Anthemis cotula

Linnaeus
Sp. Pl. 2: 894. 1753.
Common names: Mayweed stinking chamomile camomille maroute
Introduced
Synonyms: Anthemis foetida Lamarck Chamaemelum cotula (Linnaeus) Allioni Maruta cotula (Linnaeus) de Candolle
Treatment appears in FNA Volume 19. Treatment on page 538. Mentioned on page 542.

Annuals, (5–)15–35(–90) cm, usually ill-scented. Stems green (sometimes red-tinged), usually erect, branched mostly distally or ± throughout, glabrous, glabrate, puberulent, or sparsely strigillose to strigoso-sericeous (glabrescent, hairs mostly medifixed) and gland-dotted. Leaf blades 25–55 × 15–30 mm, 1–2-pinnately lobed. Peduncles mostly (2–)4–6(–15) cm. Involucres 5–9 mm diam., ± villosulous to arachnose. Receptacles paleate mostly distally; paleae subulate to acerose 2–3+ mm (often gland-dotted). Ray florets 10–15, styliferous and sterile; corollas white, laminae 5–15+ mm. Disc corollas 2–2.5 mm (sparsely gland-dotted). Cypselae 1.3–2 mm, ribs ± tuberculate (furrows often gland-dotted); pappi 0. 2n = 18.


Phenology: Flowering (Apr–)May–Aug(–Oct).
Habitat: Disturbed sites, clearings, fields, roadsides
Elevation: 10–600(–1500+) m

Distribution

V19-937-distribution-map.gif

Introduced; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que., Sask., Yukon, Ala., Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Minn., Miss., Mo., Mont., 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, Vt., Va., Wash., W.Va., Wis., Wyo., Eurasia.

Discussion

Anthemis cotula is a weed throughout North America.

Selected References

None.

Lower Taxa

None.

... more about "Anthemis cotula"
Linda E. Watson +
Linnaeus +
Mayweed +, stinking chamomile +  and camomille maroute +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Ala. +, Alaska +, Ariz. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Minn. +, Miss. +, Mo. +, Mont. +, 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 +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +  and Eurasia. +
10–600(–1500+) m +
Disturbed sites, clearings, fields, roadsides +
Flowering (Apr–)May–Aug(–Oct). +
Introduced +
Anthemis foetida +, Chamaemelum cotula +  and Maruta cotula +
Anthemis cotula +
Anthemis +
species +