Paspalum orbiculatum

• Overview
• Interesting Facts
• Common Names
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Overview

Interesting Facts

Common Names

Description

Genus Paspalum

Perennials or annuals . Culms tufted , or with creeping rhizomes and stolons. Leaf blades linear or narrowly lanceolate, flat; ligule membranous. Inflorescence composed of single, digitate or scattered racemes ; rachis flat, often winged ; spikelets single or paired , pedicellate in 2-4 rows , densely crowded, lower lemma abaxial . Spikelets orbicular , ovate or elliptic plano-convex ; lower glume absent or rarely present as a small scale; upper glume as long as spikelet or nearly so, rarely absent, convex , membranous to subpapery, 3-7-veined; lower lemma resembling upper glume, flat, neuter without palea; upper lemma usually coriaceous to crustaceous , rarely softer, margins inrolled , apex obtuse to apiculate . x = 10.

About 330 species:tropical and warm-temperate regions, especially in the New World; 16 species (two endemic, eight introduced ) in China.

This genus includes a number of good forage grasses and also some widespread weeds .[1]

Physical Description

Habitat

Typically found at an altitude of 0 to 1,603 meters (0 to 5,259 feet).[2]

Biology

Reproduction

Duration: Perennial

Taxonomy

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

Members of the genus Paspalum

ZipcodeZoo has pages for 78 species, subspecies, varieties, forms, and cultivars in this genus:

P. acuminatum (Book Paspalum) · P. almum (Comb's Crowngrass) · P. arundinaceum (Thick Ditch Crowngrass) · P. bakeri (Baker's Crowngrass) · P. bifidum (Pitchfork Crowngrass) · P. blodgettii (Blodgett's Crowngrass) · P. boscianum (Bull Crowngrass) · P. caespitosum (Blue Crowngrass) · P. clavuliferum (Hillside Crowngrass) · P. compressum (Savannah Grass) · P. conjugatum (Herbe Creole) · P. conspersum (Scattered Paspalum) · P. convexum (Latin American Crowngrass) · P. coryphaeum (Emperor Crowngrass) · P. decumbens (Decumbent Crowngrass) · P. densum (Dense Crowngrass) · P. denticulatum (Longtom) · P. dilatatum (Dallas Grass) · P. dilatatum dilatatum (Palpalum Dilate) · P. dispar (Mosquito Crowngrass) · P. dissectum (Mudbank Crowngrass) · P. distichum (Joint Paspalum) · P. fasciculatum (Mexican Crowngrass) · P. fimbriatum (Colombia Grass) · P. floridanum (Florida Paspalum) · P. fluitans (Horse-Tail Paspalum) · P. hartwegianum (Hartweg's Paspalum) · P. hieronymi (Paspalum) · P. hydrophilum (Water Paspalum) · P. intermedium (Intermediate Paspalum) · P. laeve (Field Paspalum) · P. laeve var. laeve (Field Paspalum) · P. langei (Rusty-Seed Paspalum) · P. laxum (Coconut Paspalum) · P. lividum (Longtom) · P. longifolium (Long-Leaved Paspalum) · P. macrophyllum (Bigleaf Paspalum) · P. malacophyllum (Ribbed Paspalum) · P. maritimum (Coastalsand Paspalum) · P. millegrana (Paja Brava) · P. minus (Mat Paspalum) · P. modestum (Water Paspalum) · P. molle (Soft Paspalum) · P. monostachyum (Gulfdune Paspalum) · P. nicorae (Brunswickgrass) · P. notatum (Bahia Grass) · P. notatum var. latiflorum (Bahiagrass) · P. notatum var. notatum (Bahiagrass) · P. notatum var. saurae (Bahiagrass) · P. notatum 'Argentine' (Bahia Grass) · P. notatum 'Pensacola' (Bahia Grass) · P. notatum 'Tifton 9' (Bahia Grass) · P. orbiculatum (Circular Paspalum) · P. paniculatum (Arrocillo) · P. parviflorum (Smallseed Paspalum) · P. pauciciliatum (Prostrate Dallis Grass) · P. paucispicatum (Large Knotgrass) · P. pleostachyum (Tropical Paspalum) · P. plicatulum (Brown-Seed Paspalum) · P. praecox (Early Paspalum) · P. pubiflorum (Hairy-Seed Paspalum) · P. pubiflorum var. pubiflorum (Hairyseed Paspalum) · P. pulchellum (Grand Paspalum) · P. quadrifarium (Tussock Paspalum) · P. racemosum (Peruvian Paspalum) · P. rupestre (Rock Paspalum) · P. scrobiculatum (India Paspalum) · P. scrobiculatum var. orbiculare (Ditch Millet) · P. secans (Slender Ditch Paspalum) · P. setaceum (Fringeleaf Paspalum) · P. thunbergii (Japanese Paspalum) · P. unispicatum (One-Spike Paspalum) · P. urvillei (Vasey Grass) · P. vaginatum (Seashore Paspalum) · P. vaginatum 'Te-13' (Seashore Paspalum) · P. virgatum (Talquezal) · P. virletii (Virlet Paspalum) · P. wrightii (Wrights Paspalum)

More Info

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Further Reading

• Biologia centrali-americana; or, Contributions to the knowledge of the fauna and flora of Mexico and Central America. London, Pub. for the editors by R. H. Porter and Dulau & co., 1879-88. url .
• Britton, N. L. (ed.). North American flora. 17 1912 [New York]New York Botanical Garden. url p. 194, p. 289, p. 926.
• Contributions from the New York Botanical Garden. New York: The Garden, 1899- url p. 375.
• Contributions from the United States National Herbarium 28 1943 Washington, D.C.: Smithsonian Institution Press, 1890- url p. 157, p. 233, p. 317, p. 318, p. 402, p. 409, p. 410, p. 420, p. 424, p. 434, p. 442, p. 443, p. 444, p. 449, p. 462, p. 465, p. 471, p. 475, p. 478, p. 482, p. 493, p. 494, p. 505, p. 512, p. 526, p. 526, p. 529, p. 532, p. 642, p. 709, p. 710, p. 711, p. 712, p. 719, p. 723, p. 724, p. 740, p. 741, p. 747, p. 753, p. 757, p. 759, p. 762.
• Contributions from the University of Michigan Herbarium. 8 1942 Ann Arbor: University Herbarium, University of Michigan, 1939- url p. 13.
• Dedication papers: scientific papers presented at the dedication of the laboratory building and plant houses, April 19-21, 1917. Brooklyn, N.Y.: Brooklyn Botanic Garden, 1918. url p. 27.
• Family #15, Gramineae / Richard W. Pohl. 4 1980 [Chicago]: Field Museum of Natural History, 1980. url fig. 161 , p. 401, p. 424, p. 433, p. 604.
• Flora of Guatemala: part II: grasses of Guatemala / Jason R. Swallen; Bamboos / F.A. McClure. 24 1955 Chicago, Ill.: Chicago Natural History Museum, 1955. url p. 287.
• Flora of the Lancetilla Valley, Honduras, by Paul C. Standley. 10 1931 Chicago, Field Museum of Natural History, 1931. url p. 99.
• Grasses of the West Indies. By A. S. Hitchcock and Agnes Chase. Washington, Govt. Print. Off., 1917. url p. 317, p. 402, p. 409, p. 410, p. 420, p. 424, p. 434, p. 442, p. 462, p. 465.
• Grasses of the West Indies. Washington, Govt. Print. Off., 1917. url p. 317, p. 318, p. 402, p. 409, p. 410, p. 420, p. 424, p. 434, p. 442, p. 444, p. 462, p. 465.
• Memoirs / Brooklyn Botanic Garden. Brooklyn, N.Y.: The Garden, 1918-1936. url p. 27.
• Phytologia memoirs. Plainfield, N.J.: H.N. Moldenke and A.L. Moldenke, 1980- url p. 59.
• Phytologia. Bronx Park, New York, H.A. Gleason and H.N. Moldenke, url p. 365.
• The flora of the American Virgin Islands / N.L. Britton. New York: New York Botanical Garden, 1918. url p. 27.
• The forests and flora of British Honduras / by Paul C. Standley and Samuel J. Record; in cooperation with the Conservator of Forests and the Agricultural Officer of the Colony. 12 1936 Chicago: [Field Museum of Natural History], 1936. url p. 72.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.

Data Sources

Accessed through GBIF Data Portal November 22, 2007:

• Herbarium of the University of Aarhus, The AAU Herbarium Database
• Herbier de la Guyane, Herbier de la Guyane
• Instituto Nacional de Biodiversidad
• , Biodiversidad de Costa Rica
• Missouri Botanical Garden, Missouri Botanical Garden
• UNIBIO, IBUNAM, MEXU/Plantas Vasculares

Identifiers

• Biodiversity Heritage Library NamebankID: 2661187
• Catalogue of Life Accepted Name Code: ITS-41051
• Global Biodiversity Information Facility Taxonkey: 13753726
• Globally Unique Identifier: urn:lsid:ipni.org:names:414489-1
• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 41051
• MoBot NameID: 25512328
• Natural Heritage Network Species Identifier: PMPOA4P110
• U.S.D.A. Plant Symbol: PAOR4
• Zipcode Zoo Species Identifier: 53852

Footnotes

1. Shou-liang Chen & Sylvia M. Phillips "Paspalum". in Flora of China Vol. 22 Page 1, 500, 526. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. Mean = 47.100 meters (154.528 feet), Standard Deviation = 1,072.430 based on 135 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]

©2004-2012 David Stang. All rights reserved.