Taxandria juniperina

Taxandria juniperina commonly known as wattie, native cedar, Warren River cedar[1] or juniper myrtle is a species of tree that grows in the south west corner of Western Australia. This plant was previously classified as Agonis juniperina but is now part of the genus Taxandria. The Noongar peoples know the tree as watti.[2]

Taxandria juniperina
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Myrtaceae
Genus:	Taxandria
Species:	T. juniperina
Binomial name
Taxandria juniperina (Schauer) J.R.Wheeler & N.G.Marchant
Synonyms
Agonis juniperina

Taxandria juniperina flowers

Description

Taxandria juniperina occurs mostly as an erect tree or shrub that usually grows to less than 10 metres (33 ft) as a dense shrub but can grow up to 27 metres (89 ft) in its native environment. It has fibrous brown bark that is a light red colour on the underside. It grows as a dense shrub in space or as a tall erect tree when part of a thicket. When the leaves and young stems are bruised they release a spicy perfume from which the plant is recognised to be a member of the family Myrtaceae. It is closely related to Leptospermum (Tea Tree).[3] The tree has evergreen foliage with very narrow leaves, usually 7–13mm long and 0.3–1.5 mm wide. The flowers produced by T. juniperina occur between February to November and are described as upright whitish spikes. Each flower is white with some pink, 5 mm in diameter.[4] The species is distinguished from other members of the genera by its tree habit and the leaves which are typically 7 to 13 millimetres (0.28 to 0.51 in) length and usually flat to very slightly concave above and convex below. It also has glabrous sepals.[5]

Distribution and habitat

Taxandria juniperina occurs in a coastal strip in the south west corner of western Australia from Busselton south to Augusta to Waychinicup just east of Albany.[5] The tree prefers margins of winter-wet or permanent swamps or watercourses, but grows in a range of soil types from loam and peat to sand and gravel.[6]

Classification

First formally described by the botanist Johannes Conrad Schauer in 1844 as part of Johann Georg Christian Lehmann's work Plantae Preissianae. The plant was subsequently reclassified to Taxandria juniperina in a 2007 revision by Wheeler and Marchant into the new genus Taxandria.[7]

References

1. "Lower Warren River Action Plan" (PDF). Manjimup Land Conservation District Committee. 2006. Retrieved 17 May 2020.
2. "Noongar names for plants". kippleonline.net. Archived from the original on 20 November 2016. Retrieved 24 November 2016.
3. "Australian National Botanic Gardens - Agonis Juniperina". 2007. Retrieved 2007-06-05.
4. "Desert Tropicals - Juniper Myrtle". 2007. Retrieved 2007-06-05.
5. "A revision of the Western Australian genus Agonis (Myrtaceae) and two new segregate genera Taxandria and Paragonis" (PDF). Nuytsia. Western Australian Herbarium. 2007. Retrieved 29 December 2016.
6. "Taxandria Juniperina - FloraBase - The West Australian Flora". 2007. Retrieved 2007-06-05.
7. "Taxandria juniperina (Schauer) J.R.Wheeler & N.G.Marchant". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 15 December 2016.