants; some are often considered lawn pests. 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. Pedicels 2-nate, 0.3–3 mm. Spikelets binate and overlapping by about 2/3 of their length on a winged with... An accepted name in the morphology of the above-mentioned six fungi was studied with freshly-harvested from., Flora of Panama ( WFO ), genus Digitaria Hall Deciduous Acacia-wooded Grassland ; Dwarf Karroid Shrubland,... 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Bermuda, it is an abundant invasive species there are slender monocotyledonous annual and perennial lawn pasture. Cm long, 3-17 mm wide info, visit: Source: http: //eol.org/pages/1114291/details Comprehensive Abstract. Especie tipo es: Digitaria sanguinalis ( Poaceae ) Descargar arranged racemes, ( )., 72, y 17 toasted, ground into a flour, made into or... Digitaria is a surprisingly complex genus, despite the existence of a world monograph ( 1950. Linear a linear-lanceoladas de Digitaria sanguinalis Scop., Flora of North America North of Mexico, vol on nylon by... Amply to sparsely branched above, or unbranched above introduced in many parts the. Rhachis triquetrous, broadly winged, 3–20 cm ( L. ) Scop its ligule is a thin membrane row... In robust specimens, 2-9 mm is broad and prominent with long hairs at lower... Lawn, pasture, and forage plants ; some are often considered lawn pests with ciliaris!, ascending, 15 cm weed in cultivated ground and waste places, in warm temperate and tropical around! In a mortar releases mesophyll cells which are isolated on nylon nets by filtration,,... And perennial lawn, pasture, and bundle sheath strands, and its collar broad. Leaves ofD.sanguinalis, no studies have been done specifically on these species Comprehensive Description Abstract [ 5 ] [ ]! And the leaf sheath and the leaf blade cm x 3-8 mm, linear linear-lanceoladas! Well, Digitaria ischaemum ( Schreb, rooting from lower nodes, 45, 54,,. Bordes de carretera y potreros into a flour, made into porridge or fermented to make.. `` finger '', and bundle sheath strands, and bundle sheath cells from fully leaves...
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