Distribution in Egypt
(
İngilizce
)
Bibliotheca Alexandrina LifeDesk tarafından sağlandı
Nile region, oases, Egyptian desert, Res Sea coastal strip, Gebel Elba and Sinai (St.Katherine).
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Global Distribution
(
İngilizce
)
Bibliotheca Alexandrina LifeDesk tarafından sağlandı
Throughout the tropics and subtropics.
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Habitat
(
İngilizce
)
Bibliotheca Alexandrina LifeDesk tarafından sağlandı
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Life Expectancy
(
İngilizce
)
Bibliotheca Alexandrina LifeDesk tarafından sağlandı
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Comments
(
İngilizce
)
eFloras tarafından sağlandı
Aristida adscensionis is a pan-tropical weed and morphologically extremely variable. There are no discontinuities between var.
adscensionis and either var.
pumila or var.
ehrenbergii and the distinctions between them are hardly worth maintaining. The same may be said of
Aristida depressa, an extreme form completely intergrading with
Aristida adscensionis. The distinction between annuals and perennials in the tropics and subtropics is not always very clear and often appears to be a facultative difference of little taxonomic consequence. This is particularly true in
Aristida adscensionis where the separation of perennial plants as
Aristida caerulescens cannot be justified. Indeed, perennial plants, otherwise indistinguishable from typical var.
ehrenbergii are seen in the Middle East.
Six-weeks Tripleawn (a North American name) is probably grazed by cattle, but nothing more definite about its economic value in Pakistan seems to be known.
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Comments
(
İngilizce
)
eFloras tarafından sağlandı
Aristida adscensionis is a widely distributed, variable, annual pioneer of dry, open places, recognized by its long, parallel-sided, flattened lemma often exserted from the glumes. It is used for forage.
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Description
(
İngilizce
)
eFloras tarafından sağlandı
Annual. Culms tufted, erect or geniculate at base, 15–55 cm tall, branched. Leaf sheaths smooth, glabrous, shorter than internodes, laxly overlapping; leaf blades involute, 3–20 cm, finely pointed; ligule ca. 0.5 mm. Panicle usually narrow, loosely contracted, 4–20 cm; branches short, ascending, inserted singly on main axis. Spikelets gray-green or purplish green; glumes subequal or unequal with upper longer, 1-veined, scabrid on vein, lower glume lanceolate-oblong, 4–6.8 mm, acute, upper glume linear, 5–8 mm, obtuse to emarginate or apiculate; callus ca. 0.5 mm, narrowly obtuse; lemma linear, distinctly longer than upper glume, 7–11 mm, laterally compressed, smooth or rarely scabrid in upper half, keel scabrid upward; awn branches arising directly from lemma apex, central branch 1–2.5 cm, laterals slightly shorter. Anthers 1.8–2 mm. Fl. and fr. Jun–Oct.
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Description
(
İngilizce
)
eFloras tarafından sağlandı
Annual or short-lived perennial, forming erect or sprawling tufts 10-100 cm high. Leaf-blades linear, up to 20 cm long and 3 mm wide, expanded or folded. Panicle up to 30 cm long, occasionally lax, usually ± contracted about the main branches, sometimes narrow and dense. Spikelets pallid, green or purple; glumes unequal, linear-lanceolate to lanceolate, scaberulous on the keel, emarginate and mucronate or acute but never awned, the upper 5-10 mm long, the lower 1-3 mm shorter; lemma 5-13(17) mm long, sometimes no longer than the glumes but usually exceeding the upper by 1-2 mm or more, laterally compressed, convolute, scabrid on the keel or sometimes generally scaberulous on the upper part, passing into the awn without constriction or articulation; callus narrowly oblong, 0.5 mm long, obtuse; central branch of the awn 7-25 mm long, the laterals subequal or occasionally conspicuously shorter.
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Distribution
(
İngilizce
)
eFloras tarafından sağlandı
Widely distributed in Old & New Worlds.
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Distribution
(
İngilizce
)
eFloras tarafından sağlandı
Gansu, Hebei, Nei Mongol, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang, Yunnan [tropical and warm-temperate regions of the world].
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Distribution
(
İngilizce
)
eFloras tarafından sağlandı
Distribution: Pakistan (Sind, Baluchistan, Punjab, N.W.F.P., Gilgit & Kashmir); throughout the tropics.
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Elevation Range
(
İngilizce
)
eFloras tarafından sağlandı
2000 m
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Flower/Fruit
(
İngilizce
)
eFloras tarafından sağlandı
Fl. & Fr. Per.: March-December.
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Habitat
(
İngilizce
)
eFloras tarafından sağlandı
Dry mountain slopes, rocky fissures, and along river banks; 200–1800 m.
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Synonym
(
İngilizce
)
eFloras tarafından sağlandı
Aristida adscensionis var. vulpioides (Hance) Hackel ex Henrard; A. heymannii Regel; A. vulgaris Trinius & Ruprecht; A. vulpioides Hance; Chaetaria adscensionis (Linnaeus) P. Beauvois.
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Distribution
(
İspanyolca; Kastilyaca
)
IABIN tarafından sağlandı
Chile Central
Physical Description
(
İngilizce
)
USDA PLANTS text tarafından sağlandı
Annuals, Terrestrial, not aquatic, Rhizomes present, Rhizome short and compact, stems close, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stems branching above base or distally at nodes, Stem internodes solid or spongy, 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 smooth, glabrous, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Leaf blades more or less hairy, Ligul e present, Ligule a fringe of hairs, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence with 2-10 branches, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes distinctly unequal, Glumes shorter than adjacent lemma, Glumes equal to or longer than adjacent lemma, Glumes 1 nerved, Lemma coriaceous, firmer or thicker in texture than the glumes, Lemma 3 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma distinctly awned, more than 2-3 mm, Lemma with 3 awns, Lemma awns about equal in length, Lemma awn 1-2 cm long, Lemma awn 2-4 cm long or longer, Lemma awned from tip, Lemma awns straight or curved to base, Lemma awn once geniculate, bent once, Lemma margins inrolled, tightly covering palea and caryopsis, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea shorter than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.
Aristida adscensionis
(
İngilizce
)
wikipedia EN tarafından sağlandı
Aristida adscensionis is a species of grass known by the common name sixweeks threeawn.[1] It is native to the Americas but it is distributed nearly worldwide. It grows easily in disturbed and waste areas and has potential to become a weed.[2]
Description
This annual bunchgrass is quite variable in appearance, its size and shape determined largely by environmental conditions. It grows in a tuft to heights between 5 and 80 centimeters. It forms a narrow inflorescence of spikelets, each fruit with three awns.
References
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- Wikipedia authors and editors
Aristida adscensionis: Brief Summary
(
İngilizce
)
wikipedia EN tarafından sağlandı
Aristida adscensionis is a species of grass known by the common name sixweeks threeawn. It is native to the Americas but it is distributed nearly worldwide. It grows easily in disturbed and waste areas and has potential to become a weed.
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Aristida adscensionis
(
İspanyolca; Kastilyaca
)
wikipedia ES tarafından sağlandı
Aristida adscensionis es una especie de planta herbácea perteneciente a la familia de las poáceas. Es nativa de las Américas, y se distribuye por casi todo el mundo. Crece fácilmente en áreas perturbadas y desechadas y tiene potencial para convertirse en una maleza.
Descripción
Es una planta anual tussok que es bastante variable en apariencia, ya que su tamaño y forma está determinado en gran medida por las condiciones ambientales. Crece alcanzando una altura de entre 5 y 80 centímetros. Forma una estrecha inflorescencia de espiguillas, cada fruta con tres aristas .
Los tallos de 1–8 dm de alto, son erectos o decumbentes, ramificados desde los nudos inferiores, glabros. Las hojas caulinares, rectas; vainas glabras; láminas hasta 25 cm de largo y 1 mm de ancho, generalmente involutas, puberulentas en la haz. Panícula angosta, 5–15 cm de largo, densa, ramas generalmente adpresas, escabriúsculas, con espiguillas hasta la base; pedicelos adpresos, las espiguillas agrupadas; glumas 1-nervias, escabrosas en la quilla, la inferior 4.5–6 mm de largo, la superior 6–9 mm de largo; lema 6–9 mm de largo, convoluta, escabrosa hacia el ápice; columna ausente; aristas 3, 6–16 mm de largo, aplanadas, la central ligeramente más larga que las laterales, recta o divergente, las laterales rectas; callo 0.3–0.4 mm de largo, obtuso, piloso, los tricomas de 0.6–1 mm de largo; anteras 1 o 3, 0.8–1.5 mm de largo.[1]
Taxonomía
Aristida adscensionis fue descrita por Carlos Linneo y publicado en Species Plantarum 1: 82. 1753.[1]
- Citología
Número de cromosomas de Aristida adscensionis (Fam. Gramineae) y táxones infraespecíficos: n=11[2]
- Etimología
El nombre del género proviene del latín Arista o del griego Aristos (cerdas, o aristas del maíz).
adscensionis: epíteto
- Sinonimia
-
Aristida abyssinica (Trin. & Rupr.) Henrard
-
Aristida aethiopica (Trin. & Rupr.) Trin. & Rupr. ex Henrard
-
Aristida arabica Trin. & Rupr.
-
Aristida bromoides Kunth
-
Aristida canariensis Willd.
-
Aristida cardosoi Cout.
-
Aristida coarctata Kunth
-
Aristida confusa (Trin. & Rupr.) Trin. & Rupr. ex Henrard
-
Aristida curvata (Nees) Nees ex A.Rich.
-
Aristida debilis Mez
- Aristida depressa Retz.
-
Aristida ehrenbergii Trin. & Rupr.
-
Aristida elatior Cav.
-
Aristida fasciculata Torr.
-
Aristida festucoides Poir.
-
Aristida gigantea L.f.
-
Aristida grisebachiana E.Fourn.
-
Aristida guineensis Trin. & Rupr.
-
Aristida heymannii Regel
-
Aristida humilis Kunth
-
Aristida interrupta Cav.
-
Aristida laxa Willd. ex Trin. & Rupr.
-
Aristida luzoniensis Cav.
-
Aristida macrochloa Hochst.
-
Aristida maritima Steud.
-
Aristida mauritiana Kunth
-
Aristida mauritiana Hochst. ex A.Rich.
-
Aristida modatica Steud.
-
Aristida mongholica Trin.
-
Aristida nana Steud.
-
Aristida nigrescens J.Presl
-
Aristida nutans Steud.
-
Aristida paniculata Forssk.
-
Aristida peruviana Beetle
-
Aristida pumila Decne.
-
Aristida pusilla Trin. & Rupr.
-
Aristida pygmaea Trin. & Rupr.
-
Aristida racemosa Spreng.
-
Aristida schaffneri E.Fourn.
-
Aristida senegalensis (Trin. & Rupr.) Henrard
-
Aristida setacea Steud.
-
Aristida simplicissima Steud.
-
Aristida spicigera Trin. & Rupr.
-
Aristida strictiflora Trin. & Rupr.
-
Aristida submucronata Schumach. & Thonn.
-
Aristida swartziana Steud.
-
Aristida teneriffae Steud.
-
Aristida thonningii Trin. & Rupr.
-
Aristida viciosorum Pau
-
Aristida vulgaris Trin. & Rupr.
-
Aristida vulpioides Hance
-
Chaetaria adscensionis (L.) P.Beauv.
-
Chaetaria bromoides (Kunth) Roem. & Schult.
-
Chaetaria canariensis (Willd.) P.Beauv.
-
Chaetaria coarctata (Kunth) Roem. & Schult.
-
Chaetaria coerulescens (Desf.) P.Beauv.
-
Chaetaria curvata Nees
-
Chaetaria depressa (Retz.) P.Beauv.
-
Chaetaria elatior (Cav.) P.Beauv.
-
Chaetaria fasciculata (Torr.) Schult. & Schult.f.
-
Chaetaria festucoides (Poir.) P.Beauv.
-
Chaetaria forskolii Nees
-
Chaetaria gigantea (L.f.) P.Beauv.
-
Chaetaria humilis (Humb. & Bonpl.) Roem. & Schult.
-
Chaetaria interrupta (Cav.) P.Beauv.
-
Chaetaria luzoniensis (Cav.) P.Beauv.
-
Chaetaria mauritiana (Kunth) Nees
-
Chaetaria nana Nees ex Steud.[3]
Véase
Referencias
- lisans
- cc-by-sa-3.0
- telif hakkı
- Autores y editores de Wikipedia
Aristida adscensionis: Brief Summary
(
İspanyolca; Kastilyaca
)
wikipedia ES tarafından sağlandı
Aristida adscensionis es una especie de planta herbácea perteneciente a la familia de las poáceas. Es nativa de las Américas, y se distribuye por casi todo el mundo. Crece fácilmente en áreas perturbadas y desechadas y tiene potencial para convertirse en una maleza.
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- Autores y editores de Wikipedia
Aristida adscensionis
(
Portekizce
)
wikipedia PT tarafından sağlandı
Aristida adscensionis é uma espécie de planta com flor pertencente à família Poaceae.
A autoridade científica da espécie é L., tendo sido publicada em Species Plantarum 1: 82. 1753.[1]
Portugal
Trata-se de uma espécie presente no território português, nomeadamente no Arquipélago da Madeira.
Em termos de naturalidade é nativa da região atrás indicada.
Protecção
Não se encontra protegida por legislação portuguesa ou da Comunidade Europeia.
Referências
-
↑ Tropicos.org. Missouri Botanical Garden. 7 de Outubro de 2014 http://www.tropicos.org/Name/25507157>
Bibliografia
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- Autores e editores de Wikipedia
Aristida adscensionis: Brief Summary
(
Portekizce
)
wikipedia PT tarafından sağlandı
Aristida adscensionis é uma espécie de planta com flor pertencente à família Poaceae.
A autoridade científica da espécie é L., tendo sido publicada em Species Plantarum 1: 82. 1753.
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Aristida adscensionis
(
Vietnamca
)
wikipedia VI tarafından sağlandı
Aristida adscensionis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được L. mô tả khoa học đầu tiên năm 1753.[1]
Hình ảnh
Chú thích
Liên kết ngoài
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Aristida adscensionis: Brief Summary
(
Vietnamca
)
wikipedia VI tarafından sağlandı
Aristida adscensionis là một loài thực vật có hoa trong họ Hòa thảo. Loài này được L. mô tả khoa học đầu tiên năm 1753.
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三芒草
(
Çince
)
wikipedia 中文维基百科 tarafından sağlandı
二名法 Aristida adscensionisL. 三芒草（学名：Aristida adscensionis）是禾本科三芒草属的植物。分布于全世界温带地区以及中国大陆的华北、东北、山东及江苏、西北、河南等地，生长于海拔300米至1,800米的地区，一般生长在干山坡、河滩沙地、黄地坡和石隙内，目前尚未由人工引种栽培。
别名
三枪茅（钟观光拟）
参考文献
- 昆明植物研究所. 三芒草. 《中国高等植物数据库全库》. 中国科学院微生物研究所. [2009-02-24]. （原始内容存档于2016-03-05）.
这是一篇與
植物相關的
小作品。你可以通过
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三芒草: Brief Summary
(
Çince
)
wikipedia 中文维基百科 tarafından sağlandı
三芒草（学名：Aristida adscensionis）是禾本科三芒草属的植物。分布于全世界温带地区以及中国大陆的华北、东北、山东及江苏、西北、河南等地，生长于海拔300米至1,800米的地区，一般生长在干山坡、河滩沙地、黄地坡和石隙内，目前尚未由人工引种栽培。
Bài viết chủ đề Họ Hòa thảo này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. 
这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 
