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Eucalyptus youngiana
 
 
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Eucalyptus youngiana, commonly known as Large-fruited Mallee, Ooldea Mallee and Yarldarlba, is a tree that occurs in arid and semi-arid areas of southern Western Australia
Western Australia

Western Australia is a States and territories of Australia occupying the entire western third of the Australia . The nation's largest state and the second largest subnational entity in the world, it has 2.1 million inhabitants , 85% of whom live in the south-west corner of the state....
 and South Australia
South Australia

South Australia is a States and territories of Australia of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories....
.

. youngiana grows as a mallee
Mallee (habit)

Mallee is the growth habit of woody plants that grow with multiple stems springing from an underground lignotuber, usually to a height of no more than ten metres....
 from four to ten metres high, with rough, flaky bark and red or yellow flowers from June to October.

species was first published in 1876 by Ferdinand von Mueller
Ferdinand von Mueller

Baron Sir Ferdinand Jacob Heinrich von Mueller, KCMG was a German Australian physician, geographer, and most notably, a botanist....
, based on specimens collected at Queen Victoria Spring by Jess Young
Jess Young

Jess Young was an explorer who accompanied Ernest Giles during his Giles expedition of May 1875, making some important botany collections along the way....
 during the Giles expedition of May 1875.






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Eucalyptus youngiana, commonly known as Large-fruited Mallee, Ooldea Mallee and Yarldarlba, is a tree that occurs in arid and semi-arid areas of southern Western Australia
Western Australia

Western Australia is a States and territories of Australia occupying the entire western third of the Australia . The nation's largest state and the second largest subnational entity in the world, it has 2.1 million inhabitants , 85% of whom live in the south-west corner of the state....
 and South Australia
South Australia

South Australia is a States and territories of Australia of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories....
.

Description

E. youngiana grows as a mallee
Mallee (habit)

Mallee is the growth habit of woody plants that grow with multiple stems springing from an underground lignotuber, usually to a height of no more than ten metres....
 from four to ten metres high, with rough, flaky bark and red or yellow flowers from June to October.

Taxonomy

The species was first published in 1876 by Ferdinand von Mueller
Ferdinand von Mueller

Baron Sir Ferdinand Jacob Heinrich von Mueller, KCMG was a German Australian physician, geographer, and most notably, a botanist....
, based on specimens collected at Queen Victoria Spring by Jess Young
Jess Young

Jess Young was an explorer who accompanied Ernest Giles during his Giles expedition of May 1875, making some important botany collections along the way....
 during the Giles expedition of May 1875. The specific name honours Young.

There are no subspecies or varieties. In 1969 Clifford Boomsma demoted it to a subspecies of E. pyriformis
Eucalyptus pyriformis

Eucalyptus pyriformis, Pear-fruited mallee, Dowerin Rose, is a small, straggly mallee with smooth, grey or salmon-pink bark often sheeding in ribbons at the base....
, but this was overturned by Ian Brooker
Ian Brooker

Murray Ian Hill Brooker Order of Australia , better known as Ian Brooker, is an Australian botanist. He is widely recognised as the leading authority on the genus Eucalyptus....
 in 2000.

Distribution and habitat

It has a fairly wide distribution, occurring throughout arid and semi-arid areas of Western Australia and South Australia. The relief is generally gentle slopes. It grows in red sands and sandy loams.