Eucalyptus erectifolia

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Stirling Range mallee
Eucalyptus erectifolia.jpg
Eucalyptus erectifolia in the Stirling Range
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. erectifolia
Binomial name
Eucalyptus erectifolia

Eucalyptus erectifolia, commonly known as Stirling Range mallee, [1] is a species of mallee that is endemic to Western Australia. It has smooth bark, narrow lance-shaped adult leaves, flower buds in groups of between seven and thirteen, white flowers and cup-shaped fruit.

Contents

flower buds Eucalyptus erectifolia buds.jpg
flower buds
fruit Eucalyptus erectifolia fruit.jpg
fruit

Description

Eucalyptus erectifolia is a mallee that typically grows to a height of 1–5 m (3 ft 3 in – 16 ft 5 in), has smooth grey bark and forms a lignotuber. Young plants and coppice regrowth have sessile, egg-shaped to elliptical leaves 50–120 mm (2.0–4.7 in) long, 10–25 mm (0.39–0.98 in) wide and arranged in opposite pairs. Adult leaves are arranged alternately, narrow lance-shaped, 55–105 mm (2.2–4.1 in) long, 7–15 mm (0.28–0.59 in) wide on a petiole 5–10 mm (0.20–0.39 in) long. The flower buds are arranged in leaf axils in groups of between seven and thirteen on an unbranched peduncle 10–25 mm (0.39–0.98 in) long, the individual buds on a pedicel 1–4 mm (0.039–0.157 in) long. Mature buds are oval to spindle-shaped, 7–11 mm (0.28–0.43 in) long, 4–6 mm (0.16–0.24 in) wide with a conical operculum. Flowering occurs between March and May and the flowers are white. The fruit is a woody, broadly cup-shaped capsule 11–14 mm (0.43–0.55 in) long, 14–18 mm (0.55–0.71 in) wide with the valves near the level of the rim. [1] [2] [3] [4]

Taxonomy and naming

Eucalyptus erectifolia was first formally described in 1986 by Ian Brooker and Stephen Hopper from a specimen collected in the Stirling Range in 1981. The description was published in the journal Nuytsia . [4] [5] The specific epithet (erectifolia) is derived from the Latin "erectus" [6] : 827  and -folia meaning "leaved" [6] : 46  referring to the way the leaves are held in the crown. [4]

This species is part of the subgenus Eucalyptus series Diversiformae, a group of mallees that all have adult leaves held erect, buds with a single unscarred operculum and pyramidal seeds. [2]

Distribution and habitat

Stirling Range mallee grows in sandy-loamy-gravelly soils in open shrubland on hillslopes and sandplains in the Stirling Range. [1] [3]

Conservation status

Eucalyptus erectifolia is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, [1] meaning that is rare or near threatened. [7]

See also

Related Research Articles

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<i>Eucalyptus alatissima</i> Species of eucalyptus

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References

  1. 1 2 3 4 "Eucalyptus erectifolia". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. 1 2 "Eucalyptus erectifolia". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  3. 1 2 Chippendale, George M. "Eucalyptus erectifolia". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 29 June 2019.
  4. 1 2 3 Brooker, M. Ian H.; Hopper, Stephen (1986). "Notes on the informal subgenus "Monocalyptus" of Eucalyptus (Myrtaceae) and the description of three new upland species from south-west Western Australia". Nuytsia. 5 (3): 351–355. Retrieved 29 June 2019.
  5. ↑ "Eucalyptus erectifolia". APNI. Retrieved 28 June 2019.
  6. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  7. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 29 June 2019.
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