''Eucalyptus beaniana '', commonly known as the Bean's ironbark, is a small tree that is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Queensland Queensland ( , commonly abbreviated as Qld) is a States and territories of Australia, state in northeastern Australia, and is the second-largest and third-most populous state in Australia. It is bordered by the Northern Territory, South Austr ...

. It has rough, furrowed "ironbark" on the trunk and branches, dull green to bluish, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to conical fruit. It is only known from four locations in southern inland Queensland. Eucalyptus beaniana buds

Description

''Eucalyptus beaniana'' is a tree that grows to a height of and forms a

lignotuber A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a respons ...

. It has hard black "ironbark" on its trunk and larger branches. Branches thinner than about have smooth, brownish white bark. Young plants and

coppice Coppicing is the traditional method in woodland management of cutting down a tree to a tree stump, stump, which in many species encourages new Shoot (botany), shoots to grow from the stump or roots, thus ultimately regrowing the tree. A forest ...

regrowth have leaves that are arranged alternately, linear, long and wide on a short

petiole Petiole may refer to: *Petiole (botany), the stalk of a leaf, attaching the blade to the stem *Petiole (insect anatomy) In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and ...

. Adult leaves are the same dull green to bluish colour on both sides, lance-shaped to curved, long and wide on a petiole long. The flower buds are arranged in group of seven, mostly on the ends of the branches. The groups are on a branched peduncle long, the individual flowers on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. Mature buds are club-shaped to spindle-shaped or more or less cylindrical, long and wide. The operculum is about as long as, or slightly shorter than the floral cup and blunt conical to rounded. Flowering has been recorded in September and the flowers are white. The fruit is a woody, cup-shaped to conical capsule long, wide on a pedicel long with the valves level or slightly protruding. ''Eucalyptus beaniana'' is closely related to '' E. taurina'', but can be distinguished by the linear juvenile leaves and by larger amount of smooth bark on the branches.

Taxonomy and naming

''Eucalyptus beaniana'' was first formally described by Ken Hill and

Lawrie Johnson Lawrence Alexander Sidney Johnson (26 June 1925 – 1 August 1997) known as Lawrie Johnson, was an Australian taxonomic botanist. He worked at the Royal Botanic Gardens, Sydney, for the whole of his professional career, as a botanist (1948–1 ...

in 1991 in the journal '' Telopea'' from samples collected near the Isla Gorge lookout carpark by Johnson and

Anthony Russell Bean Anthony Russell Bean (born 1957) is an Australian botanist who works at the Queensland Herbarium and Brisbane Botanic Gardens, Mount Coot-tha. Since 1982, he has led the Eucalyptus Study Group of the Society for Growing Australian Plants. Caree ...

in 1984. The

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

(''beaniana'') honours Anthony Bean.

Distribution and habitat

Bean's ironbark is found growing in shallow and sandy soils as part of woodland communities along with numerous other eucalypt species, on

quartzose Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical fo ...

and sandstone ridges. It is known from only four locations in south-east Queensland, in the

Isla Gorge National Park Isla Gorge is a national park in Queensland, Australia, 415 km northwest of Brisbane, gazetted in 1964. It contains a rest area with toilets and a camping area, situated along the Leichhardt Highway just south of Theodore, Queensland, Theod ...

, near

Taroom Taroom is a town in the Shire of Banana and suburbs and localities (Australia), locality split between the Shire of Banana and the Western Downs Region in Queensland, Australia. In the , Taroom had a population of 885 people. Geography The t ...

, Cracow and

Mundubbera Mundubbera ( ) is a rural town and a locality in the North Burnett Region, Queensland, Australia. In the , the locality of Mundubbera had a population of 1,120 people. Mundubbera is the self-proclaimed "Citrus Capital of Queensland", although ...

Conservation

''Eucalyptus beaniana'' is listed as "vulnerable" under the Australian Government ''

Environment Protection and Biodiversity Conservation Act 1999 The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and cult ...

'' and under the Queensland Government ''

Nature Conservation Act 1992 The ''Nature Conservation Act 1992'' is an act of the Parliament of Queensland, Australia, that, together with subordinate legislation, provides for the legislative protection of Queensland's threatened biota. As originally published, it prov ...

''.

References

{{Taxonbar, from=Q7212770 Trees of Australia beaniana Myrtales of Australia Flora of Queensland

Description

Taxonomy and naming

Distribution and habitat

Conservation

See also

References