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Shiny-leaved ironbark – Eucalyptus virens

Common name

shiny-leaved ironbark

Scientific name

Eucalyptus virens

Kingdom

plants

Class

Rosopsida (higher dicots)

Family

Myrtaceae (Myrtaceae)

NCA status

Vulnerable

EPBC status

Vulnerable

Wetland indicator

Endemicity

Unknown endemicity - native

Habitat

Eucalyptus virens occurs on sandy soils on low rises, hillslopes, sandstone escarpments and scree slopes. The species grows in woodland communities and is commonly associated with Angophora leiocarpa, Corymbia trachyphloia, Eucalyptus exserta, Allocasuarina inophloia and Lysicarpus angustifolius. Other species occasionally recorded with E. virens include E. panda, E. apothalassica, E. sideroxylon, Allocasuarina luehmannii and Callitris glaucophylla (Halford, 1997; Queensland Herbarium, 2012).

Description

Eucalyptus virens is a small to medium tree growing to 25 m in height. The trunk and larger branches are covered with soft and flaky, grey ironbark. The bark on the smaller branches is soft and corky. The cotyledons are reniform. The seedling leaves are produced for about 3 to 4 nodes, shortly petiolate, remaining decussate, linear to narrow-lanceolate, green and growing to 8cm long and 1cm wide. The glossy juvenile leaves have short petioles (to 0.6 cm long), alternating, linear or falcate, green and growing to 10.5 cm long and 0.8 cm wide. The bright, glossy green adult leaves have petioles to 1.6 cm long, alternating, narrow-lanceolate or falcate and growing to 11.5 cm long and 1.9 cm wide. The venation of the adult leaves is dense and fine; oil glands are small and sparse, appearing discrete or at the intersection of the veinlets.
The inflorescences are axillary and simple, or terminal and compound. The peduncles are slender, growing to 1.4 cm long and bearing 7 white flowers. Buds are pedicellate, fusiform to rhomboidal, growing 0.5 cm long and 0.4 cm wide. The outer operculum is shed early leaving a permanent ring scar on the buds. The inner operculum is conical when young, and hemispherical when mature. The fruit is pedicellate, obconical to hemispherical, growing to 0.5 by 0.5 cm. There is a thin rim on the fruits, the disc is descending, and there are 4 to 6 enclosed or slightly exserted valves. The seeds are light brown, 1 by 0.5 to 1 mm, with a very fine, shallow reticulum. The hilum is ventral (Brooker and Bean, 1987).
Eucalyptus virens is most similar to E. panda. E. virens differs in stature (E. panda grows 10 to 18m tall), juvenile and adult leaves (E. panda has grey-green juvenile and grey-green, dull adult leaves), and flowering time (E. virens flowers in Summer and E. panda in Winter).

Reproduction

Flowering in Eucalyptus virens has been recorded November - February. (Brooker and Kleinig, 1994)

Predators

(no information available)

Parasites/pathogens

(no information available)

Threatening Processes

Possible threatening processes include; loss of habitat due to vegetation clearing, timber harvesting of the species and habitat disturbance by timber harvesting (Halford, 1997). Fire, weeds and cattle grazing are threatening processes to some populations (Sparshott, 2009).

Human uses

(no information available)

References


Brooker, M.I.H. and Bean, A.R. (1987). Eucalyptus virens, a New Species of Ironbark from Queensland. Brunonia 9 (2): 223.
Brooker, M.I.H. and Kleinig, D.A. (1994). Field Guide to Eucalypts. Volume 3, Northern Australia.
Halford, D. (1997). Eucalyptus virens Species Management Profile, Department of Natural Resources, Brisbane.
Queensland Herbarium (2011). Specimen label information. Queensland Herbarium. Accessed 13/01/2012.
Sparshott, K. (2009). Expedition National Park Vegetation Report (Draft), Department of Environment and Resource Management.

Notes

(no information available)

Further resources


This page should be cited as:

Shiny-leaved ironbark – Eucalyptus virens, WetlandInfo, Department of Environment and Science, Queensland, viewed 20 October 2018, <https://wetlandinfo.des.qld.gov.au/wetlands/ecology/components/species/?eucalyptus-virens>.

Queensland Government
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