Comments
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İngilizce
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eFloras tarafından sağlandı
The number of glomerules per inflorescence, stamen length vs.versus perianth length, and tepal shape have separately and in combination been used to distinguish a number of taxa at various nomenclaturalorial ranks. These characters, however, vary considerably across the distribution of the species (broad sense) and do so independently of one another to the point that if separate taxa are recognized, they pass insensibly among each other.
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Description
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İngilizce
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eFloras tarafından sağlandı
Herbs, perennial, occasionally tufted, sometimes rhizomatous, 3--13 dm. Rhizomes short, knotty. Culms compressed. Leaves basal and cauline; auricles 0.5--1.5 mm, apex rounded, membranous; basal blade flat, 20--4.5 dcm x 1.5--5 mm, cauline reduced. Inflorescences glomerules, (2--)5--200, each with (1--)2--10(--20) flowers, mostly open, 3--10(--15) cm; primary bract shorter than inflorescence. Flowers: tepals dark brownish, usually with green midstripe, outer series ovate-lanceolate, 1.8--3.2 mm, margins broad, clear, awned or not, apex acutish; inner series ovate to lanceolate, 2--3.5 mm, slightly longer than outer series, apex obtuse to acute, awned or not; stamens 3, opposite outer tepals, shorter to longer than tepals, filaments 1.1--2.5 mm, anthers 0.3--1.2 mm; style 0.3 mm. Capsules brown and sometimes dark spotted, 3-locular, obovoid to nearly globose, 1.8--2.9 mm, shorter to longer than perianth. Seeds yellow to light brown, fusiform, 0.4--0.7 mm, not tailed. 2n = 38, 40.
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Habitat & Distribution
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İngilizce
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eFloras tarafından sağlandı
Flowering and fruiting late spring--fall. Moist to wet sandy, peaty, or clayey soils, usually in open areas including bogs, shores, marshes, and ditches; N.S., Ont.; Ala., Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., W.Va., Wis.; Mexico; West Indies (Cuba); Central America.
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Synonym
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İngilizce
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eFloras tarafından sağlandı
Juncus aristulatus Michaux; J. aristulatus var. pinetorum Coville; J. biflorus Elliott.; J. longii Fernald; J. marginatus var. aristulatus (Michaux) Coville; J. marginatus var. biflorus (Elliott.) Chapman; J. marginatus var. odoratus Torrey; J. marginatus var. paucicapitatus Engelmann; J. marginatus var. setosus Coville; J. marginatus var. vulgaris Engelmann; J. odoratus (Torrey) Steudel; J. setosus (Coville) Small
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Juncus marginatus
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İngilizce
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wikipedia EN tarafından sağlandı
Juncus marginatus is a species of flowering plant, it is a type of rush with the common names of margined rush and grass-leaf rush.[2]
Description
Juncus marginatus is a grass-like, herbaceous, short-lived perennial growing from short rhizomes.[3] Plants produce dense tufts or clumps growing 30-130 cm tall.[4] The plants are sometimes rhizomatous. The leaf blades are flat. The flowers are grouped together into a terminal inflorescence called a glomerulus.[5] Each flower has three stamens and three sharply acute sepals that are reddish-brown in color. The plump and ribbed seeds are produced in a rounded and beakless capsule. The small yellow to light brown seeds are spindle-shaped, and around 0.5mm in length and lack a tail but have sharp points on either end (apiculate).[3][4] The diploid chromosome count is 38.[4]
Distribution and habitat
Juncus marginatus grows in North America in the Eastern and Southeastern US, ranging to Texas and South Dakota.[5] It is also found Ontario Canada, California, Colorado, New Mexico, Oregon, New Mexico, the West Indies (Cuba), and Central America; where is found growing in moist to wet bogs, on shorelines, in marshes and ditches - with sandy, peaty, or clayey soils.[4] One historic population existed in Minnesota until 1999 when other small populations were found in Anoka County; because of its rarity it was listed as an endangered specie in the state.[3] In Minnesota the species is found growing in shallow wetlands/prairies of the Anoka Sand Plain where the normally dry sandy ground dips below the water table.[3]
References
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- Wikipedia authors and editors
Juncus marginatus: Brief Summary
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İngilizce
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wikipedia EN tarafından sağlandı
Juncus marginatus is a species of flowering plant, it is a type of rush with the common names of margined rush and grass-leaf rush.
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Juncus marginatus
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Vietnamca
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wikipedia VI tarafından sağlandı
Juncus marginatus là một loài thực vật có hoa trong họ Juncaceae. Loài này được Rostk. mô tả khoa học đầu tiên năm 1801.[1]
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Liên kết ngoài
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Juncus marginatus: Brief Summary
(
Vietnamca
)
wikipedia VI tarafından sağlandı
Juncus marginatus là một loài thực vật có hoa trong họ Juncaceae. Loài này được Rostk. mô tả khoa học đầu tiên năm 1801.
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- Wikipedia tác giả và biên tập viên
