| Dicotyledon | Literature for Ageratina riparia
Wagner et al., 1990, 1999. |
| Asteraceae -- The Sunflower Family | Bibliography |
| Ageratina riparia | |
Common name(s): Hamakua pamakani, speading mist flower |
| General Information | ||
|---|---|---|
| Distribution | Native to Mexico and the West Indies.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i. |
|
| Habit |
Spreading subshrubs from a creeping rootstock; stems sprawling, 5-10 dm long, sparsely puberulent. |
|
| Leaves |
Leaves lanceolate to elliptic, 4-8(-12) cm long, 1-1.5 cm wide, margins sharply serrate, petioles 0.5-1.3 cm long. |
|
| Flowers |
Inflorescences lax; involucral bracts 4-5 mm long, puberulent; corollas white, 3-3.5 mm long. |
|
| Fruit |
Achenes black, 1.5-2 mm long, puberulent on the angles. |
|
| Chromosomes |
2n = 48, 51 |
|