Difference between revisions of "Cyperus lanceolatus"
in J. Lamarck et al., Encycl. 7: 245. 1806.
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|name=Cyperus densus | |name=Cyperus densus | ||
|authority=Link | |authority=Link | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus humboldtianus | |name=Cyperus humboldtianus | ||
|authority=Schultes | |authority=Schultes | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus lanceolatus var. compositus | |name=Cyperus lanceolatus var. compositus | ||
|authority=J. Presl & C. Presl | |authority=J. Presl & C. Presl | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Pycreus densus | |name=Pycreus densus | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycreus;Cyperus lanceolatus | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycreus;Cyperus lanceolatus | ||
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name=Cyperus lanceolatus | name=Cyperus lanceolatus | ||
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|authority=Poiret in J. Lamarck et al. | |authority=Poiret in J. Lamarck et al. | ||
|rank=species | |rank=species | ||
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|publication year=1806 | |publication year=1806 | ||
|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_258.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Pycreus | |subgenus=Cyperus subg. Pycreus | ||
Revision as of 20:06, 16 December 2019
Herbs, perennial, cespitose, rhizomatous. Culms trigonous, compressed, 15–75 cm × 0.5–3 mm, glabrous. Leaves 1–3, 5–30 cm × 1–2 mm. Inflorescences: spikes 1(–2), ovoid, 5–23 × 9–21 mm; rays 2–3(–4), 0–15 mm; if rays absent, head single, compact, sessile, (12–)15–20 mm diam.; bracts 2–3, horizontal to vertical, 2–14 cm × 0.5–3.5 mm. Spikelets 1–6, oblong-lanceoloid, 5–26 × 2–3 mm; floral scales 12–54, closely imbricate, laterally yellowish brown, medially pale brown, occasionally greenish, laterally 1-ribbed, medially 3-ribbed, distinctly 2-keeled basally, ovate, 1.8–2.6 × 1.4–1.7 mm, apex obtuse. Flowers: stamens 2; anthers 0.4–0.5 mm, connectives not prolonged; styles 0.3–1 mm; stigmas 0.6–0.8(–1) mm. Achenes brown, network of ridges forming isodiametric or square cells, stipitate, obovoid to ellipsoid, 1.1–1.3 × (0.5–)0.6 mm, apex acute to broadly rounded, surfaces minutely punctate or finely papillose.
Phenology: Fruiting summer.
Habitat: Marshes
Elevation: 0–100 m
Distribution
Ala., Fla., Ga., La., Tex., Mexico, Central America, South America, Africa.
Discussion
Selected References
None.