''Eucalyptus canobolensis'', commonly known as the Mount Canobolas candlebark or silver-leaf candlebark, is a species of tree that is endemic to a small area of New South Wales in eastern Australia. It is a small tree with smooth bark on the trunk and branches, dull, lance-shaped adult leaves, flowers buds in groups of three, white flowers and cup-shaped, bell-shaped or conical fruit. It is only known from

Mount Canobolas Mount Canobolas, a mountain on a spur of the Great Dividing Range, is located in the Central Tablelands region of New South Wales, Australia. With an elevation of above sea level, Mount Canobolas, an extinct volcano, is the highest mountain i ...

near Orange.

Description

''Eucalyptus canobolensis'' is a tree that typically grows to a height of about and forms a lignotuber. It has smooth, often powdery, white, cream-coloured, yellowish or pink bark, sometimes with rough greyish bark at the base. The leaves on young plants and on coppice regrowth are arranged in opposite pairs, sessile, mostly long and wide on a petiole long. Adult leaves are arranged alternately, lance-shaped, dull grey or

glaucous ''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), g ...

, long and wide on a petiole long. They are more or less the same colour on both surfaces. The flower buds are arranged in groups of three in leaf

axil A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...

s on a flattened

peduncle Peduncle may refer to: *Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed *Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body **Peduncle (art ...

long, the individual buds sessile. The mature buds are oval to spindle-shaped, about long and wide with a conical operculum. Flowering has been observed in February and the flowers are white. The fruit is a woody, cup-shaped, bell-shaped or conical capsule long and wide and sessile or on a very short pedicel. The valves of the fruit extend beyond the rim.

Taxonomy and naming

Mount Canobolas candlebark was first described in 1991 by Lawrie Johnson and Ken Hill who gave it the name ''Eucalyptus rubida'' subsp. ''canobolensis'' from a specimen collected on Mount Canobolas, and published the description in the journal '' Telopea''. In 1998 John Hunter raised it to species status as ''E. canobolensis''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''canobolensis'') refers to the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

location. The ending ''-ensis'' is a Latin

suffix In linguistics, a suffix is an affix which is placed after the stem of a word. Common examples are case endings, which indicate the grammatical case of nouns, adjectives, and verb endings, which form the conjugation of verbs. Suffixes can carry ...

meaning "place for" or "where".

Distribution and habitat

''Eucalyptus canobolensis'' is only known from the upper slopes of Mount Canobolas where it grows in subalpine woodland.

Conservation status

Mount Canobolas candlebark is classified as "endangered" under the Australian Government '' Environment Protection and Biodiversity Conservation Act 1999'' and as "vulnerable" under the New South Wales Government '' Biodiversity Conservation Act 2016''. The main threats to the species are weed invasion, especially by blackberry ('' Rubus fruticosus'') and '' Pinus radiata'' from nearby plantations, infrastructure development and forestry operations.

References

{{Taxonbar, from=Q15397688 canobolensis Myrtales of Australia Flora of New South Wales Trees of Australia Plants described in 1991 Taxa named by Lawrence Alexander Sidney Johnson Taxa named by Ken Hill (botanist)