Difference between revisions of "Eleocharis atropurpurea"
in C. B. Presl, Reliq. Haenk. 1: 196. 1828.
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|common_names=Purple spikerush | |common_names=Purple spikerush | ||
− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Scirpus atropurpureus | |name=Scirpus atropurpureus | ||
|authority=Retzius | |authority=Retzius | ||
+ | |publication_title=Observ. Bot. | ||
+ | |publication_place=5: 14. 1789 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1828 | |publication year=1828 | ||
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V23/V23_152.xml |
|genus=Eleocharis | |genus=Eleocharis | ||
|subgenus=Eleocharis subg. Eleocharis | |subgenus=Eleocharis subg. Eleocharis |
Revision as of 20:07, 24 September 2019
Plants tufted, without creeping rhizomes. Culms 2–12(–19) cm × 0.2–0.4 mm. Leaves: distal leaf sheaths firm, distally tightly sheathing, apex acute. Spikelets ovoid to ellipsoid, 2–6(–8) × 1–2.5 mm, apex acute; proximal scale with or without flower, not amplexicaulous; floral scales to 100, 15–19 per mm of rachilla, often loosely appressed, dark red-brown to stramineous, ovate to elliptic, 0.6–1.3 × 0.3–0.7 mm, membranous, apex rounded to acute. Flowers: perianth bristles (0–)4–6, typically 4, colorless to whitish, vestigial to 1/2 as long as achene, smooth or spinuliferous; styles 2-fid. Achenes black, obovoid, biconvex, 0.3–0.5 × 0.3–0.4 mm, apex often constricted proximal to tubercle, smooth at 40X. Tubercles stramineous to whitish, umbonate to subconic, 0.1–0.2 × 0.1–0.2 mm, apex acute. 2n = 20.
Phenology: Fruiting summer–fall (Jun–Sep).
Habitat: Canal banks, hammocks, irrigation ditches, lake and pond margins, maritime shores, rice fields
Elevation: 0–1800 m
Distribution
![V23 152-distribution-map.jpg](/w/images/2/20/V23_152-distribution-map.jpg)
B.C., Ala., Calif., Fla., Ga., Iowa, Kans., La., Mich., Mo., Nebr., N.Mex., N.C., Okla., S.C., Tex., Wash., Mexico, West Indies, Central America, South America, Europe (naturalized), Asia, Africa, Pacific Islands.
Discussion
Eleocharis atropurpurea has been reported from Colorado, Montana, and Virginia; I have not seen voucher specimens.
Selected References
None.