Difference between revisions of "Cyperus haspan"
Sp. Pl. 1: 45. 1753.
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|place=1: 45. 1753 | |place=1: 45. 1753 | ||
|year=1753 | |year=1753 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
}} | }} | ||
|basionyms= | |basionyms= | ||
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|name=Cyperus autumnalis | |name=Cyperus autumnalis | ||
|authority=Vahl | |authority=Vahl | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus haspan subsp. juncoides | |name=Cyperus haspan subsp. juncoides | ||
|authority=(Lamarck) Kükenthal | |authority=(Lamarck) Kükenthal | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus haspan var. americanus | |name=Cyperus haspan var. americanus | ||
|authority=Boeckeler | |authority=Boeckeler | ||
| + | |rank=variety | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Cyperus juncoides | |name=Cyperus juncoides | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycnostachys;Cyperus haspan | |hierarchy=Cyperaceae;Cyperus;Cyperus subg. Pycnostachys;Cyperus haspan | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Cyperus haspan | name=Cyperus haspan | ||
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|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=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_231.xml |
|genus=Cyperus | |genus=Cyperus | ||
|subgenus=Cyperus subg. Pycnostachys | |subgenus=Cyperus subg. Pycnostachys | ||
Latest revision as of 21:39, 5 November 2020
Herbs, perennial, cespitose, shortly rhizomatous. Culms trigonous, (2–)25–60(–100) cm × 1–4 mm, soft (flattened in drying), glabrous. Leaves usually reduced to sheaths, occasionally with blades, flat to V-shaped, (3–)10–30 cm × (1–)2.5–5 mm. Inflorescences: heads loosely digitate; rays (5–)10–12(–15), 1–15(–20) cm; 2d order rays usually present, (1–)6–12(–25) mm; 3d order rays sometimes present, 1–6 mm; bracts 2(–3), horizontal to ascending at 30–60°, longer (3–)6–18 cm × 2–4 mm, shorter (0.5–)2.5–6.5 cm × 1–2(–3) mm. Spikelets 1–15, linear-lanceoloid, ± compressed-quadrangular, 3–18 × 1–1.6 mm; floral scales 10–20(–40), laterally reddish to greenish brown, dull, often clear-edged, medially greenish, laterally 1-ribbed, medially 1-ribbed, oblong to obovate, 1–1.5(–1.9) × 0.8–1 mm, apex mucronate, glabrous except for cluster of crystalline prickles at apex. Flowers: stamens 3; anthers 0.3–0.5 mm; styles 0.4–0.9 mm; stigmas 0.5–0.8(–1.3) mm. Achenes white or reddish brown, stipitate, globose to obovoid or ellipsoid, 0.5–0.6(–0.7) × 0.3–0.4(–0.5) mm, base nearly cuneate, stipe 0.1 × 0.1–0.2 mm, apex obtuse to acute, apiculate or entire, surfaces granular to papillose.
Phenology: Fruiting summer.
Habitat: Swales between dunes, marshes, pond shores
Elevation: 0–200 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Va., Mexico, Central America, South America, Asia, Africa, Australia.
Discussion
Selected References
None.