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Sandyfield Beaksedge

Rhynchospora megalocarpa A. Gray

Comments

provided by eFloras
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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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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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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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Distribution

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Ala., Fla., Ga., Miss., N.C., S.C.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Flowering/Fruiting

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Fruiting summer–fall.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Habitat

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White or yellow sandhills; 0–300m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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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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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 23: 205, 230, 231 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Rhynchospora megalocarpa

provided by wikipedia EN

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

  1. ^ "Rhynchospora megalocarpa - Species Details". Atlas of Florida Plants. Retrieved 2021-03-07.
  2. ^ "Plants Profile for Rhynchospora megalocarpa (sandyfield beaksedge)". plants.usda.gov. Retrieved 2021-03-07.
  3. ^ a b "Rhynchospora megalocarpa - FNA". floranorthamerica.org. Retrieved 2021-03-07.
  4. ^ "The Institute for Regional Conservation". regionalconservation.org. Retrieved 2021-03-07.
  5. ^ "Untitled Document". floridagrasses.org. Retrieved 2021-03-07.
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Rhynchospora megalocarpa: Brief Summary

provided by wikipedia EN

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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