Kunzea glabrescens

Last updated

Spearwood
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Kunzea
Species:
K. glabrescens
Binomial name
Kunzea glabrescens

Kunzea glabrescens, commonly known as spearwood, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a large shrub with leaves and flowers similar to those of K. ericifolia but has differently shaped bracteoles. It is often common in wet areas around Perth.

Contents

Description

Kunzea glabrescens is a shrub or tree with several main stems and many branches and which grows to a height of up to 4 m (10 ft). The leaves are linear to lance-shaped with the narrower end towards the base, mostly 5–8 mm (0.2–0.3 in) long and less than 1 mm (0.04 in) wide with a petiole up to 1 mm (0.04 in) long. The flowers are arranged in dense heads of 18 to 28 mainly on the ends of the longer branches. The flowers are surrounded by egg-shaped bracts 2–3 mm (0.08–0.1 in) long and 1–2.5 mm (0.04–0.1 in) wide and pairs of broadly egg-shaped bracteoles which are 2 mm (0.08 in) long and 3 mm (0.1 in) wide. The floral cup is 3–4 mm (0.1–0.2 in) long and the five sepals are egg-shaped to triangular, glabrous and 1–2 mm (0.04–0.08 in) long. The five petals are 1–2 mm (0.04–0.08 in) long and pale yellow and there 30-45 stamens. Flowering mostly occurs in October and November and is followed by fruit which are urn-shaped capsules. [1]

Taxonomy and naming

Kunzea glabrescens was first formally described in 1996 by Hellmut R. Toelken from a specimen collected near Lake Goolelal in Greenwood and the description was published in Journal of the Adelaide Botanic Gardens . [2] The specific epithet (glabrescens) is derived from the Latin word glaber meaning "hairless", "bald" or "smooth" [3] :122 and the suffix -escens meaning "becoming", [3] :135 referring to the leaves being hairless or becoming so with age. [4] The genus was named after Gustav Kunze who was a professor of botany, entomologist and physician. [4]

Distribution and habitat

Kunzea glabrescens typically grows in sandy soil and is often found in wet depressions and along watercourses as far north as Gingin and then south through the Swan Coastal Plain, Peel region through the South West region and extending into the Great Southern region as far east as Albany. [4] [5]

Conservation

This kunzea is listed as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [5]

Related Research Articles

<i>Kunzea parvifolia</i> Species of flowering plant

Kunzea parvifolia, commonly known as the violet kunzea, is a flowering plant in the myrtle family, Myrtaceae and is endemic to eastern Australia. It is a wiry shrub with small, narrow leaves and clusters of pink to purple flowers in spring.

<i>Kunzea montana</i> Species of flowering plant

Kunzea montana, commonly known as mountain kunzea, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub or small tree with more or less round leaves and heads of cream-coloured to pale yellow flowers on the ends of the branches in late spring. It is an uncommon species, growing on rocky mountain slopes, but all populations are conserved in the Stirling Range National Park.

Kunzea acicularis is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with a few erect stems, small and groups of three to five, pink to mauve flowers. It is a rare, recently described species only known from a small area near Ravensthorpe.

Kunzea acuminata is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia where it has a restricted distribution. It is a shrub with a few spindly branches, silky leaves and spherical groups of pink flowers on the ends of the branches.

<i>Kunzea ciliata</i> Species of shrub

Kunzea ciliata is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a spreading shrub which typically grows to a height of 0.8 to 1.5 metres and blooms between October and November producing pink flowers.

Kunzea cincinnata is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area on the south coast of Western Australia. It is a shrub which typically grows to a height of 0.6 to 1 metre and blooms between September and October producing pink to red-purple flowers.

<i>Kunzea clavata</i> Species of flowering plant

Kunzea clavata, commonly known as the Torbay spearwood, is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area on the south coast of Western Australia. It is a shrub or tree, typically with many branches and grows to a height of 2.5 to 4 metres. It blooms between September and October producing yellow flowers.

<i>Kunzea micromera</i> Species of flowering plant

Kunzea micromera is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south west of Western Australia. It is a small, sparse shrub, similar in some respects to K. micrantha but has shorter, more rounded sepal lobes. It produces groups of pink flowers on the ends of a few long shoots in spring.

<i>Kunzea newbeyi</i> Species of flowering plant

Kunzea newbeyi is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area along the south coast of Western Australia. It is a robust shrub with small leaves and groups of about twenty to thirty pink flowers in October and November.

<i>Kunzea rostrata</i> Species of flowering plant

Kunzea rostrata is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to an area along the south west coast of Western Australia. It is a shrub with small, mostly elliptic leaves and with groups of between mostly eleven and fifteen rose pink flowers mainly on the ends of branches that continue to grow after flowering.

<i>Kunzea similis</i> Species of flowering plant

Kunzea similis is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area along the south coast of Western Australia. It is a shrub with linear to lance-shaped leaves with a single vein, and spherical groups of between four and ten pink flowers on the ends of shoots.

<i>Kunzea spathulata</i> Species of flowering plant

Kunzea spathulata is a species of flowering plant in the myrtle family, Myrtaceae and is endemic to a small area in the south west of Western Australia. It is a tall shrub with erect, much-branched stems, linear leaves and more or less spherical groups of yellow or yellowish green flowers.

Kunzea aristulata is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area of New South Wales. It is an erect, spreading shrub similar to Kunzea rupestris but is distinguished from it mainly by the shape of its leaves. It is only known from a remote area north of Yerranderie where it often grows on cliff edges.

<i>Kunzea badjaensis</i> Species of shrub

Kunzea badjaensis is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area of New South Wales. It is a shrub with egg-shaped leaves and clusters of white flowers near the end of the branches. It grows at high altitudes on the Southern Tablelands.

Kunzea caduca is a plant in the myrtle family, Myrtaceae and is endemic to Queensland. It is a spreading shrub with linear to lance-shaped leaves and groups of white to cream-coloured flowers on the ends of all the branches from late winter to early spring. It is only known from a few locations and only conserved in the Castle Tower National Park near Gladstone.

Kunzea dactylota is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area of New South Wales. It is a spreading shrub with small, finger-shaped leaves and clusters of white flowers near the end of the branches. It grows at high altitudes on the Southern Tablelands of the state.

Kunzea juniperoides is a flowering plant in the myrtle family, Myrtaceae and is endemic to a small area of New South Wales. It is a small shrub with narrow leaves and small groups of white flowers near the end of the longer branches. It is distinguished from similar kunzeas by the large number of scale-like perules and bracts surrounding the groups of flowers.

<i>Kunzea occidentalis</i> Species of flowering plant

Kunzea occidentalis is a flowering plant in the myrtle family, Myrtaceae and is endemic to a western New South Wales. It is a shrub with narrow leaves and small groups of white flowers on leafy side-branches. It is distinguished from the similar Kunzea ambigua by the flanges on the sides of its young branches.

Kunzea petrophila is a flowering plant in the myrtle family, Myrtaceae and is endemic to the Northern Territory. It is a spreading shrub with hairy branches and leaves, narrow leaves and cream-coloured flowers in more or less spherical groups usually on the ends of the main branches.

Kunzea sericothrix is a plant in the myrtle family, Myrtaceae and is endemic to Queensland. It is a small shrub with linear to lance-shaped leaves. It is only known from a single collection, and the details of its flowers are provisional.

References

  1. Toelken, Hellmut (1996). "A Revision of the Genus Kunzea (Myrtaceae) I. The Western Australian section Zeanuk". Journal of the Adelaide Botanic Garden. 17: 41–43.
  2. "Kunzea glabrescens". APNI. Retrieved 4 December 2017.
  3. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  4. 1 2 3 "Kunzea glabrescens Common name: Spearwood". Friends of Queens Park Bushland. 2011. Retrieved 27 August 2016.
  5. 1 2 "Kunzea glabrescens". FloraBase . Western Australian Government Department of Parks and Wildlife.