Montanoa Cerv.

Small shrubs to large trees or vines; stems glabrous to minutely pubescent on herbaceous parts. Leaves opposite, petiolate; lamina entire to deeply 3–5-lobed or coarsely pinnatifid, with 3 main veins from base, with wings and auricles present or absent. Capitula solitary or more usually in compound corymbs or panicles; involucral bracts 1–3-seriate, equal to subequal, ovate to lanceolate, with 3 veins; receptacle slightly to strongly convex; paleae persistent, accrescent, often spine-tipped, enclosing and at maturity greatly exceeding achenes. Ray florets in 1 series or rarely absent, male, ligulate, white (in Australian spp.). Disc florets (few or) numerous, bisexual, ±tubular, 5-toothed, green to yellow. Anthers auriculate at base; apical appendages ovate, acute, scarious. Styles branches usually linear, densely papillose-pilose. Achenes obovoid or 4-angled, usually compressed, glabrous and smooth, (red-) brown to black, with a ring-shaped collar at apex (true pappus absent).