Common name: Smooth Zieria, Smooth-leaved Zieria, Twiggy Midge Bush
Zieria laevigata Bonpl. APNI*
Synonyms: Zieria laevigata subsp. A sensu Jacobs & Pickard (1981) APNI*
Zieria laevigata subsp. trichocaulis APNI*
Description: Erect shrub to 1.5 m high, ± glabrous; branches ridged, not warted, glabrous or occasionally hirsute at nodes between leaf decurrencies.
Leaves with central leaflet linear-elliptic, 15–40 mm long, 1–2.5 mm wide, apex ± acute; margins generally ± revolute to midrib, ± crenate; upper surface deep green, not warted, glabrous; lower surface pale green to whitish, not warted, velvety with stellate hairs, midvein glabrous; petiole 2–4 mm long.
Inflorescences about as long as leaves, commonly 3-flowered (range 3–23). Calyx lobes broad-triangular, c. 2.6 mm long, dotted with oil glands, glabrous and ± glaucous. Petals 3–5 mm long, imbricate, white or pale pink, tomentose.
Cocci glabrous, occasionally glaucous, slightly warted, without a terminal appendage.
Flowering: late winter to spring.
Distribution and occurrence: Widespread, in heath or dry sclerophyll forest in skeletal soils on sandstone or granitic outcrops; north from Jervis Bay.
NSW subdivisions: ?NC, CC, SC, NT, CT, NWS
Other Australian states: Qld
Text by J. A. Armstrong & G.J. Harden
Taxon concept: J.A. Armstrong (2002)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.