Eucalyptus kartzoffiana
Araluen Gum
Araluen Gum
Wikipedia links: Angiosperms > Eudicots > Rosids > Myrtaceae > Eucalyptus kartzoffiana
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Common name: Araluen Gum
The area now known as Araluen lies on the traditional lands of Walbanga people and the name 'Araluen' meant 'water lily' or 'place of the water lilies'
Conservation status: Vulnerable
This eucalypt is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the NSW Government Biodiversity Conservation Act 2016
The main threats to the species include its small population size, land clearing, management of grazing land, roadside maintenance and herbicide use
Etymology:
The name Eucalyptus is derived from the Ancient Greek words eu meaning 'good'and kalypto meaning '(I) cover, conceal, hide', referring to the operculum covering the flower buds
The specific epithet (kartzoffiana) honours Michael Eugene Kartzoff a NSW forestervwho for a while prospected for gold in the Araluen district
Flowers:
The flowers buds are arranged in leaf axils in groups of three on an unbranched peduncle 2–5 mm long, the individual buds sessile
Mature buds are cylindrical, 5–6 mm long and 4–5 mm wide and often glaucous, with a rounded to conical operculum
Flowering occurs in February and the flowers are white
Fruit:
The fruit is a sessile, woody, bell-shaped capsule 4–6 mm long and 4–9 mm wide with the valves protruding above the rim
The fruit is glaucous at first
Leaves:
Young plants and coppice regrowth have sessile, glaucous, egg-shaped or heart-shaped leaves 45–65 mm long and 15–45 mm wide
Adult leaves are the same dull bluish green on both sides, lance-shaped to curved, 80–265 mm long and 12–36 mm wide on a petiole 10–41 mm long
Crown often consisting of alternate, petiolate, broadly lanceolate intermediate leaves and adult leaves
Stem & branches:
It has rough, fibrous, scaly or flaky, greyish bark on part or most of the trunk, smooth white, grey or cream-coloured bark above
Roots:
Habit:
It is a medium-sized tree that typically grows to a height of 30 m and forms a lignotuber
Habitat:
It grows in woodland and forest
Distribution:
Endemic to a small area of southeastern NSW
It has a restricted distribution on granite-derived soils south-east of Braidwood
Additional notes:
Taxonomy and naming
Eucalyptus kartzoffiana was first formally described in 1973 by Lawrie Johnson and Donald Blaxell from a specimen collected in 1978 by Johnson on the Braidwood road near Araluen
The description was published in Contributions from the NSW National Herbarium
Sources of information:
https://en.wikipedia.org/wiki/Eucalyptus_kartzoffiana (2023)
https://www.anbg.gov.au/biography/kartzoff-michael-eugene.html (May 2024)
https://www.environment.gov.au/cgi-bin/sprat/public/publicspecies.pl?taxon_id=19330 (May 2024)
https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_kartzoffiana.htm (July 2024)