| Dicotyledon | Literature for Sonchus oleraceus
Lorence & Wagner, 2020. |
| Asteraceae -- The Sunflower Family | Bibliography |
| Sonchus oleraceus | |
Common name(s): sow thistle, pualele |
| General Information | ||
|---|---|---|
| Distribution | Native to Europe, now a cosmopolitan weed.In the Hawaiian Islands, naturalized on Kure, Midway, French Frigate Shoals, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. |
|
| Habit |
Annual herb, 1‒20 dm tall, subglabrous, sometimes with a few glandular hairs in the inflorescence. |
|
| Leaves |
Leaves lanceolate, cordate-lanceolate to spatulate, 6‒30 cm long, 1‒15 cm wide, usually lyrate pinnatifid, sometimes merely toothed, sessile and auriculate, auricles acute at base. |
|
| Flowers |
Involucre 9‒13 mm high in fruit. |
|
| Fruit |
Achenes transversely rugulose and 6‒10-ribbed, 2.5‒3 mm long, ca. 3‒4 times as long as wide. |
|
| Chromosomes |
2n = 16, 18, 32, 36. |
|
| Contributor |
Nancy Khan |
