Daisy family
Compositae
Ti-tho'ni-a. Ten species of tall sunflowerlike shrubs or woody perennial herbs native in Mexico and Central America and naturalized elsewhere in the tropics. One species grown as an annual in the North.
Description
Leaves alternate or sometimes opposite on lower stem, broadly ovalish, deeply lobed, or coarsely round-toothed. Flowerheads usually solitary on long, hollow stems, the disk flowers bisexual, fertile, yellow, the ray flowers neutral, golden to orange.
How to Grow
Start seeds indoors 6-8 weeks before last spring frost. Plant outdoors when danger of frost is past. Prefers warm weather.
Tithonia rotundifolia
Mexican Sunflower
. 4-6 ft. (1.2-1.8 m) high, shrubby or woody. Flowerheads nearly 3 in. (7.5 cm) wide, the ray and disk flowers orange or yellow. Mexico and Central America. One of the most heat-resistant flowers. Tender annual.
