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Anthemis
Family: Asteraceae
Anthemis image
Max Licher
  • FNA
  • Gleason & Cronquist
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Linda E. Watson in Flora of North America (vol. 19, 20 and 21)
Annuals (biennials) [perennials, subshrubs], mostly 5-90 cm (often aromatic). Stems 1-5+, erect to decumbent, usually branched, strigillose or strigoso-sericeous to villous (hairs medifixed), glabrescent [glabrous or sericeous to lanate]. Leaves mostly cauline; alternate; petiolate or sessile; blades ± obovate to spatulate, 1-3-pinnately lobed, ultimate margins dentate to lobed, faces glabrous or strigillose to villous [glabrous or sericeous to lanate]. Heads radiate [discoid], borne singly or in lax, corymbiform arrays (peduncles sometimes clavate and/or curved in fruit). Involucres obconic to hemispheric or broader, 5-13[-20] mm diam. Phyllaries persistent, mostly 21-35+ in 3-5 series, distinct, deltate to lanceolate, oblong, or elliptic, unequal, margins and apices (hyaline and colorless or brownish [black]) scarious. Receptacles hemispheric to narrowly conic, paleate (wholly or only distally); paleae ± flat, scarious to indurate (subulate or elliptic to obovate with mucronate to acuminate-spinose tips). Ray florets [0 or 2-]5-20[-30+], pistillate and fertile or styliferous and sterile; corollas usually white, rarely yellow or pink, laminae mostly oblong (tubes sometimes hairy). Disc florets (60-)100-300+, bisexual, fertile; corollas usually yellow, rarely pink, tubes ± cylindric (usually proximally dilated, ± spongy in fruit, sometimes hairy, not saccate), throats funnelform, lobes 5, ± triangular (abaxially minutely crested). Cypselae obovoid to obconic or turbinate (circular or 4-angled in cross section), ribs usually 9-10 (0) and smooth or tuberculate, faces glabrous (pericarps with myxogenic cells); pappi 0 or coroniform. x = 9. Anthemis secundiramea Bivona-Bernardi, a European species, was collected once in Virginia; it differs from A. arvensis in having peduncles to 8 cm and ribs on cypselae ± tuberculate.

Vascular plants of NE US and adjacent Canada
Heads radiate or rarely discoid, the rays elongate, white or yellow, pistillate or neutral; invol bracts subequal or more often imbricate in several series, dry, the margins ±scarious or hyaline; receptacle convex or conic or hemispheric, chaffy at least toward the middle; disk-fls numerous, perfect, the tube usually cylindric at base, occasionally flattened; style-branches flattened, truncate, penicillate; achenes terete or 4-5- angled, or occasionally ±compressed but not callous-margined; pappus a short crown, or more often none; herbs, usually aromatic, with alternate, incised-dentate to pinnately dissected lvs and medium-sized to rather large heads terminating the branches. 60, Old World. Besides the spp. treated below, A. mixta L. (annual; rays pistillate, white with yellow base) and A. nobilis L. (perennial; rays pistillate, white, receptacular bracts blunt) have been found as waifs in our range.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Anthemis aetnensis
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Anthemis alpina
Image of Anthemis alpina
Anthemis altissima
Image of Anthemis altissima
Anthemis arvensis
Image of Anthemis arvensis
Anthemis austriaca
Image of Anthemis austriaca
Anthemis candidissima
Image of Anthemis candidissima
Anthemis chia
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Anthemis cota
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Anthemis cotula
Image of Anthemis cotula
Anthemis cretica
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Anthemis cupaniana
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Anthemis discoidea
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Anthemis fuscata
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Anthemis hydruntina
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Anthemis kotschyana
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Anthemis leucanthemifolia
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Anthemis macedonica
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Anthemis maris-mortui
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Anthemis maritima
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Anthemis marschalliana
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Anthemis mixta
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Anthemis montana
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Anthemis parthenioides
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Anthemis parvifolia
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Anthemis pedunculata
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Anthemis pseudocotula
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Anthemis punctata
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Anthemis retusa
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Anthemis rigida
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Anthemis ruthenica
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Anthemis secundiramea
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Anthemis tigrensis
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Anthemis trotzkiana
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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