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Published In: Species Plantarum 2: 893. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
General/Distribution: A genus of c. 150 species, distributed from Pakistan and Central Asia westwards to N Africa and Europe. Represented in Pakistan by 6 species.


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Hairy or glabrous, annual, biennial or perennial herbs, sometimes woody at base. Leaves alternate, uni- to tripinnatisect or partite, primary segments divided into linear or lanceolate-spathulate ultimate segments. Capitula usually solitary terminal, rarely in corymbs, pedunculate, mostly radiate, occasionally discoid, heterogamous. Involucre of 3-many-seriate, imbricate, membranous and entire or lacerate margined phyllaries. Receptacle conical to hemispherical, beset all over or in the upper part only with rigid, subulate or lanceolate to ± spathulate, mucronate or acuminate-spinescent paleae. Ray-florets uniseriate, female, rarely neuter, fertile or sterile, with terete or compressed corolla tube and 2-3-dentate, white or purplish, reflexed ligule. Disc-florets hermaphrodite, fertile, corolla tube compressed and 2-winged or inflated at the base, with 5-dentate limb; anther bases entire, obtuse; style branches flattened, truncate and penicillate at apices. Cypselas cylindric-oblong to obpyramidate, 4-5-angled or 8-10-ribbed or multistriate, smooth or tuberculate, bald or beset apically with a short dentate rim or membranous, entire or lacerate auricle on one side.

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1 Receptacle chaffy in the upper half, paleae linear-subulate. (2)
+ Receptacle chaffy all over, paleae oblong-spathulate or oblong-lanceolate to oblanceolate. (3)
2 (1) Plants usually more than 25 cm tall. Leaves 2-3-pinnatisect. Cypselas 1 – 1.5 mm long. 2 Anthemis cotula
+ Plants up to 15 (-20) cm tall. Leaves 1 (-2)-pinnatisect. Cypselas more than 2 mmm long. 1 Anthemis odontostephana
3 (1) Plants up to 20 cm tall. Disc-florets purplish. (4)
+ Plants usually more than 20 cm tall. Disc-florets yellow, rarely purple-tinged. (5)
4 (3) Capitula 15 – 20 mm across. Cypselas 2 – 2.5 mm long, c. 0. 5 mm wide. 3 Anthemis rhodocentra
+ Capitula 8 – 15 mm across. Cypselas c. 2.5 mm long, 0.8 – 1 mm wide. 4 Anthemis kandharica
5 (3) Receptacle hemispherical. Paleae oblong-spathulate, abruptly cuspidate with c. 3.5 – 4 mm long acumen. 5 Anthemis altissima
+ Receptacle conical, especially in fruit. Paleae lanceolate to oblanceolate, with ± stiff very short acumen. 6 Anthemis arvensis
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