Eucalyptus grossa
{{Short description|Species of eucalyptus}}
{{speciesbox
|name = Coarse-leaved mallee
|image = Eucalyptus grossa.jpg
|image_caption = Eucalyptus grossa near Balladonia
|status =
|status_system =
|genus = Eucalyptus
|species = grossa
|authority = F.Muell. ex Benth.{{cite web|title=Eucalyptus grossa|url= https://biodiversity.org.au/nsl/services/apc-format/display/75531|publisher=Australian Plant Census|access-date=23 July 2019}}
|synonyms = Eucalyptus incrassata var. grossa (F.Muell. ex Benth.) Maiden
}}
Eucalyptus grossa, commonly known as coarse-leaved mallee,{{FloraBase|name=Eucalyptus grossa|id=5666}} is a species of mallee or rarely a straggly tree, that is endemic to Western Australia. It has rough, fibrous bark on the trunk and all but the thinnest branches, broadly lance-shaped to egg-shaped adult leaves, flower buds in groups of seven, yellowish green flowers and cup-shaped to cylindrical fruit.File:Eucalyptus grossa buds.jpgFile:Eucalyptus grossa fruit.jpg
Description
Eucalyptus grossa is a mallee, rarely a straggly tree or sometimes a shrub, that grows to a height of {{cvt|0.5-5|m}} and forms a lignotuber. It has rough, fibrous, grey to brownish bark on the trunk and branches. Young plants and coppice regrowth have more or less egg-shaped leaves that are {{cvt|45-80|mm}} long and {{cvt|30-55|mm}} wide. Adult leaves are egg-shaped to broadly lance-shaped, glossy green, {{cvt|75-125|mm}} long and {{cvt|25-55|mm}} wide on a petiole {{cvt|15-45|mm}} long. The flower buds are arranged in leaf axils on a thick, downturned, unbranched peduncle {{cvt|10-35|mm}} long, the individual buds sessile or on thick pedicels up to {{cvt|2|mm}} long. Mature buds are {{cvt|18-32|mm}} long and {{cvt|7-13|mm}} wide with a conical operculum. Flowering occurs mainly from August to November and the flowers are yellowish green. The fuit is a woody, cylindrical capsule {{cvt|14020|mm}} long and {{cvt|10-15|mm}} wide with the valves at or below rim level.{{cite web |title=Eucalyptus grossa |url=https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_grossa.htm|publisher=Euclid: Centre for Australian National Biodiversity Research |access-date=2 June 2020}}{{cite web |last1=Chippendale |first1=George M. |title=Eucalyptus grossa |url=https://profiles.ala.org.au/opus/foa/profile/Eucalyptus%20grossa |publisher=Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra |access-date=23 July 2019}}
Taxonomy and naming
Eucalyptus grossa was first formally described in 1867 by George Bentham in Flora Australiensis from an unpublished description by Ferdinand von Mueller. The type collection was made by George Maxwell near the Phillips River and its tributaries.{{cite web|title=Eucalyptus grossa|url= https://id.biodiversity.org.au/instance/apni/455081 |publisher=APNI|access-date=23 July 2019}}{{cite book |last1=Bentham |first1=George |last2=von Mueller |first2=Ferdinand |title=Flora Australiensis (Volume 3) |date=1867 |publisher=Lovell Reeve & Co. |location=London |page=232 |url=https://www.biodiversitylibrary.org/item/41807#page/240/mode/1up |access-date=23 July 2019}} The specific epithet (grossa) is from the Latin grossus, meaning 'thick' or 'coarse', referring to the leaves, buds and fruit.
Distribution and habitat
Coarse-leaved mallee grows around granite rocks and in thickets on flat and slightly undulating ground from near Newdegate to the south and east of Norseman in the Coolgardie, Esperance Plains and Mallee biogeographic regions.
Taxonomy
The species was first formally described by botanist George Bentham in 1867.
Conservation status
This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.
Uses
=Use in horticulture=
This species has ornamental flowers and can be maintained as a dense, compact shrub if regular pruning is undertaken. It has proved adaptable to a wide range of conditions in temperate areas in Australia.
=Cultural references=
The coarse-leaved mallee appeared on a 50 cent Australian postage stamp in 2005.{{cite web |title=Australian Plants on Stamps |url=http://www.anbg.gov.au/stamps/stamp-euc-grossa-05.html |publisher=Australian National Botanic Gardens |access-date=23 July 2019}}
Image:Eucalyptus grossa habit.jpg|Cultivated specimen in Huntington Gardens, Los Angeles