Difference between revisions of "Cyperus erythrorhizos"
Descr. Gram., 20. 1817.
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|common_names=Red-rooted flatsedge | |common_names=Red-rooted flatsedge | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=W2 | ||
| + | |label= | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=W1 | ||
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| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Cyperus cupreus | |name=Cyperus cupreus | ||
|authority=J. Presl & C. Presl | |authority=J. Presl & C. Presl | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus erythrorhizos var. cupreus | |name=Cyperus erythrorhizos var. cupreus | ||
|authority=(J. Presl & C. Presl) Kükenthal | |authority=(J. Presl & C. Presl) Kükenthal | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus occidentalis | |name=Cyperus occidentalis | ||
|authority=Gandoger | |authority=Gandoger | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=Cyperus washingtonensis | |name=Cyperus washingtonensis | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus erythrorhizos | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Cyperus;Cyperus erythrorhizos | ||
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name=Cyperus erythrorhizos | name=Cyperus erythrorhizos | ||
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|authority=Muhlenberg | |authority=Muhlenberg | ||
|rank=species | |rank=species | ||
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|publication title=Descr. Gram., | |publication title=Descr. Gram., | ||
|publication year=1817 | |publication year=1817 | ||
| − | |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_285.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Cyperus | |subgenus=Cyperus subg. Cyperus | ||
Latest revision as of 21:39, 5 November 2020
Herbs, annual, cespitose. Culms trigonous to roundly trigonous, (0.5–)5–25(–105) cm × 1–2.5(–7.5) mm, glabrous. Leaves flat to inversely W-shaped, 5–25(–90) cm × 2–5(–11) mm. Inflorescences: spikes 1–3(–6), rather densely cylindric-ovoid, (4–)10–30(–45) × (6–)10–16(–23) mm; rays 2–6(–12), 1–8(–28) cm; bracts (3–)5–7(–11), horizontal to ascending at 30°, inversely W-shaped, (3–)10–20(–70) cm × 1–3(–12) mm; rachilla persistent, at maturity becoming laterally free, remaining firmly attached proximally, wings 0.3(–0.4) mm wide. Spikelets (20–)40–80, linear, quadrangular, 3–8(–11) × 1–1.5 mm; floral scales deciduous, 6–16(–30), appressed, laterally light brown with reddish speckles, medially greenish, laterally ribless, medially 3-ribbed, oblong-ovate to obovate, quadrangular to subterete, 1.3–1.5 × 0.8–1.2 mm, apex obtuse, mucronulate. Flowers: anthers 0.2–0.3 mm, connectives 0.1 mm; styles 0.7–0.8 mm; stigmas 0.4 mm. Achenes light grayish to brown, sessile, ovoid, (0.4–)0.7–1 × 0.4–0.6 mm, apex rounded, apiculate, surfaces glabrous.
Phenology: Fruiting summer.
Habitat: Emergent shorelines
Elevation: 0–1500 m
Distribution
Man., Ont., Ala., Ariz., Ark., Calif., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Va., Wash., W.Va., Wis., Mexico (Baja California).
Discussion
Selected References
None.