Swaziland's Alien Plants Database

Tithonia rotundifolia (Mill.) S.F.Blake

ASTERACEAE

red sunflower

Invasive, Problem species

Origin: Central America

Growth Form: Shrub

Plant Description: Plant: Bushy annual, slightly woody at the base, 1.5–2.0(–3.0) m tall. Leaves: Dark green, rough hairy, up to 150 mm long x 100 mm wide, triangular-ovate, sometimes deeply three-lobed, petioles winged. Flowers: Bright orange-red, large and showy, to 90 mm across, solitary on long stalks much swollen and velvety below the heads, terminating the main and side branches; buds pointed, bracts below petals in two series, narrow, pointed, February–July. Fruit: Brown achenes, in a rounded, spiky mass.

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Photo - flowers