Zinnia peruviana is an annual plant up to 50 cm tall (rarely 100 cm tall).[2][3] The stems are green, but later become yellow or purple.[3] The leaves are ovate, elliptic or lanceolate, 2.5–7 cm long and 8–3.5 cm wide; 3- to 5-nerved.[2][3] The peduncles are 1–7 cm long.[2][3]Flower heads with 6–21 red, maroon or yellow ray florets (with a 0.8–2.5 cm long petal each) surrounding 12–50 yellow disc florets (with 0.1 cm long corolla lobes).[2][3] Fruits (cypselae) oblanceolate to narrowly elliptic, 0.7–1 cm long, 3-angled or compressed, striate.[2][3]
Distribution and habitat
The native range of Z. peruviana spans from southeastern Arizona and the Greater Antilles south to Argentina.[2][3] It grows mostly on open areas or rocky slopes between 800–3000 m of elevation.[3][4]
^Germishuizen, G.; Meyer, N. (2003). Plants of southern Africa : an annotated checklist. Pretoria: National Botanical Institute. p. 310. ISBN1919795995. OCLC54957425.