Botanical Survey of India | Flora of India

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Herbs, annual or perennial. Leaves alternate, 2-3-pinnatisect. Heads solitary, terminal, sometimes corymbose, rayed (rarely disciform), hemispheric. Involucral bracts few-seriate, appressed, margins usually scarious brown, outer shorter. Receptacle naked. Ray florets female, fertile or sterile; ligule white. Disc florets hermaphrodite, fertile, tubular, terete or 2-edged; limb 4-5-fid. Anther bases obtuse, entire. Style arms of hermaphrodite florets with truncate and penicillate tips. Achenes oblong, often incurved, faces glandular or rugulose, truncate, dorsally convex and ribbed or not, ventrally 3-5-ribbed. Pappus very short, coroniform, dimidiate or absent.

Europe, N. and S. Africa, Asia and America; ca 60 species, 2 in India.

Literature. JEFFEREY, C. (1979). Notes on the lectotypification of the names of Cacalia L., Matricaria L., and Gnaphalium L. Taxon 28 (4): 349 - 351.



KEY TO THE SPECIES


1a. Heads 1.2 - 2 cm in diam.; ligule 0.8 - 1.5 cm long 2. Matricaria recutita
b. Heads ca 8 mm in diam.; ligule hardly 2 - 3 mm long 1. Matricaria disciformis


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