Montanoa
La Llave & Lexarza
Shrubs or trees. Leaves simple, opposite, entire or lobed, sometimes serrate-crenate,
3-nerved; petioles slender, sometimes winged, glandular pubescent. Heads mostly in open
panicles. Bracts and bracteoles foliaceous or scale-like. Heads radiate, sometimes showy.
Involucral bracts in 2 series; outer 5 - 8, narrow, herbaceous; inner smaller, apiculate to
spinulose. Paleae enclosing the florets, persistent in fruits, becoming chartaceous to
coriaceous, sometimes spine tipped. Ray florets with an elongate, spathulate ligule,
sometimes glandular; tube short. Ovary sterile. Disc florets numerous; corolla tubular,
5-lobed; tube short. Anthers with deltoid appendages. Style branches slender, clavate,
truncate. Ovary of central florets abortive. Achenes obovoid, laterally compressed.
Pappus absent.
Distributed from Mexico to Colombia; ca 50 species, 1 in India, naturalized.
Distributed from Mexico to Colombia; ca 50 species, 1 in India, naturalized.