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Prostanthera lanceolata is a species of flowering plant in the family Lamiaceae and is endemic to near-coastal area of eastern Australia. It is an erect, aromatic shrub that has stems that are square in cross-section, glandular, egg-shaped leaves and mauve or deep bluish-purple flowers.

Prostanthera lanceolata
In Sherwood Nature Reserve
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Lamiaceae
Genus:	Prostanthera
Species:	P. lanceolata
Binomial name
Prostanthera lanceolata Domin[1]

Description

Prostanthera lanceolata is an erect, aromatic shrub that typically grows to a height of 3–4 m (9.8–13.1 ft) and has branches that are square in cross-section. The leaves are mid to dark green, paler below, narrow egg-shaped to egg-shaped, 15–25 mm (0.59–0.98 in) long and 9–12 mm (0.35–0.47 in) wide on a petiole 2–5 mm (0.079–0.197 in) long. The flowers are arranged in bunches near the ends of branchlets with bracteoles about 1 mm (0.039 in) long at the base, but that fall off as the flower develops. The sepals are about 4 mm (0.16 in) long, forming a tube about 2 mm (0.079 in) long with two lobes, the upper lobe 1.5–2 mm (0.059–0.079 in) long. The petals are mauve to deep bluish-purple and 8–12 mm (0.31–0.47 in) long. Flowering occurs in spring.[2] This species is included in Prostanthera ovalifolia in Queensland.[1]

Taxonomy

Prostanthera lanceolata was first formally described in 1928 by Karel Domin in Bibliotheca Botanica from material he collected near the "Tambourine Mountains" in 1910.[3]

Distribution and habitat

This mintbush grows in forest in near-coastal areas of New South Wales and Queensland.[2]

References

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