Difference between revisions of "Cyperus compressus"
Sp. Pl. 1: 46. 1753.
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|place=1: 46. 1753 | |place=1: 46. 1753 | ||
|year=1753 | |year=1753 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W2 | ||
| + | |label= | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=W1 | ||
| + | |label= | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms= | |basionyms= | ||
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|name=Cyperus compressus var. pectiniformis | |name=Cyperus compressus var. pectiniformis | ||
|authority=(Roemer & Schultes) C. B. Clarke | |authority=(Roemer & Schultes) C. B. Clarke | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus pectinatus | |name=Cyperus pectinatus | ||
|authority=Roemer & Schultes | |authority=Roemer & Schultes | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus pectiniformis | |name=Cyperus pectiniformis | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus compressus | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus compressus | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cyperus compressus | name=Cyperus compressus | ||
| − | |||
|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=W2;W1;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_281.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Latest revision as of 20:39, 5 November 2020
Herbs, annual, cespitose with fibrous roots. Culms trigonous, (2–)6–15(–35) cm × (0.3–)1–1.8 mm, glabrous. Leaves 1–5, flat to V-shaped, (1–)5–15(–22) cm × (0.5–)1.5–3 mm. Inflorescences: spikes ± digitate, ± globose, 7–40 × 10–20 mm; rays (0–)1–6, 2–12 cm; if absent, inflorescence a sessile cluster of (1–)3–10 spikelets; rachis 2–5 mm; bracts (1–)4–5(–6), ascending, V-shaped, 1–15(–20) cm × 0.5–3.5 mm; rachilla persistent, wingless. Spikelets (1–)3–12(–16), greenish white, linear to linear-lanceoloid, compressed-quadrangular, 6–34(–40) × 2–3(–3.6) mm; floral scales deciduous, (8–)16–36(–42), spreading, laterally whitish, greenish, or pale brownish, medially green, weakly 7–9-ribbed, laterally weakly 1–2-ribbed, most ribs medial, ovate, (2.4–)2.6–3 × (1.9–)2–2.4(–2.5) mm, apex acute to ± acute, cuspidate tip (0.3–)0.5–0.7(–0.8) mm. Flowers: anthers 0.6–0.7 mm; styles 0.9–1.3 mm; stigmas 0.5–0.8 mm. Achenes brown, stipitate to sessile, obovoid, (1–)1.2–1.4(–1.5) × 0.9–1(–1.1) mm, apex obtuse to emarginate, surfaces very finely puncticulate.
Phenology: Fruiting summer–early fall.
Habitat: Various disturbed soils
Elevation: 0–900 m
Distribution
Ala., Ark., Del., Fla., Ga., Ill., La., Md., Miss., Mo., N.Y., N.C., Ohio, Pa., S.C., Tex., Va., Mexico, Central America, South America, Asia, Africa.
Discussion
Selected References
None.