Comments
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eFloras tarafından sağlandı
The perianth in Rhynchospora megalocarpa is unusual. The receptacular joint is stubby, bearing staggered cycles of bristles that vary extremely in length and number—on a par with R. alba, R. baldwinii, and R. macra in numbers of bristles. The greatest extreme is twelve, the fewest as low as two; usually if the number is low, the remaining sites for bristles will be dark-colored nubbins.
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Description
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eFloras tarafından sağlandı
Plants perennial, cespitose, to 130 cm, coarse; rhizomes scaly, stoloniferous, stout. Culms erect to arching, leafy, trigonous, slender, firm. Leaves overtopped by culms; blades linear, proximally flat, 3–7 mm wide, apex trigonous, subulate, tapering. Inflorescences: spikelet clusters 2–6, sparse, widely spaced, turbinate; peduncles and branches ascending; leafy bracts exceeding proximal clusters. Spikelets light red brown, ovoid to ellipsoid, (4–)5–8(–9) mm, apex acute or acuminate; fertile scales ovate, (5.5–)6–6.5(–7) mm, midrib included or short excurrent. Fruits 1–2 per spikelet, (3.5–)4–5 mm; body dark brown to mahogany or nearly black, broadly obovoid, tumid, nearly smooth, buttressed to tubercle; tubercle low conic, rimmed, 0.7(–1) mm, apex apiculate. Flowers: perianth bristles 6(–8), mostly reaching from fruit midbody to tubercle base, antrorsely barbellate.
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Distribution
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Ala., Fla., Ga., Miss., N.C., S.C.
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Flowering/Fruiting
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Fruiting summer–fall.
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Habitat
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White or yellow sandhills; 0–300m.
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Synonym
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Phaeocephalum dodecandrum (Baldwin ex A. Gray) House; Rhynchospora dodecrandra Baldwin ex A. Gray; R. pycnocarpa A. Gray
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Rhynchospora megalocarpa
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wikipedia EN tarafından sağlandı
Rhynchospora megalocarpa, commonly called sandyfield beaksedge, is a species of flowering plant in the sedge family (Cyperaceae). It is native to North America, where it is found in the southeastern United States.[1]
Distribution
Rhynchospora megalocarpa is found in the southeastern part of the United States in Florida, Georgia, Alabama, Mississippi, North Carolina, and South Carolina. It is prominently located in Florida. It enjoys a white or yellow sand-hill environment to grow in. It has also been found in scrub, scrubby flatwoods, and xeric hammock environments.[2][3][4]
Description
Rhynchospora megalocarpa is a perennial plant. It has been known to grow 130 cm in diameter. It has a scaly rhizome that form stolons. The culm is typically erect to arching. Like most sedges, R. megalocarpa forms leaves spirally arranged in three ranks. The leaves are linear, around 3–7 mm wide. The inflorescence forms 2-6 spikelet clusters, that are light red-brown color. The fruits are achenes; each spikelet contains 1-2 fruits. The achene is typically 4–5 mm wide. It has a dark brown to black coloration. It fruits summer through fall.[3][5]
References
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Rhynchospora megalocarpa: Brief Summary
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wikipedia EN tarafından sağlandı
Rhynchospora megalocarpa, commonly called sandyfield beaksedge, is a species of flowering plant in the sedge family (Cyperaceae). It is native to North America, where it is found in the southeastern United States.
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Rhynchospora megalocarpa
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wikipedia VI tarafından sağlandı
Rhynchospora megalocarpa là loài thực vật có hoa trong họ Cói. Loài này được A.Gray miêu tả khoa học đầu tiên năm 1835.[1]
Chú thích
Liên kết ngoài
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Rhynchospora megalocarpa: Brief Summary
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Vietnamca
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wikipedia VI tarafından sağlandı
Rhynchospora megalocarpa là loài thực vật có hoa trong họ Cói. Loài này được A.Gray miêu tả khoa học đầu tiên năm 1835.
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- Wikipedia tác giả và biên tập viên