Thomasia macrocarpa

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Thomasia macrocarpa
Thomasia macrocarpa.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Thomasia
T. macrocarpa
Binomial name
Thomasia macrocarpa

Thomasia macrocarpa, commonly known as large-fruited thomasia, [2] is a shrub that is endemic to the southwest of Western Australia.

Botanical name scientific name for a plant (or alga or fungus) (ICNafp)

A botanical name is a formal scientific name conforming to the International Code of Nomenclature for algae, fungi, and plants (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the International Code of Nomenclature for Cultivated Plants (ICNCP). The code of nomenclature covers "all organisms traditionally treated as algae, fungi, or plants, whether fossil or non-fossil, including blue-green algae (Cyanobacteria), chytrids, oomycetes, slime moulds and photosynthetic protists with their taxonomically related non-photosynthetic groups ."

Western Australia State in Australia

Western Australia is a state occupying the entire western third of Australia. It is bounded by the Indian Ocean to the north and west, and the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of 2,529,875 square kilometres, and the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. The state has about 2.6 million inhabitants – around 11 percent of the national total – of whom the vast majority live in the south-west corner, 79 per cent of the population living in the Perth area, leaving the remainder of the state sparsely populated.



Thomasia macrocarpa is a small, spreading shrub growing to about 1.5 m (4 ft 11 in) high and 1 m (3 ft 3 in) wide. The stems are hairy, the grey-green leaves 30–120 mm (1.2–4.7 in) long and 15–70 mm (0.59–2.76 in) wide with finely toothed margins and star-shaped hairs. The leaves are heart to egg-shaped, velvety when young and become smooth as they age. The conspicuous pink to purple flowers are produced between August and November in the species' native range. Occasionally white flowers are seen. The flowers are about 10 mm (0.39 in) in diameter with a perianth consisting of two bracts and the pedicel 7–15 mm (0.28–0.59 in) long. The flower petals are small lobes and the surface is covered in star-shaped hairs. The flowers are followed by capsules containing black seeds which are shed from the plant when ripe. [2] [3]


The perianth is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals). The term perianth is derived from the Greek περί, peri, meaning around, and άνθος, anthos, meaning flower, while perigonium is derived from gonos, meaning seed, i.e. sexual organs. In the mosses and liverworts (Marchantiophyta), the perianth is the sterile tubelike tissue that surrounds the female reproductive structure.

Pedicel (botany) A structure connecting flowers or fruit to the main stem of a plant

A pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as pedicellate.

Taxonomy and naming

Thomasia macrocarpa was first formally described by Austrian botanist Stephan Endlicher in 1839 based on a horticultural specimen and published the description in Novarum Stirpium Decades. [4] [5] The specific epithet is derived from the ancient Greek words makros (μακρός) meaning "long" and karpos (καρπός) meaning "fruit". [6]

Stephan Endlicher Austrian botanist and linguist

Stephan Ladislaus Endlicher also known as Endlicher István László was an Austrian botanist, numismatist and Sinologist. He was a director of the Botanical Garden of Vienna.

Ancient Greek Version of the Greek language used from roughly the 9th century BC to the 6th century AD

The ancient Greek language includes the forms of Greek used in Ancient Greece and the ancient world from around the 9th century BC to the 6th century AD. It is often roughly divided into the Archaic period, Classical period, and Hellenistic period. It is antedated in the second millennium BC by Mycenaean Greek and succeeded by Medieval Greek.

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  1. "Thomasia macrocarpa". Australian Plant Census. Retrieved 17 September 2019.
  2. 1 2 "Thomasia macrocarpa". FloraBase W.A. Department of Biodiversity, Conservation and Attractions W.A. Retrieved 17 September 2019.
  3. Wrigley, John W.; Fagg, Murray (2001). Australian Native Plants. Louise Eggerton-Reed New Holland. ISBN   1-876334-30-4.
  4. "Thomasia macrocarpa". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. Retrieved 12 December 2011.
  5. "Thomasia macrocarpa". Biodiversity Heritage Library. Retrieved 19 October 2019.
  6. Backer, C.A. (1936). Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten (Edition Nicoline van der Sijs).