Difference between revisions of "Cyperus thyrsiflorus"
Linnaea 6: 24. 1831.
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|name=Cyperus anceps | |name=Cyperus anceps | ||
|authority=Liebmann | |authority=Liebmann | ||
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|name=Cyperus dissitiflorus | |name=Cyperus dissitiflorus | ||
|authority=Nees ex Torrey | |authority=Nees ex Torrey | ||
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|name=Cyperus pallens | |name=Cyperus pallens | ||
|authority=(Liebmann) Standley & Steyermark | |authority=(Liebmann) Standley & Steyermark | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Cyperus regiomontanus var. pallens | |name=Cyperus regiomontanus var. pallens | ||
|authority=(Liebmann) Kükenthal | |authority=(Liebmann) Kükenthal | ||
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|name=Cyperus tribrachiatus | |name=Cyperus tribrachiatus | ||
|authority=(Liebmann) Kükenthal | |authority=(Liebmann) Kükenthal | ||
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|name=Mariscus dissitiflorus | |name=Mariscus dissitiflorus | ||
|authority=(Torrey) C. B. Clarke | |authority=(Torrey) C. B. Clarke | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Mariscus pallens | |name=Mariscus pallens | ||
|authority=Liebmann | |authority=Liebmann | ||
− | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Mariscus tribrachiatus | |name=Mariscus tribrachiatus | ||
|authority=Liebmann | |authority=Liebmann | ||
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|publication year=1831 | |publication year=1831 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V23/V23_317.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus |
Revision as of 17:07, 18 September 2019
Herbs, perennial, rhizomatous. Culms trigonous, (15–) 20–40(–65) cm × 0.5–1 mm, glabrous. Leaves V-shaped, (10–)20–40 cm × 0.8–2.8(–3) mm, glabrous. Inflorescences: spike 1, densely oblong-cylindric, (15–)25–35(–40) × 12–18(–22) mm, (spikelets loosely spaced, 7–9 per 5 mm of rachis); rays (5–)6–8(–11), 0.5–4(–7.5) cm; bracts (4–)5–7(–8), ascending at 30º, (4–)10–30(–35) cm × (1–)2–4(–7) mm; rachilla deciduous, wings persistent, 0.4–0.5 mm wide. Spikelets (20–)40–80(–100), linear, ± cylindric, scarcely compressed, (4.5–)6–9(–11) × (0.5–) 0.6–0.7(–1) mm; floral scales persistent, (1–)2–3(–4), appressed, medially green, laterally light brown to tawny or bronze, medially (1–)3-ribbed, laterally 3-ribbed, oblong, (2.6–)2.8–3.2(–3.4) × (1–)1.2(–1.4) mm, apex acute, mucronulate, mucro to 0.1(–0.2) mm. Flowers: anthers 0.6–0.8 mm; styles (0.4–)0.6–1(–1.2) mm; stigmas persistent on achenes, prominently exserted from floral scales, (1.5–)2–3(–4) mm. Achenes brown to reddish brown, stipitate, narrowly oblong, 1.8–2.1 × (0.4–)0.5(–0.7) mm, stipe 0.1–0.2 × 0.1–0.2 mm, apex apiculate, acute, surfaces puncticulate.
Phenology: Fruiting summer.
Habitat: Dry, open woods
Elevation: 0–200 m
Distribution
Ala., Fla., Ga., La., Tex., Mexico, West Indies, South America.
Discussion
Selected References
None.