| General Information |
| Distribution | Hawaiian Islands.In the Hawaiian Islands,
endemic to
Kaua`i.
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Habit
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Shrubs, often narrow, up to 2.5 m tall; stems erect to occasionally decumbent, glabrous or leaf scars appressed ciliolate.
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Leaves
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Leaves opposite, oblong-lanceolate to oblanceolate, 7-24 cm long, (0.8-)1-3.5 cm wide, faintly 5-7-nerved basally, conspicuously but finely reticulate apically, with elongate areola, glabrous, margins sharply and conspicuously serrate in upper 1/2 or below, sparsely to moderately ciliate below, apex acuminate, long-attenuate to base, base often purplish, becoming slightly dilated and somewhat clasping the stem.
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Flowers
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Heads numerous, occasionally few, often 2-5 in glomerules, in elongate-paniculate to occasionally subcorymbose inflorescences
3-40 cm long, 5-20 cm wide, peduncles hispidulous, ultimate ones 0-12 mm long; receptacle convex to conical, false involucre consisting of (6-)8-18 usually distinct receptacular bracts, each one usually associated with a floret, outer ones 3.5-5 mm long, hispidulous; florets (6-)8-18 per head, corollas yellow, usually 2.5-3 mm long, sparsely to moderately finely glandular on tube; pappus of 15-20 very narrowly linear-lanceolate, very short-fimbriate-ciliate bristles 2.5-3.5 mm long.
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Fruit
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Achenes ca. 2-3 mm long, moderately to copiously hispidulous, peripheral ones abruptly bent near base.
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Chromosomes
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2n = 28*
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