Biology:Thomasia stelligera

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Short description: Species of shrub

Thomasia stelligera
Thomasia stelligera.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Thomasia
Species:
T. stelligera
Binomial name
Thomasia stelligera
(Turcz.) Benth.[1]

Thomasia stelligera is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is a low, spreading shrub with scattered, narrowly oblong leaves, and racemes of mauve flowers.

Description

Thomasia stelligera is a spreading, spindly shrub that typically grows to 20–60 cm (7.9–23.6 in) high and 30–50 m (98–164 ft) wide, its new growth covered with scaly hairs. The leaves are narrowly oblong, 20–30 mm (0.79–1.18 in) long and 4–6 mm (0.16–0.24 in) wide on a petiole 4–5 mm (0.16–0.20 in) long. The leaves are glabrous on the upper surface, covered with silvery hairs on the lower surface and have wavy edges. The flowers are arranged in racemes of 2 to 4 on a thin peduncle 20–40 mm (0.79–1.57 in) long, each flower on a pedicel 8–10 mm (0.31–0.39 in) long with scaly bracteoles at the base. The flowers are up to 15 mm (0.59 in) in diameter, the sepals mauve and scaly, the petals tiny. Flowering occurs from August to October.[2][3]

Taxonomy and naming

This species was first formally described in 1852 by Nikolai Turczaninow who gave it the name Lasiopetalum stelligerum in the Bulletin de la Société Impériale des Naturalistes de Moscou.[4][5] In 1863, George Bentham transferred the species to the genus Thomasia in Flora Australiensis.[6] The specific epithet (stelligera) means "starry" or "star-bearing".[7]

Distribution and habitat

This thomasia grows in heath and shrubland between the Oldfield River, Jerramungup and Denmark in the Esperance Plains, Jarrah Forest, Mallee and Warren bioregions of south-western Western Australia.[2][3]

Conservation status

Thomasia stelligera is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.[3]

References

  1. "Thomasia stelligera". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/79579. 
  2. 2.0 2.1 Blake, Trevor L. (2021). Lantern bushes of Australia ; Thomasias & allied genera : a field and horticultural guide. Victoria: Australian Plants Society, Keilor Plains Group. pp. 66–67. ISBN 9780646839301. 
  3. 3.0 3.1 3.2 "Thomasia stelligera". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/5101. 
  4. "Lasiopetalum stelligerum". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/506566. 
  5. Turczaninow, Nikolai (1852). "Decas septima generum adhuc non descriptorum adjectis descriptionibus nonnullarum specierum.". Bulletin de la Société Impériale des Naturalistes de Moscou 25 (3): 147–148. https://www.biodiversitylibrary.org/item/181055#page/151/mode/1up. Retrieved 1 March 2023. 
  6. "Thomasia stelligera". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/494994. 
  7. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 313. ISBN 9780958034180. 

Wikidata ☰ Q17580953 entry