Directory       News       Site Map       Home
         
    Jepson eFlora
Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

ANTHEMIS DOG-FENNEL, CHAMOMILE

Linda E. Watson


Annual, perennial herb, often aromatic; herbage strigose to long-soft-hairy or ± glabrous. Stem: 1–5+, decumbent to erect, generally branched. Leaf: most cauline, alternate, petioled or sessile, ± obovate to spoon-shaped, 1–3-pinnately divided. Inflorescence: heads radiate [discoid], 1 or in rounded to flat-topped clusters; involucre obconic to hemispheric or wider, phyllaries persistent, generally 21–35+, ± graduated in 3–5 series, free, generally lanceolate, oblong, or elliptic, margin and tip scarious, receptacle hemispheric to narrowly conic, paleate throughout or distally; paleae awl-shaped or elliptic to obovate. Ray flower: (0)5–20+, pistillate or sterile (style present); corolla white [yellow or pink]. Disk flower: generally 100–300+; corolla generally yellow, tube << funnel-shaped throat, swollen, lobes ± triangular; anther tip ± ovate; style tips truncate. Fruit: obovoid to obconic or top-shaped, round or 4-angled, generally 10-ribbed, smooth or tubercled, glabrous; pappus 0 or crown-like.
± 175 species: Europe, western Asia, northern Africa. (Greek: flower) [Watson 2006 FNANM 19:537–538] Cota tinctoria (L.) Guss. [Anthemis tinctoria L. in TJM (1993)] occasional escape from cultivation.
Unabridged note: Cota tinctoria (L.) J. Gay ex Guss. (Anthemis tinctoria L. in TJM (1993)) occasional escape from cultivation.

Key to Anthemis

1. Ray flower pistillate; receptacle paleate throughout, paleae lanceolate to oblanceolate, weakly folded, ± keeled, tip spiny-acuminate; fruit ribs smooth or weakly tubercled; stem branched mostly proximally ..... A. arvensis

1' Ray flower sterile; receptacle paleate distally, paleae needle-like to awl-shaped; fruit ribs ± tubercled; stem branched distally or ± throughout ..... A. cotula

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.