Common name: tranquility mintbush
Prostanthera askania B.J.Conn APNI* Synonyms: Prostanthera sp. 6 'Strickland State Forest' (J.H. Maiden s.n., 07/1915) APNI*
Prostanthera sp. G sensu Conn (1992) B.J.Conn APNI*
Description: Erect, openly branched shrub, to 1 m high, c. 1 m diam., strongly aromatic; branches densely covered with long, spreading hairs, moderately covered with almost sessile glands.
Leaves with lamina ovate, 12–25 mm long, 8–18 mm wide; apex obtuse; base attenuate to truncate; margins deeply toothed with teeth directed forward; surfaces 'dusty' green, covered with long ± spreading hairs, moderately covered with almost sessile glands; petiole 2–6 mm long.
Flowers in a terminal botryoid; bracteoles persistent, 2.5–3 mm long. Calyx 5–6 mm long; tube 2.5–3 mm long; upper lobe 2–3 mm long, slightly enlarged in fruit. Corolla c. 8 mm long, pale mauve to mauve. Anthers without appendage.
Flowering: spring.
Distribution and occurrence: Restricted to the Strickland State Forest and Ourimbah–Narara area (near Gosford). Grows in sclerophyll forest on ridges in or adjacent to rainforest.
NSW subdivisions: CC
Threatened species: NSW BCA: Endangered; Commonwealth EPBC: Endangered
This species is endangered by urban development.
Text by B. J. Conn
Taxon concept: Flora of NSW 3 (1992)
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.
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