Lasiopetalum oldfieldii

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Lasiopetalum oldfieldii
Near
Eneabba

Priority Three — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Lasiopetalum
Species:
L. oldfieldii
Binomial name
Lasiopetalum oldfieldii
F.Muell.[1]
Synonyms[1]

Lasiopetalum acutiflorum var. oldfieldii (F.Muell.) Bentham

Lasiopetalum oldfieldii is a species of flowering plant in the family

endemic
to the south-west of Western Australia. It is a low, spreading shrub with rusty-hairy young stems, egg-shaped to narrowly egg-shaped leaves and pink and dark red flowers.

Description

Lasiopetalum oldfieldii is a spreading shrub that typically grows to a height of 0.3–1.5 m (1 ft 0 in – 4 ft 11 in), its stems covered with white or rust-coloured, star-shaped hairs when young. The leaves are arranged alternately along the stems, egg-shaped to narrowly egg-shaped, 15–52 mm (0.59–2.05 in) long and 8–21 mm (0.31–0.83 in) wide on a petiole 5–17 mm (0.20–0.67 in) long. The lower surface of the leaves is densely covered with white and rust-coloured, star-shaped hairs. The flowers are borne in loose groups of 16 to 18, 21–53 mm (0.83–2.09 in) long, each group on a hairy peduncle 13–26 mm (0.51–1.02 in) long, each flower on a pedicel 0.8–2.3 mm (0.031–0.091 in) long with narrowly egg-shaped bracts 1–5 mm (0.039–0.197 in) long at the base and three bracteoles 3.1–9.5 mm (0.12–0.37 in) long below the base of the sepals. The sepals are pink, sometimes with a green base, the lobes 3.3–4.9 mm (0.13–0.19 in) long, white and hairy on the back. The petals are 0.7–1 mm (0.028–0.039 in) long and dark red, the anthers dark red and 2.0–2.8 mm (0.079–0.110 in) long on filaments 0.8–1.4 mm (0.031–0.055 in) long. Flowering occurs from August to November.[2][3]

Taxonomy

Lasiopetalum oldfieldii was first formally described in 1860 by

Augustus Oldfield.[3][4][5] The specific epithet (oldieldii) honours Oldfield.[6]

Distribution and habitat

This lasiopetalum grows in open

Mullewa in the Geraldton Sandplains biogeographic region of south-western Western Australia.[2][3]

Conservation status

Lasiopetalum oldfieldii is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions,[2] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[7]

References

  1. ^ a b "Lasiopetalum oldfieldii". Australian Plant Census. Retrieved 29 March 2022.
  2. ^
    Department of Biodiversity, Conservation and Attractions
    .
  3. ^ a b c Shepherd, Kelly A.; Wilkins, Carolyn F. (2021). "A revision of Lasiopetalum (Malvaceae: Byttnerioideae) from the northern sandplains of Western Australia, including two new species" (PDF). Nuytsia. 32: 143–146. Retrieved 29 March 2022.
  4. ^ "Lasiopetalum oldfieldii". APNI. Retrieved 29 March 2022.
  5. ^ von Mueller, Ferdinand (1860). Fragmenta Phytographiae Australiae. Vol. 2. Melbourne: Victorian Government Printer. p. 6. Retrieved 29 March 2022.
  6. ISBN 9780958034180
    .
  7. ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 29 March 2022.
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