Gamochaeta Weddell

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 127

21. Gamochaeta Weddell 1

Appressed-tomentose annuals to perennials, without non-flowering shoots. Basal leaves in a rosette. Capitula in groups subtended by 1 leaf, forming a terminal, spicate, more or less leafy inflorescence. Receptacle without scales. Involucral bracts imbricate, brownish; indurated middle portion of the inner bracts not sulcate. Hermaphrodite florets reddish-purple at apex. Achenes 0-4-0-9 mm, smooth, without papillae, mucilaginous when wet; pappus-hairs not ciliate at base, connate in a basal ring, falling as a unit.

Literature: D. G. Drury, New Zealand Jour. Bot. 9: 157-185 (1971).

Dead basal leaves usually absent at anthesis;caulineleaves± equally hairy on both surfaces, the upperfoldedandfalcate; inflorescence occupying Q-)i ofthelength ofthestem;capitula

3-3 - 5 mm 1. subfalcata Dead basal leaves persisting in a rosette at anthesis;cauline leaves subglabrous above, tomentose beneath, plane and straight; inflorescence occupying at most | of the lengthofthestem; capitula 4-5 mm 2. purpurea