''Eucalyptus ignorabilis'' is a species of small to medium-sized tree that is endemic to southeastern Australia. It has rough, fibrous bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped to hemispherical fruit. It is found in far southeastern New South Wales and eastern Victoria.

Description

''Eucalyptus ignorabilis'' is a tree that typically grows to a height of and forms a lignotuber. It has rough, fibrous, spongy bark on the trunk and branches. Young plants have sessile leaves at first, the leaves lance-shaped to oblong or curved, dull green, long and wide. Adult leaves are lance-shaped to curved, long and wide on a petiole long. The flower buds are arranged 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 in groups of seven on an unbranched

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 on

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

long. Mature buds are oval to spindle-shaped, long and wide with a rounded to conical operculum. Flowering has been recorded in January and April and the flowers are white. The fruit is a woody, cup-shaped to hemispherical capsule long and wide with the valves at rim level or slightly protruding.

Taxonomy and naming

''Eucalyptus ignorabilis'' was first described in 1991 by Lawrie Johnson and Ken Hill from a specimen they collected near Seaton in 1986. The description was published in the journal '' Telopea''. 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 ...

is from the Latin ''ignorabilis'', 'unknown', referring to the previous inclusion of this species with '' E. aromaphloia''.

Distribution and habitat

This eucalypt grows in woodland in sandy soil in swampy areas south from the

Nadgee Nature Reserve The Nadgee Nature Reserve is a protected nature reserve that is located in the far south coast region of New South Wales, in eastern Australia. The reserve is situated to the immediate south of Beowa National Park. Its southern border is boun ...

in New South Wales and sporadically as far west as Erica in Victoria.

References

{{Taxonbar, from=Q15400844 ignorabilis 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)