| Dicotyledon | Literature for Artemisia australis
Wagner et al., 1990, 1999. |
| Asteraceae -- The Sunflower Family | Bibliography |
| Artemisia australis | |
Common name(s): wormwood, `ahinahina, hinahina, hinahina kuahiwi |
| General Information | ||
|---|---|---|
| Distribution | In the Hawaiian Islands, endemic to Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. | |
| Habit |
Faintly to strongly aromatic subshrubs diffusely branching from base; stems numerous, lax, erect to decumbent, rounded, 1.5-4.5(-5) dm long, glabrate, roughened by leaf scars. |
|
| Leaves |
Leaves broadly ovate in outline, (3-)5-7(-8.5) cm long, 1.5-4.5 cm wide, bipinnate and deeply lobed, the segments linear to broadly lanceolate, (1-)1.5-7 mm wide, apex obtuse to acute, upper surface sparsely pubescent to glabrous and glandular punctate, lower surface white tomentose, petioles (1-)2-2.5 cm long. |
|
| Flowers |
Heads in leafless panicles surrounded by to scarcely surpassing the leaves, ca. 4-7 cm long, 3-4 cm in diameter, pyramidal, the branches widely divergent, each head 2-3(-4) mm high, 1.5-3(-4) mm wide, peduncles usually 8-15 mm long, pedicels slender, (1-)2-2.5 cm long, erect to slightly reflexed; involucral bracts 6-12(-16), narrowly to broadly elliptic or obtuse, margins usually scarious or, if absent, the bracts narrow and nearly linear, lower surface densely canescent; florets (6-)8-20(-26) per head, the outer ones female and inner ones perfect, tubular, (1-)1.2-1.7 mm long, outer surface glabrous to densely glandular; pappus absent. |
|
| Fruit |
Achenes pale to dark brown, obconical, slightly flattened, ribbed, (0.2-)0.3-0.8(-1.4) mm long, densely viscid, glabrous, or sparsely pubescent. |
|
| Chromosomes |
2n = 18* |
|
