''Commersonia parviflora'', commonly known as small flowered rulingia, is a species of flowering plant in the family Malvaceae and is endemic to the south of Western Australia. It is a low, prostrate or dense shrub with wrinkled, egg-shaped leaves with rounded teeth on the edges, and clusters of small, white flowers.

Description

''Commersonia parviflora'' is a low, prostrate or dense shrub that typically grows to high and wide, its new stems hairy. The leaves are egg-shaped and wrinkled, long and wide on a petiole long with stipules long at the base. The edges of the leaves have irregular, rounded lobes with the edges rolled under, the upper surface has prominent veins and the lower surface is densely covered with star-shaped hairs. The flowers are arranged in clusters of 2 to 11 on a

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, each flower on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. The flowers are wide with five white, petal-like sepals that are hairy on the back. The petals have a linear

ligule A ligule (from "strap", variant of ''lingula'', from ''lingua'' "tongue") is a thin outgrowth at the junction of leaf and leafstalk of many grasses (Poaceae) and sedges. A ligule is also a strap-shaped extension of the corolla, such as that of a ...

half as long as the sepals, and there is a single hairy

staminode In botany, a staminode is an often rudimentary, sterile or abortive stamen, which means that it does not produce pollen.Jackson, Benjamin, Daydon; ''A Glossary of Botanic Terms with their Derivation and Accent''; Published by Gerald Duckworth & Co. ...

between each pair of

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s. Flowering occurs from July to November and the fruit is a hairy capsule in diameter.

Taxonomy

This species was first formally described in 1837 by

Stephan Endlicher Stephan Ladislaus Endlicher also known as Endlicher István László (24 June 1804, Bratislava (Pozsony) – 28 March 1849, Vienna) was an Austrian botanist, numismatist and Sinologist. He was a director of the Botanical Garden of Vienna. Bio ...

who gave it the name ''Rulingia parviflora'' in '' Enumeratio plantarum quas in Novae Hollandiae ora austro-occidentali ad fluvium Cygnorum et in sinu Regis Georgii collegit Carolus Liber Baro de Hügel'' from specimens collected from King George Sound by

Charles von Hügel Charles von Hügel (born Carl Alexander Anselm Baron von Hügel; 25 April 1795 – 2 June 1870), sometimes spelt in English Huegel, was an Austrian nobleman, army officer, diplomat, botanist, and explorer, now primarily remembered for his tra ...

. In 1882

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Vict ...

transferred the species to the genus, '' Commersonia'' as ''C. parviflora''. 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 ...

(''parviflora'') means "small-flowered".

Distribution and habitat

''Commersonia parviflora'' grows in heath, scrub and woodland between Darkan, Albany and Esperance in the Esperance Plains, Jarrah Forest, Mallee and

Warren A warren is a network of wild rodent or lagomorph, typically rabbit burrows. Domestic warrens are artificial, enclosed establishment of animal husbandry dedicated to the raising of rabbits for meat and fur. The term evolved from the medieval Angl ...

bioregions of southern Western Australia.

References

{{Taxonbar, from=Q17579757 parviflora Flora of Western Australia Plants described in 1837 Taxa named by Stephan Endlicher