Difference between revisions of "Cyclachaena xanthiifolia"
Index Seminum (Frankfurt) 1836: 4. 1836.
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|common_names=Ive à feuilles de lampourde | |common_names=Ive à feuilles de lampourde | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
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| + | |code=E | ||
| + | |label=Endemic | ||
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|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Iva xanthiifolia | |name=Iva xanthiifolia | ||
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|publication title=Index Seminum (Frankfurt) | |publication title=Index Seminum (Frankfurt) | ||
|publication year=1836 | |publication year=1836 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_50.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Latest revision as of 20:12, 5 November 2020
Leaves: petioles 1–7(–12+) cm; blades 6–12(–20+) × 5–12(–18+) cm. Peduncles 1–6(–12+) mm. Involucres 2–3 mm. Phyllaries: outer 5 ± herbaceous, sericeous to strigillose, inner scarious to membranous, glabrous or glabrate. Paleae 2–2.5 mm. Pistillate florets: corollas 0.1–0.5 mm, or 0. Functionally staminate florets: corollas 2–2.5 mm. Cypselae 2–2.5(–3) mm. 2n = 36.
Phenology: Flowering Jul–Oct.
Habitat: Disturbed sites: abandoned fields, bottomlands, flood plains, stream banks
Elevation: 1–1300 m
Distribution
Alta., B.C., Man., N.B., N.S., Ont., P.E.I., Que., Sask., Ariz., Calif., Conn., Colo., D.C., Idaho, Ill., Ind., Iowa, Kans., Ky., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.Dak., Tex., Utah, Vt., Va., Wash., Wis., Wyo.
Discussion
Cyclachaena xanthiifolia is thought to be native to North American prairies and is evidently adventive east of the Mississippi River and in western states. It was recorded once from California as a weed in commercially grown carrots (specimen in CAS).
Selected References
None.