Comprehensive Description
(
Inglês
)
fornecido por North American Flora
Valota insularis (L.) Chase, Proc. Biol. Soc
Wash. 19 : 188. 1906.
Andropogon insularis L,. Syst. Nat. ed. 10. 1304. 1759.
Panicum lanatum Rottb. Acta Lit. Univ. Haf n. 1 : 269. 1778.
Milium villosum Sw. Prodr. 24. 1788.
Panicum leucophaeum H.B.K. Nov. Gen. & Sp. 1 : 97. 1815.
Trichachne insularis Nees, Agrost. Bras. 86. 1829.
PanicumDuchaissingii Steud. Syn. Gram. 93. 1854.
Tricholaena insularis Griseb. Fl. Brit. W. Ind. 557. 1864.
Syntherisma insulare Millsp. Field Columb. Mus. Publ. Bot. 1 : 473. 1902.
Stems up to 1 m. tall or more, smooth and glabrous; leaf -sheaths overlapping, at least below, glabrous or pubescent; blades up to 3 dm. long and 2 cm. wide, glabrous; panicle up to 4 dm. long, narrow, its usually numerous branches erect; spikelets 4-4.5 mm. long, exclusive of the long hairs, lanceolate, the first scale minute, the second and third scales 5-nerved, pubescent with very long rusty hairs, the second scale about as long as the fruiting scale, the third exceeding it, the fruiting scale chestnut-brown, lanceolate, with a long-acuminate green tip.
Type locality : Jamaica.
Distribution : Florida*and Texas, and in tropical America.
- citação bibliográfica
- George Valentine Nash. 1912. (POALES); POACEAE (pars). North American flora. vol 17(2). New York Botanical Garden, New York, NY
Physical Description
(
Inglês
)
fornecido por USDA PLANTS text
Perennials, Terrestr ial, not aquatic, Rhizomes present, Stolons or runners present, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath hairy, hispid or prickly, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence a panicle with digitately arranged spicate branches, Inflorescence branches more than 10 to numerous, Inflorescence branches 1-sided, Lower panicle branches whorled, R achis angular, Flowers bisexual, Spikelets pedicellate, Spikelets dorsally compressed or terete, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelet with 1 fertile floret and 1-2 sterile florets, Spikelets paired at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes, Spikelets secund, in rows on one side of rachis, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 1 clearly present, the other greatly reduced or absent, Glumes 2 clearly present, Glumes distinctly unequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glume surface hairy, villous or pilose, Glumes 3 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 5-7 nerved, Lemma apex acute or acuminate, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Pa lea membranous, hyaline, Palea about equal to lemma, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
Digitaria insularis
(
Inglês
)
fornecido por wikipedia EN
Digitaria insularis is a species of grass commonly known as sourgrass. It is native to Central and South America and the southern parts of the United States and has been introduced into other parts of the world. It was first described by the German botanist Friedrich Karl Georg Fedde in 1904.
Description
Digitaria insularis is a tufted perennial bunchgrass with very short, swollen rhizomes. The stems reach a height of 80–130 cm and are erect, branched from the lower and middle nodes, swollen bases, with woolly bracts, glabrous internodes and nodes. Sheaths papillose - pilose in their majority, ligule 4–6 mm long, blades linear, 20–50 cm long and 10–20 mm wide. Inflorescence 20–35 cm long, numerous clusters, 10–15 cm long, solitary triquetrous rachis of clusters, 0.4-0.7 mm wide, scabrous; spikelets lanceolate, 4.2-4.6 mm long, paired, caudate, densely covered with trichomes up to 6 mm long, brown or whitish, ranging up to 5 mm from the apex of the spikelet; lower glume triangular to ovate, to 0.6 mm long, enervate, membranous; upper glume 3.5-4.5 mm long, acute, 3-5 nerved, ciliated; inferior lemma as long as spikelet, acuminate, 7-nerved, covered with silky hairs, upper lemma 3.2-3.6 mm long, acuminate, dark brown; anthers 1-1.2 mm long.[3]
Distribution and habitat
Digitaria insularis is native to the tropical and sub-tropical Americas.[4]
It is a common species found in disturbed areas and on beaches, at an altitude of up to 1,400 m (4,593 ft) above sea level.
In its native Brazil, Paraguay, Bolivia and Venezuela it is a pervasive weed out of its natural habitats. It has been introduced in tropical Asia and some Pacific islands and elsewhere. In some countries into which it has been introduced such as Hawaii and Papua New Guinea, it is considered an invasive species.[5]
References
- This article contains material translated from the Spanish Wikipedia.
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Digitaria insularis: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Digitaria insularis is a species of grass commonly known as sourgrass. It is native to Central and South America and the southern parts of the United States and has been introduced into other parts of the world. It was first described by the German botanist Friedrich Karl Georg Fedde in 1904.
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- cc-by-sa-3.0
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- Wikipedia authors and editors
Digitaria insularis
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
El camalote, Digitaria insularis, es una especie de fanerógama en el género Digitaria.
Descripción
Es una planta perenne cespitosa; con tallos que alcanzan un tamaño de 80–130 cm de largo, erectos, ramificados desde los nudos inferiores y medios; bases hinchadas, con brácteas lanosas; entrenudos y nudos glabros. Vainas en su mayoría papiloso-pilosas; lígula de 4–6 mm de largo; láminas lineares, 20–50 cm de largo y 10–20 mm de ancho, escábridas. Inflorescencia 20–35 cm de largo, racimos numerosos, 10–15 cm de largo, solitarios, raquis de los racimos triquetro, 0.4–0.7 mm de ancho, escabroso; espiguillas lanceoladas, 4.2–4.6 mm de largo, pareadas, caudadas, densamente cubiertas con tricomas hasta 6 mm de largo, cafés o blanquecinos, extendiéndose hasta 5 mm del ápice de la espiguilla; gluma inferior triangular a ovada, hasta 0.6 mm de largo, enervia, membranácea, gluma superior 3.5–4.5 mm de largo, aguda, 3–5-nervia, ciliada; lema inferior tan larga como la espiguilla, acuminada, 7-nervia, cubierta por tricomas sedosos, lema superior 3.2–3.6 mm de largo, acuminada, café obscura; anteras 1–1.2 mm de largo.[1]
Distribución y hábitat
Especie común, se encuentra en playas y áreas perturbadas, a una altitud de 0–1400 m; fl y fr mar, jun–dic;[2] nativa del sur de los Estados Unidos a Argentina, también en las Antillas, introducida en Asia tropical y algunas islas del Pacífico.
Taxonomía
Digitaria insularis fue descrita por (L.) Mez ex Ekman y publicado en Just's botanischer Jahresbericht. 31(1, 5): 778. 1904.[1]
- Etimología
Digitaria: nombre genérico derivado del latín "dígitus" = (dígito o dedo) ya que se distinguen por sus alargadas inflorescencias que parecen dedos.[3]
insularis: epíteto latino que significa "insular".
- Sinonimia
-
Agrostis villosa Steud.
-
Agrostis villosa Chaix
-
Andropogon fabricii Henrard
-
Andropogon insularis L.
-
Digitaria insularis (L.) Fedde
-
Digitaria leucophaea (Kunth) Stapf
-
Milium hirsutum P.Beauv.
-
Milium villosum Sw.
-
Monachne unilateralis Roem. & Schult.
-
Nardus dactyloides Rol. ex Rottb.
-
Panicum duchaissingii Steud.
-
Panicum falsum Steud.
-
Panicum gavanianum Steud. ex Döll
-
Panicum gavanianum Steud. ex Lechler
-
Panicum insulare (L.) G.Mey.
- Panicum insulare var. insulare
-
Panicum lanatum Rottb.
-
Panicum leucophaeum Kunth
-
Panicum leucophaeum Benth.
-
Panicum saccharoides A.Rich.
-
Saccharum polystachyum Siebold ex Kunth
-
Scirpoides fabri Rottb.
-
Syntherisma insularis (L.) Millsp.
-
Trichachne insularis (L.) Nees
-
Tricholaena insularis (L.) Griseb.
-
Tricholaena saccharoides Griseb.
-
Valota insularis (L.) Chase[4][5]
Referencias
-
↑ a b «Digitaria insularis». Tropicos.org. Missouri Botanical Garden. Consultado el 6 de septiembre de 2013.
-
↑ Neill 2116, Stevens 9138;
-
↑ (en inglés) Watson L, Dallwitz MJ. (2008). «The grass genera of the world: descriptions, illustrations, identification, and information retrieval; including synonyms, morphology, anatomy, physiology, phytochemistry, cytology, classification, pathogens, world and local distribution, and references». The Grass Genera of the World. Consultado el 21 de enero de 2010.
-
↑ Digitaria insularis en PlantList
-
↑ «Digitaria insularis». World Checklist of Selected Plant Families.
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Digitaria insularis: Brief Summary
(
Espanhol; Castelhano
)
fornecido por wikipedia ES
El camalote, Digitaria insularis, es una especie de fanerógama en el género Digitaria.
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Espigas
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En su hábitat
- licença
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Digitaria insularis: Brief Summary
(
Francês
)
fornecido por wikipedia FR
Digitaria insularis est une espèce de plantes monocotylédones de la famille des Poaceae, originaire des régions tropicales et subtropicales d'Amérique.
C'est une plante herbacée, vivace par ses rhizomes, qui se rencontre le long des routes et des voies ferrées, dans les pâturages, les champs cultivés et les forêts perturbées.
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Digitaria insularis: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Digitaria insularis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (L.) Mez ex Ekman mô tả khoa học đầu tiên năm 1912.
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