Leaves opposite, imbricate, small and narrow, dotted with oil glands.
Inflorescences axillary, consisting of 1–3 flowers on a common peduncle, often forming terminal clusters. Flowers 5- or rarely 6-merous, white, pink or yellow. Sepals small. Petals free. Stamens equal to the number of petals and opposite them, or twice as many. Ovary 1-locular, placentation apical, or subapical to lateral, ovules 2–10, collateral, never superposed.
Fruit an indehiscent nut, scarcely enlarged from flower; seed usually solitary.
Distribution and occurrence: World: c. 22 species, endemic Australia. Australia: Qld, N.S.W., Vic., S.A., W.A.
Text by Peter G. Wilson
| ||Key to the species|| |
|1||Flowers 6-merous; ovules usually 8||Micromyrtus hexamera|
|Flowers 5-merous; ovules 2 or 4||2|
|2||Ovules 2; hypanthium less than 1 mm long||Micromyrtus minutiflora|
|Ovules 4–66; hypanthium usually more than 1 mm long|
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|3||Leaves with keel ciliate; margins of sepals fimbriate||Micromyrtus blakelyi|
|Leaves with keel glabrous; margins of sepals minutely toothed to entire|
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|4||Hypanthia flanked with 2 lateral pairs of ribs.||Micromyrtus ciliata|
|Hypanthia with 5–8 ribs, ± equally spaced.|
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|Hypanthia up to 8-ribbed, ribs branching acutely towards the base of hypanthia.|
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|6||Leaves obovate, oblanceolate to oblong, 0.6–1.4 mm wide; flowers distinctly pedunculate.||Micromyrtus grandis|
|Leaves linear to oblanceolate, 0.5–0.8 mm wide; flowers ± sessile.|
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