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2. Melaleuca linariifolia Smith, Trans. Linn. Soc. London. 3: 278. 1797.
[I]
Tea tree, snow-in-summer
Trees or shrubs, 2–10 m; bark papery. Leaves opposite (decussate); blade narrowly elliptic to linear-elliptic, 1.7–4.5 × 0.1–0.4 cm, veins 3, longitudinal, surfaces soon glabrescent. Inflorescences 4–20-flowered, flowers in monads, pseudoterminal, sometimes also axillary distally, to 40 mm wide. Flowers: calyx lobes glabrous abaxially, margins scarious, 0.1–0.2 mm wide; petals deciduous, 2.5–3.3 mm; filaments connate in bundles of 32–73, white or cream, 8.8–24 mm, bundle claw (5.5–)8–16 mm; style 3.5–5.2 mm; ovules 85–120 per locule. Capsules 2.5–4 mm. Cotyledons plano-convex.
Flowering late spring–early summer. Disturbed areas; 0–20 m; introduced; Fla.; Australia.
Melaleuca linariifolia is one of the sources of the essential oil called tea tree oil. Its massed flowers make it a striking garden plant in summer. Melaleuca linariifolia has been erroneously called cajeput in North America (R. P. Wunderlin and B. F. Hansen 2011); cajeput or cajuput is M. cajuputi.
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