Difference between revisions of "Oryza sativa"
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|distribution=Va.;Puerto Rico;Virgin Islands;Okla.;Miss.;Tex.;La.;Calif.;N.C.;Ala.;Tenn.;Ark.;Ill.;Ga.;S.C.;Mo. | |distribution=Va.;Puerto Rico;Virgin Islands;Okla.;Miss.;Tex.;La.;Calif.;N.C.;Ala.;Tenn.;Ark.;Ill.;Ga.;S.C.;Mo. | ||
| − | |discussion=<p>Oryza sativa is cultivated in California, Arkansas, Texas, Louisiana, Mississippi, and Florida and is sometimes found as an adventive in moist or wet places, particularly in the southeastern United States, but it is not established in the Flora region. It used to be extensively cultivated in the Carolinas and Georgia, but no rice plantations are currently known to be in operation in those states. Many cultivars have been developed; there is considerable morphological, as well as ecological, variability in the cultivated crop.</p> | + | |discussion=<p><i>Oryza sativa</i> is cultivated in California, Arkansas, Texas, Louisiana, Mississippi, and Florida and is sometimes found as an adventive in moist or wet places, particularly in the southeastern United States, but it is not established in the Flora region. It used to be extensively cultivated in the Carolinas and Georgia, but no rice plantations are currently known to be in operation in those states. Many cultivars have been developed; there is considerable morphological, as well as ecological, variability in the cultivated crop.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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name=Oryza sativa | name=Oryza sativa | ||
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|authority=L. | |authority=L. | ||
|rank=species | |rank=species | ||
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|family=Poaceae | |family=Poaceae | ||
|illustrator=Sandy Long | |illustrator=Sandy Long | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Va.;Puerto Rico;Virgin Islands;Okla.;Miss.;Tex.;La.;Calif.;N.C.;Ala.;Tenn.;Ark.;Ill.;Ga.;S.C.;Mo. | |distribution=Va.;Puerto Rico;Virgin Islands;Okla.;Miss.;Tex.;La.;Calif.;N.C.;Ala.;Tenn.;Ark.;Ill.;Ga.;S.C.;Mo. | ||
|reference=None | |reference=None | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V24/V24_39.xml |
|subfamily=Poaceae subfam. Ehrhartoideae | |subfamily=Poaceae subfam. Ehrhartoideae | ||
|tribe=Poaceae tribe Oryzeae | |tribe=Poaceae tribe Oryzeae | ||
Revision as of 20:20, 16 December 2019
Plants usually annual, sometimes perennial; cespitose, not rhizomatous. Culms 0.3-2 m tall, 4-20 mm thick, erect or ascending, branching at the base, usually rooting at both the lower and submerged upper nodes. Sheaths smooth, glabrous, lowest sheaths usually longer than the internodes, upper sheaths shorter than the internodes; auricles often present, 1-5 mm; ligules (4)10-36 mm, acute; blades 20-70 cm long, 5-20 mm wide, glabrous, sometimes scabrous. Panicles 10-50 cm long, 1-8 cm wide, often nodding; branches 2-13 cm, ascending or divergent; pedicels 1-7 mm. Spikelets 6-11 mm long, 2.5-4 mm wide, broadly elliptic, sometimes with obvious rows of white papillae, persistent, obliquely articulated with the pedicels. Sterile florets 1.5-3(10) mm long, 1/4 - 1/2 (9/10) as long as the spikelets, 0.5-1.5 mm wide. Functional florets: lemmas 6-11 mm long, 2-3 mm wide, glabrous or with stiff hairs to 1.5 mm, apices beaked, beaks 0.3-1(2) mm, rigid, usually unawned, sometimes awned, awns to 6(15) cm; paleas 1-1.7 mm wide, acute to acuminate or mucronate to 0.5 mm; anthers 1-2.5 mm, white or yellow; styles white, yellow, red, or blackish-purple. Caryopses 4.5-8 mm long, 2-3.5 mm wide, broadly elliptic or broadly oblong, brown, tan, or white; embryos 1.4-1.7 mm. Haplome A. 2n = 24.
Distribution
Va., Puerto Rico, Virgin Islands, Okla., Miss., Tex., La., Calif., N.C., Ala., Tenn., Ark., Ill., Ga., S.C., Mo.
Discussion
Oryza sativa is cultivated in California, Arkansas, Texas, Louisiana, Mississippi, and Florida and is sometimes found as an adventive in moist or wet places, particularly in the southeastern United States, but it is not established in the Flora region. It used to be extensively cultivated in the Carolinas and Georgia, but no rice plantations are currently known to be in operation in those states. Many cultivars have been developed; there is considerable morphological, as well as ecological, variability in the cultivated crop.
Selected References
None.