Description
Key Characters:
Growth Form:
Shrub or tree 2.5–7 (–10 m) high, often multi–stemmed with bushy crowns.
Stems:
Branchlets obscurely ribbed or ribless, ribs not resinous or with a normally thin layer of translucent resin, new shoots resinous, with a dense layer of dark-colored glandular hairlets.
Roots:
Leaves:
Leaves simple, modified into phyllodes.
Alternate.
Phyllodes narrowly linear to linear-elliptic, mostly shallowly incurved, not rigid, flat, 4–12 (–18) cm long, (1–) 1.5–3 (–4) mm wide.
Blades glabrous or obscurely appressed-hairy between veins, normally grey-green to subglaucous and often with a silvery sheen.
Longitudinal veins numerous and very fine, margins not resinous; gland 0–1(–3) mm above pulvinus.
Flowers:
Inflorescences mostly simple; peduncles 4–10 (–15) mm long, sparsely to ± densely sericeous with commonly some red-brown glandular hairlets; spikes (10–) 15–30 (–40) mm long.
Flowers 5-merous.
Calyx of 5 sepals; Sepals free, ½–¾ length of petals, normally linear-spathulate.
Corolla of 5 petals.
Fruit:
Pods mostly straight-edged; flat; (1–) 1.5–4 cm long; (6–) 7–15 mm wide including the wing 0.4–1 (–2) mm wide; chartaceous to firmly chartaceous; normally brown to grey-brown; glabrous or sparsely appressed puberulous; obscurely reticulate; margins winged or rarely bevel-edged; often shiny-resinous.
Seeds transverse to oblique; 3.5–5 mm long; 2.5–3 (–3.5) mm wide; elliptic to oblong or ovate; aril small; whitish or cream.
Ploidy:
Habitat:
Elevation Range:
Island Status
O'ahu Only found in cultivation
Molokai Only found in cultivation
Lana'i Naturalized
Kaho'olawe Only found in cultivation