| General Information |
| Distribution | Widespread from China to Malesia, Australia, tropical Africa, Polynesia, and Micronesia.In the Hawaiian Islands,
indigenous to
Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.
|
|
|
|
|
|
Habit
|
Perennial herb, 5‒10 dm tall; stems erect, often red tinged, glandular pubescent with purplish hairs.
|
Leaves
|
Leaves petiolate; blade ovate to rhombic, 5‒15(‒20) cm long, 1.5‒7(‒8) cm wide, glabrous, margin coarsely serrate with gland tipped teeth, base cuneate to attenuate; petiole red tinged, about ½‒⅓ as long as blade.
|
Flowers
|
Heads ca. 5 mm in diameter; involucral bracts linear spatulate, 4‒5 mm long, margin ciliate; disk corollas white, 3.5‒4 mm long.
|
Fruit
|
Achenes brown, warty, 4‒5 mm long.
|
|
|
|
|
|
|
|
|
|
|
Chromosomes
|
2n = 20.
|
|
|
Contributor
|
Nancy Khan
|
