General Information |
Distribution | In the Hawaiian Islands,
endemic to
Maui.
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Habit
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Erect and unbranched, or branched and erect or decumbent rosette shrubs up to 2 m tall; vegetative stems usually 1-5(-15) dm long.
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Leaves
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Leaves green, usually narrowly elliptic-sword-shaped, broadest at or slightly above middle, flattened, 5-31 cm long, 0.4-2.3 cm wide, 5-11-nerved, glabrous or puberulent to hispidulous or occasionally becoming canescent on basal portions of upper surface, margins usually remotely hispid-ciliate at base, becoming densely pilosulous-ciliate at apex.
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Flowers
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Heads usually 10-200 or more in usually lax, racemose inflorescences 10-100 cm long, 6-40 cm wide; receptacle conical, up to ca. 1 cm in diameter, false involucral cup consisting of usually 20-45 receptacular bracts 8-13 mm long; ray florets usually 0-10 per head, rays pale yellow or purple-tinged, 2-3-lobed, narrowly tubular for ca. 1 mm basally, apically broadened into a limb ca. 2 mm wide and 1.5-3.5 mm long; disk florets ca. 100-300 per head, corollas pale yellow, 3-4.5(-5) mm long, glabrous or puberulent at base, eglandular; pappus of ray florets reduced to a minute coroniform rim, that of disk achenes consisting of 2-9 unequal scales 1-2(-3) mm long on the dorsal summits.
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Fruit
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Achenes somewhat arcuate, 6-9 mm long.
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Chromosomes
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2n = 28*
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