Difference between revisions of "Cyperus lancastriensis"
in A. Gray, Manual ed. 5 issue 6, 555. 1867.
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|name=Cyperus refractus var. lancastriensis | |name=Cyperus refractus var. lancastriensis | ||
|authority=(Porter) Kükenthal | |authority=(Porter) Kükenthal | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Mariscus lancastriensis | |name=Mariscus lancastriensis | ||
|authority=(Porter) C. B. Clarke | |authority=(Porter) C. B. Clarke | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus lancastriensis | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus lancastriensis | ||
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name=Cyperus lancastriensis | name=Cyperus lancastriensis | ||
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|authority=Porter in A. Gray | |authority=Porter in A. Gray | ||
|rank=species | |rank=species | ||
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|publication year=1867 | |publication year=1867 | ||
|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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_311.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Revision as of 20:06, 16 December 2019
Herbs, perennial, cespitose, with inconspicuous, short rhizomes scarcely visible between culm bases. Culms basally cormlike, trigonous, (10–)20–80 cm × 1–3 mm, glabrous. Leaves inversely W-shaped, 20–70 cm × 5–11 mm, adaxial surface, margins minutely scabridulous. Inflorescences: spikes densely ellipsoid to obovoid, 2.5–4.3 × 1.5–3 cm; rays 5–10, 4–20 cm, glabrous; rachis 7–14 mm; bracts 3–8, horizontal to ascending at 45°, flat, 5–35 cm × 2.5–6 mm; rachilla persistent, wings 0.5 mm wide. Spikelets 50–90, linear-lanceoloid to linear-subulate, ± terete-quadrangular, (11–)12–13(–15) × 1.1–1.6 mm; distal spikelet spreading or ascending; floral scales persistent, 3–6(–8), appressed, whitish green or often yellow-tinted, sometimes reddish striate, laterally 4-ribbed, ovate-lanceolate, (3.9–)4.2–4.6(–4.8) × 1.6–2 mm. Flowers: anthers 0.7–1 mm; styles 1–1.5 mm; stigmas 2–3 mm. Achenes yellowish brown to brown, ± stipitate, conspicuously falcate, 3–4 times long as wide, oblong, 2.2–2.6 × 0.6–0.7 mm, apex obtuse, surfaces puncticulate.
Phenology: Fruiting summer (Jul–Aug).
Habitat: Disturbed, sunny or partly shaded places in mesic or dry-mesic soils, often on riverbanks and flood plains
Elevation: 0–800 m
Distribution
Ala., Ark., Del., D.C., Fla., Ga., Ky., Md., Mo., N.J., N.C., Ohio, Pa., S.C., Tenn., Va., W.Va.
Discussion
Selected References
None.