| Dicotyledon | Literature for Ageratum conyzoides
Wagner et al., 1990, 1999; Lorence & Wagner, 2020. |
| Asteraceae -- The Sunflower Family | Bibliography |
| Ageratum conyzoides | |
Common name(s): maile hohono, maile honohono, maile kula |
| General Information | ||
|---|---|---|
| Distribution | Native to Central and South America.In the Hawaiian Islands, naturalized on Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. | |
| Habit |
Malodorous annual or short-lived perennial herb, 3‒15 dm tall; stems sparingly branched, sparsely to densely pilose. |
|
| Leaves |
Leaves petiolate; blade ovate to broadly ovate, 3‒10 cm long, 3‒7 cm wide, abaxial surface conspicuously dotted with glands, margin crenate, base cuneate to truncate, apex acute, tip rounded; petiole 1‒5 cm long. |
|
| Flowers |
Heads usually in flat topped cymes; involucral bracts 3‒4 mm long, glabrous to sparsely hirsute; corollas bluish lavender, rarely whitish; pappus of 5 well-developed awn tipped scales, rarely reduced or not awn tipped. |
|
| Fruit |
Achenes scaberulous on the angles. |
|
| Chromosomes |
2n = 20, 40. |
|
| Contributor |
Nancy Khan |
