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Chromolaena A.P. de Candolle.

Key to Chromolaena

A genus of about 165 species, perennial herbs and shrubs, of s. North America, Central America, and South America.

ID notes: Similar in general appearance to other Eupatorioid perennials and suffrutescent shrubs (such as Tamaulipa azurea, Koanophyllon villosum, and Ageratina havanensis) in their often well-petioled, triangular leaves, and pink, blue, to purple discoid heads. Chromolaena differs especially in its deciduous phyllaries, that are broader and and the inner petaloid.

Ref: Cronquist (1980); Nesom (2006ll) In Flora of North America Editorial Committee (2006c). Show full citations.

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Show species in Chromolaena

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Jay Horn | Chromolaena odorata source | Original Image ⭷
image of plant© Keith Bradley | Chromolaena frustrata | Original Image ⭷
image of plant© Keith Bradley | Chromolaena odorata | Original Image ⭷
image of plant© Keith Bradley | Chromolaena frustrata | Original Image ⭷
image of plant© Jay Horn | Chromolaena odorata source | Original Image ⭷

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