Gutenbergia cordifolia Benth. ex Oliv.

Annual or short-lived perennial herb 30-200 cm tall; stems erect, branching, appressed-pubescent.. Leaves alternate or often especially the lower subopposite or opposite, obovate-elliptic or (narrowly) ovate, 1.5-15 cm long, 0.5-6 cm wide, the lower cuneate or attenuate into a petioloid base, the upper subsessile, cuneate to rounded or cordate and semiamplexicaul at the base, all subentire, obtuse to shortly apiculate or sometimes acuminate, green and shortly pubescent above, grey-green or silvery with whitish pubescence beneath.. Capitula in terminal and upper axillary corymbiform cymes; stalks of individual capitula densely appressed-pubescent; involucre hemispherical, campanulate or shortly cylindrical, 2.5-7 mm in diameter at flowering time; phyllaries 3-5-seriate, pallid green and glabrous in lower part, darker green centrally and almost glabrous to pubescent with white or brownish hairs and often glandular in upper part, often purplish in upper part below the apex and on the margins, narrowly to broadly ovate, 4-8.5 mm long, obtuse to acute and shortly apiculate or pungent, with rather prominent pale hyaline finely pectinate or pectinate-fimbriate membranous margins.. Corolla purple, mauve or rarely whitish, 4.2-8 mm long, lobes 1.3-3.5 mm long, shortly stiffly hairy at the apex and sometimes also with some appressed T-shaped hairs, often glandular.. Achenes broadly obovoid-cylindrical, 1-1.5 mm long, obtusely and sometimes broadly (4-)5(-6)-ribbed, smooth or sometimes slightly rugulose and shortly ascending-hairy or almost glabrous and glandular between the ribs; pappus of few barbellate bristles 0.5-2.5 mm long, caducous.. Fig. 30/5 (achene), p.127.

It is a tropical plant.