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Comments ( الإنجليزية )

المقدمة من eFloras
In the northern part of its range, Scirpus georgianus occurs in disjunct localities. It is found as far north as Prince Edward Island; it seldom grows in New England. It is unknown from Michigan; it occurs in northern Wisconsin. The species is probably a recent introduction in at least some of these disjunct localities. Most old reports of S. atrovirens var. georgianus from the northeastern United States and eastern Canada are based on specimens of S. hattorianus.

The three cytotypes of Scirpus georgianus are identical morphologically; they seem to occur in slightly different habitats (A. E. Schuyler 1976).

Scirpus georgianus is distinctive in having the perianth bristles absent or rudimentary (seldom more than 0.2 times as long as achene and usually smooth). Rarely, a few achenes will be found with bristles up to 0.75 times as long as achene and with a few barbs near the tip. Such plants have been confused with S. hattorianus in the past. Scirpus georgianus differs in having fewer bristles (never more than three per achene, and usually only one well developed) and in the bristles either being smooth or having the barbs confined to the extreme tip. In addition, S. georgianus differs from S. hattorianus in having less black pigmentation in the scales (thus the heads tend to appear brownish, not blackish).

In Scirpus georgianus, as in other species of Scirpus, the filaments often persist long after the anthers have been shed, and specimens of S. georgianus are sometimes misnamed because the filaments are mistaken for perianth bristles. Only three filaments per flower occur and they are thicker than the bristles and never toothed or barbed.

Scirpus georgianus occasionally hybridizes with S. atrovirens and S. hattorianus.

Scirpus georgianus, S. flaccidifolius, S. hattorianus, S. atrovirens, and S. pallidus differ only in minute characteristics, and it may be necessary to compare specimens of them in order to make reliable identifications. Despite their close morphologic similarities, their characteristics are reasonably consistent even in areas where they coexist and occasionally hybridize.

ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Description ( الإنجليزية )

المقدمة من eFloras
Plants cespitose; rhizomes short, tough, fibrous. Culms: fertile ones upright or reclining; nodes without axillary bulblets. Leaves 6–12 per culm; sheaths of proximal leaves green or brownish; proximal sheaths and blades with septa few to many, usually not conspicuous; blades 19–50 cm × 6–13 mm. Inflorescences terminal; rays ascending or divaricate (often both in the same inflorescence), proximal branches smooth, distal branches scabrous or scabrellous, rays often bearing axillary bulblets; bases of involucral bracts green, margins brown or at least speckled with red-brown, not glutinous. Spikelets in clusters of 4–35 (largest cluster with 16 or more), spikelets sessile, ovoid, 2–4 × 1–2 mm; scales brown or blackish brown with pale midribs, elliptic, 1–1.8 mm, apex mucronate, mucro 0.1–0.3 mm. Flowers: perianth bristles persistent when present, 0–3, slender, straight or curved, much shorter than (rarely to 0.7 times as long as) achene, smooth or rarely with round-tipped, retrorse teeth near apex, enclosed within scales; styles 3-fid. Achenes pale brown to almost white, elliptic or obovate in outline, plumply trigonous or plano-convex, 0.6–1.2 × 0.4–0.5 mm. 2n = 50, 52, 54.
ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
المشروع
eFloras.org
النص الأصلي
زيارة المصدر
موقع الشريك
eFloras

Distribution ( الإنجليزية )

المقدمة من eFloras
Ont., P.E.I.; Ala., Ark., Conn., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Minn., Miss., Mo., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.; introduced, New Zealand.
ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
المشروع
eFloras.org
النص الأصلي
زيارة المصدر
موقع الشريك
eFloras

Flowering/Fruiting ( الإنجليزية )

المقدمة من eFloras
Fruiting late spring–early summer (Jun–Jul).
ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
المشروع
eFloras.org
النص الأصلي
زيارة المصدر
موقع الشريك
eFloras

Habitat ( الإنجليزية )

المقدمة من eFloras
Moist meadows, marshes, ditches; 0–600m.
ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
المشروع
eFloras.org
النص الأصلي
زيارة المصدر
موقع الشريك
eFloras

Synonym ( الإنجليزية )

المقدمة من eFloras
Scirpus atrovirens Willdenow var. georgianus (R. M. Harper) Fernald
ترخيص
cc-by-nc-sa-3.0
حقوق النشر
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
الاقتباس الببليوغرافي
Flora of North America Vol. 23: 5, 10, 11, 12, 13, 15 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
المصدر
Flora of North America @ eFloras.org
محرر
Flora of North America Editorial Committee
المشروع
eFloras.org
النص الأصلي
زيارة المصدر
موقع الشريك
eFloras

Scirpus georgianus ( الإنجليزية )

المقدمة من wikipedia EN

Scirpus georgianus, or Georgia bulrush, is a flowering plant in the family Cyperaceae that grows in much of the eastern half of North America.[2] Its habitat is wet marshy field areas prone to seasonal flooding.[3] It was described by Roland McMillan Harper.

It is sometimes confused with Scirpus hattorianus.[3]

References

  1. ^ Bulletin of the Torrey Botanical Club Vol. 27. page 433, plate 22, Scirpus Georgianus
  2. ^ "Plants Profile for Scirpus georgianus (Georgia bulrush)". plants.usda.gov.
  3. ^ a b "Scirpus georgianus (Georgia bulrush): Go Botany". gobotany.newenglandwild.org.
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Wikipedia authors and editors
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wikipedia EN

Scirpus georgianus: Brief Summary ( الإنجليزية )

المقدمة من wikipedia EN

Scirpus georgianus, or Georgia bulrush, is a flowering plant in the family Cyperaceae that grows in much of the eastern half of North America. Its habitat is wet marshy field areas prone to seasonal flooding. It was described by Roland McMillan Harper.

It is sometimes confused with Scirpus hattorianus.

ترخيص
cc-by-sa-3.0
حقوق النشر
Wikipedia authors and editors
النص الأصلي
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wikipedia EN

Scirpus georgianus ( الفيتنامية )

المقدمة من wikipedia VI

Scirpus georgianus là loài thực vật có hoa trong họ Cói. Loài này được R.M.Harper miêu tả khoa học đầu tiên năm 1900.[1]

Chú thích

  1. ^ The Plant List (2010). Scirpus georgianus. Truy cập ngày 11 tháng 6 năm 2013.

Liên kết ngoài


Hình tượng sơ khai Bài viết liên quan đến phân họ cói Cyperoideae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
ترخيص
cc-by-sa-3.0
حقوق النشر
Wikipedia tác giả và biên tập viên
النص الأصلي
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موقع الشريك
wikipedia VI

Scirpus georgianus: Brief Summary ( الفيتنامية )

المقدمة من wikipedia VI

Scirpus georgianus là loài thực vật có hoa trong họ Cói. Loài này được R.M.Harper miêu tả khoa học đầu tiên năm 1900.

ترخيص
cc-by-sa-3.0
حقوق النشر
Wikipedia tác giả và biên tập viên
النص الأصلي
زيارة المصدر
موقع الشريك
wikipedia VI