dcsimg

Description ( Inglês )

fornecido por Flora of Zimbabwe
Monoecious annual herbs. Leaves alternate, crenate, deeply toothed or lobed. Capitula unisexual, discoid. Male capitula terminal, spherical, many-flowered; phyllaries few, free; receptacular scales present; corolla 5-dentate. Female capitula axillary, 2-flowered; involucre enclosing and surrounding the 2 flowers, covered with hooked bristles; corolla 0; pappus 0. Achenes obovoid or oblong, enclosed in the persistent hard involucre which bears many hooked spines.Unusual-looking plants, atypical for Asteraceae.
licença
cc-by-nc
direitos autorais
Mark Hyde, Bart Wursten and Petra Ballings
citação bibliográfica
Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Xanthium Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1513
autor
Mark Hyde
autor
Bart Wursten
autor
Petra Ballings
original
visite a fonte
site do parceiro
Flora of Zimbabwe