| Dicotyledon | Literature for Acacia mearnsii
Wagner et al., 1990, 1999. |
| Fabaceae -- The Pea Family | Bibliography |
| Acacia mearnsii | |
Common name(s): black wattle |
| General Information | ||
|---|---|---|
| Distribution | Native to New South Wales and Tasmania, Australia.In the Hawaiian Islands, naturalized on Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. | |
| Habit |
Trees (shrubby when young) up to 50 m tall; branches densely minutely gray pubescent. |
|
| Leaves |
Leaves bipinnately compound, with 8-21 pairs of pinnae, leaflets 20-33 pairs in the lower pinnae, up to 40 pairs in the uppermost pinnae, linear-oblong, 1.5-4 mm long, 0.5-0.8 mm wide, with a nectary on the main rachis between or near each pair of pinnae. |
|
| Flowers |
Flowers ca. 1.8 mm long, in heads ca. 5 mm in diameter (excl. stamens), these arranged in terminal leafy panicles not exceeding the subtending leaves; corolla dark yellow; stamens ca. 3 mm long. |
|
| Fruit |
Pods oblong, somewhat moniliform, laterally flattened, constricted between all of the seeds, 7.5-10 cm long, 0.6-0.8 cm wide, sutures gray, pubescent. |
|
| Seeds |
Seeds ellipsoid, laterally flattened, 4-7 mm long, 3-6 mm in diameter. |
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