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Acacia koa, commonly known as koa, [3] is a species of flowering tree in the family Fabaceae. It is endemic to the Hawaiian Islands , [ 2 ] where it is the second most common tree. [ 4 ] The highest populations are on Hawaiʻi , Maui and Oʻahu .
Koa wilt is a relatively new disease to Hawaii, discovered in 1980.Koa wilt is caused by a forma specialis of the fungus Fusarium oxysporum, which is now abundant in Hawaiian soils and infects the native Acacia koa tree, a once-dominant species in the canopy of Hawaiian forests.
Acacia koaia is usually distinguished by growing as a short (rarely more than 5 m or 16 ft), broad, gnarled tree; having the seeds longitudinally arranged in the pod; shorter, straighter phyllodes; and much denser wood.
The Hawaiian Legacy Reforestation Initiative (HLRI) is a Hawaii-based 501(c)(3) nonprofit organization founded in 2014 that works to reforest endemic trees and restore native habitat for wildlife. [1] This includes koa, ‘ōhi‘a, māmane, naio, ko‘oko‘olau, kūkaenēnē and ‘iliahi trees. [2] [3]
Acacia confusa is a perennial tree native to South-East Asia. Some common names for it are ayangile, small Philippine acacia, Formosa acacia (Taiwan acacia), Philippine Wattle, and Formosan koa. It grows to a height of 15 m. The tree has become very common in many tropical Pacific areas, including Hawaii, where the species is considered ...
Dominant tree species include koa , koaiʻa , ʻakoko (Euphorbia spp.), ʻōhiʻa lehua (Metrosideros polymorpha), lonomea (Sapindus oahuensis), māmane (Sophora chrysophylla), loulu (Pritchardia spp.), lama (Diospyros sandwicensis), olopua (Nestegis sandwicensis), wiliwili (Erythrina sandwicensis), ʻohe makai (Polyscias sandwicensis), and ...
Leucaena leucocephala is a small fast-growing mimosoid tree native to southern Mexico and northern Central America (Belize and Guatemala) [1] [4] and is now naturalized throughout the tropics including parts of Asia. Common names include white leadtree, [5] white popinac, [1] horse tamarind, [1] ipil-ipil, [6] [7] koa haole, [8] and tan-tan. [9]
Acacia, commonly known as wattles [3] [4] or acacias, is a genus of about 1,084 species of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Australasia , but is now reserved for species mainly from Australia, with others from New ...