Xanthosia eichleri

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Xanthosia eichleri
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: Asterids
Order: Apiales
Family: Apiaceae
Genus: Xanthosia
Species:
X. eichleri
Binomial name
Xanthosia eichleri

Xanthosia eichleri is a species of flowering plant in the family Apiaceae and is endemic to the south of Western Australia. It is an erect, low-lying or prostrate subshrub with wedge-shaped leaves and mostly bisexual, cream-coloured or white flowers.

Contents

Description

Xanthosia eichleri is an erect, low-lying or prostrate subshrub that grows to a height of 5–25 cm (2.0–9.8 in), its leaves wedge-shaped, 5–12 mm (0.20–0.47 in) long and 1–4 mm (0.039–0.157 in) wide on a sheathing petiole. The inflorescence is arranged opposite leaf axils with 2 to 6 umbels on a peduncle 1.0–3.6 mm (0.039–0.142 in) long.The flowers are bisexual, rarely male with 5 green sepals 1.0–1.6 mm (0.039–0.063 in) long. The petals are spatula-shaped, white or cream-coloured 0.7–0.8 mm (0.028–0.031 in) long and shorter than the sepals. Flowering occurs from October to November and the fruit is brown, oval and 1.7–1.9 mm (0.067–0.075 in) long and 1.3–2.0 mm (0.051–0.079 in) wide. [2] [3]

Taxonomy and naming

Xanthosia eichleri was first formally described in 1998 by J.M. Hart and Murray J. Henwood in the journal Nuytsia from specimens collected near Gladstone Falls on the Deep River in 1990. [2] [4] The specific epithet (eichleri) means "belonging to Hansjörg Eichler", "in recognition of his contribution to the taxonomy of Xanthosia and the Australian Apiaceae". [2]

Distribution and habitat

Xanthosia eichleri grows on granite outcrops in woodland, often on roadsides, between Shannon National Park, Sheepwash Creek National Park and the southern coast of Western Australia, in the Esperance Plains, Jarrah Forest and Warren bioregions of south-western Western Australia. [2] [3]

Conservation status

This species of xanthosia listed as "Priority Four" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, [3] meaning that it is rare or near threatened. [5]

Related Research Articles

<i>Xanthosia</i> Genus of shrubs

Xanthosia is a genus of flowering plants in the family Apiaceae and is endemic to Australia. It comprises 20 species of shrubs endemic to Australia. Plants in the genus Xanthosia are perennial herbs or small shrubs, the leaves divided, toothed or lobed,, the flowers white, pinkish or pale green and usually arranged in a compound umbel.

<i>Grevillea coccinea</i> Species of shrub in the family Proteaceae endemic to Western Australia

Grevillea coccinea is a species of flowering plant in the family Proteaceae and is endemic to the south of Western Australia. It is a low-lying or sprawling shrub with narrowly wedge-shaped to linear leaves and white, cream-coloured, and red or yellow flowers.

Boronia thedae, commonly known as the Theda boronia, is a plant in the citrus family, Rutaceae and is endemic to a small area in the Kimberley region of Western Australia. It is an erect shrub when young, later a prostrate shrub with many branches, pinnate leaves, four white to cream-coloured or pale pink sepals and four similarly coloured petals, the sepals longer and wider than the petals.

<i>Commersonia corniculata</i> Species of plant

Commersonia corniculata is a species of flowering plant in the family Malvaceae and is endemic to the southwest of Western Australia. It is an erect to prostrate shrub with 3-lobed, egg-shaped leaves, and white to cream-coloured flowers.

<i>Sphaerolobium rostratum</i> Species of flowering plant

Sphaerolobium rostratum is a species of flowering plant in the family Fabaceae and is endemic to the south of Western Australia. It is an erect to sprawling shrub or subshrub with slender stems, tapering linear leaves and loose racemes of pink and cream-coloured flowers.

Stenanthemum limitatum is a species of flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is an erect or straggling shrub with sparsely hairy young stems, egg-shaped to fan-shaped leaves and greyish, softly-hairy heads of white or cream-coloured flowers.

Cryptandra micrantha is a flowering plant in the family Rhamnaceae and is endemic to the southwest of Western Australia. It is a prostrate or upright shrub with spiny branchlets, narrowly oblong to elliptic leaves and dense clusters of white or cream-coloured, tube-shaped flowers.

<i>Stenanthemum nanum</i> Species of flowering plant

Stenanthemum nanum is a species of flowering plant in the family Rhamnaceae and is endemic to the south-west of Western Australia. It is a prostrate shrub with hairy young stems, broadly egg-shaped leaves with the narrower end towards the base, and densely silvery-hairy heads of white or cream-coloured flowers.

<i>Conostephium magnum</i> Species of flowering plant

Conostephium magnum is a species of flowering plant in the family Ericaceae and is endemic to the south-west of Western Australia. It is an erect, compact shrub with scattered lance-shaped leaves with the narrower end toward the base, and pendulous, spindle-shaped, cream-coloured to white and pink flowers arranged singly in leaf axils.

<i>Cryptandra recurva</i> Species of flowering plant

Cryptandra recurva is a flowering plant in the family Rhamnaceae and is endemic to Western Australia. It is an erect, spreading shrub with densely hairy young stems, narrowly oblong to narrowly egg-shaped leaves and clusters of white, cream-coloured or off-white, tube-shaped flowers.

<i>Styphelia acervata</i> Species of plant

Styphelia acervata is a species of flowering plant in the heath family Ericaceae and is endemic to the south-west of Western Australia. It is a dense, prostrate, mat-forming shrub with erect, narrowly egg-shaped leaves, and cream-coloured and greenish tube-shaped flowers.

<i>Xanthosia ciliata</i> Species of flowering plant

Xanthosia ciliata is a species of flowering plant in the family Apiaceae and is endemic to the south-west of Western Australia. It is a low spreading shrub with linear leaves and yellowish-green to cream-coloured or white flowers.

Xanthosia dissecta, commonly known as cut-leaved xanthosia, is a species of flowering plant in the family Apiaceae and is endemic to south-eastern Australia. It is a prostrate, tufted herb with dissected leaves at the base of the plant, and small white or reddish flowers arranged in one or two umbellules, each with up to 3 flowers.

Xanthosia fruticulosa is an erect, perennial subshrub in the family Apiaceae and is endemic to the south-west of Western Australia. It has trifoliate leaves at the base of the plants and 16 to 40 white or pink flowers in an umbel with all bisexual, or bisexual and male flowers.

<i>Xanthosia kochii</i> Species of flowering plant

Xanthosia kochii is an erect, perennial shrub in the family Apiaceae and is endemic to the south-west of Western Australia. It has trifoliate leaves with wedge-shaped leaflets, white flowers in a compound umbel with 6 to 15 flowers per ray and up to 6 flowers between the rays.

Xanthosia peduncularis is a spreading perennial herb in the family Apiaceae and is endemic to the south of Western Australia. It has trifoliate leaves at the base of the plant and cream-coloured flowers in a compound umbel with 3 or 4 rays.

<i>Xanthosia scopulicola</i> Species of flowering plant

Xanthosia scopulicola is a species of flowering plant in the family Apiaceae and is endemic to a small area of New South Wales. It is an ascending perennial subshrub with trifoliate juvenile leaves, later egg-shaped leaves with wavy edges, and white flowers in a compound umbel with 2 or 3 rays with up to 4 flowers in each ray.

Xanthosia stellata, commonly known as star xanthosia, is a species of flowering plant in the family Apiaceae and is endemic to eastern Australia. It is an erect subshrub with trifoliate leaves with elliptic leaflets, and white flowers in a compound umbel with up to three flowers per ray.

<i>Xanthosia tasmanica</i> Species of flowering plant

Xanthosia tasmanica is a species of flowering plant in the family Apiaceae and is endemic to southern Australia. It is an erect or ascending perennial herb with trifoliate leaves with elliptic leaflets, and white flowers in a compound umbel with one flower per ray and sometimes another flower between the rays.

Swainsona thompsoniana is a species of flowering plant in the family Fabaceae and is endemic to inland northern Western Australia. It is a prostrate annual herb, with imparipinnate leaves with 3 to 6 pairs of narrowly egg-shaped to egg-shaped leaflets with the narrower end towards the base, and racemes of up to 3 mauve and cream-coloured to yellow flowers.

References

  1. "Xanthosia eichleri". Australian Plant Census. Retrieved 3 March 2024.
  2. 1 2 3 4 Hart, J.M.; Henwood, Murray J. (1998). "Xanthosia eichleri, a new species of Apiaceae from Western Australia". Nuytsia. 12 (2): 186–189. doi:10.58828/nuy00294 . Retrieved 3 March 2024.
  3. 1 2 3 "Xanthosia eichleri". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Xanthosia eichleri". APNI. Retrieved 3 March 2024.
  5. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 3 March 2024.