EcoFlora - Tithonia rotundifolia

Tithonia rotundifolia S.F. Blake
Family: Asteraceae Clavel-de-Muerto, more...Mexican sunflower (es: acaute de flor) [Tagetes rotundifolia Mill., more] Mauricio Mercadante	FNA Resources John C. La Duke in Flora of North America (vol. 21) Annuals, mostly 100-200(-400) cm. Leaves: petioles 3-8 cm; blades ± deltate to pentagonal, 7-38 × 7-30 cm, sometimes 3- or 5-lobed, abaxial faces glabrous or soft-pubescent. Peduncles 11-27 cm. Phyllaries 14-21 in (2-)3 series, lanceolate to linear; outer 17-30 × 4-7.5 mm, apices acute, abaxial faces usually densely puberulent; inner 16-28 × 5-8 mm, apices rounded to acute, abaxial faces usually densely puberulent. Paleae 11.5-15 × 2-3 mm, mucros 2.5-5.5 mm. Ray florets 8-13; corollas usually orange, sometimes yellow, laminae oval to oblong, 20-33 × 6-17 mm. Disc florets 60-90. Cypselae 5-7. 2n = 34. Flowering Nov.-Jan. Disturbed sites; 0-20+ m; introduced; Fla., La.; Mexico; West Indies; Central America. Tithonia rotundifolia is widely cultivated in warm climates and may persist after plantings (e.g., in Asia).
Open Interactive Map University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium Universidad de Colima Universidad de Colima Universidad de Colima $Tithonia rotundifolia image$ University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium University of Florida Herbarium Universidad de Colima Universidad de Colima Universidad de Colima Click to Display 100 Initial Media - - - - - View All Media