Biology:Spyridium cinereum

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Short description: Species of shrub

Spyridium cinereum
Spyridium cinereum.jpg
In the Australian National Botanic Gardens
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rhamnaceae
Genus: Spyridium
Species:
S. cinereum
Binomial name
Spyridium cinereum
N.A.Wakef.[1]

Spyridium cinereum, commonly known as tiny spiridium,[2] is a species of flowering plant in the family Rhamnaceae and is endemic to south-eastern continental Australia. It is a low-lying shrub with heart-shaped leaves, the narrower end towards the base, and heads of whitish, shaggy-hairy flowers with brown bracts at the base of the heads.

Description

Spyridium cinereum is a low-lying shrub or subshrub that typically grows to a height of 10–50 cm (3.9–19.7 in). The leaves are heart-shaped with the narrower end towards the base, 4–8 mm (0.16–0.31 in) long and 3–5 mm (0.12–0.20 in) wide with a small point in the centre of the notch. Both surfaces of the leaves are woolly-hairy, especially the upper surface, and the edges of the leaves are rolled under. The heads of flowers are arranged on the ends of branches, each with a leaf and several brown bracts at the base, the head in flattish umbels about 10 mm (0.39 in) in diameter. The sepals are about 1 mm (0.039 in) long, the petals whitish, 2–3 mm (0.079–0.118 in) long and shaggy-hairy on the outside. Flowering occurs from October to January and the fruit is a capsule about 2.5 mm (0.098 in) long.[2][3][4]

Taxonomy

Spyridium cinereum was first formally described in 1957 by Norman Arthur Wakefield in The Victorian Naturalist of specimens he collected near Mallacoota aerodrome.[4][5] The specific epithet (cinereum) means "ash-coloured".[6]

Distribution

Spyridium cinereum grows in coastal heath and low scrub in disjunct populations near Nadgee in the far south-east of New South Wales, far north-eastern Victoria and in the north-east Grampians.[2][3]

References

  1. "Spyridium cinereum". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/115717. 
  2. 2.0 2.1 2.2 Walsh, Neville G.. "Spyridium cinereum". Royal Botanic Gardens Victoria. https://vicflora.rbg.vic.gov.au/flora/taxon/20540cba-3ffc-4aaa-8c5b-33b48b2590f5. 
  3. 3.0 3.1 Harden, Gwen J.. "Spyridium cinereum". Royal Botanic Garden Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Spyridium~cinereum. 
  4. 4.0 4.1 Wakefield, Norman A. (1957). "Flora of Victoria: new species and other additions - 11.". The Victorian Naturalist 73 (10): 165 – 166. https://www.biodiversitylibrary.org/item/127327#page/167/mode/1up. Retrieved 3 July 2022. 
  5. "Spyridium cinereum". APNI. https://id.biodiversity.org.au/instance/apni/550376. 
  6. Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 164. ISBN 9780958034180. 

Wikidata ☰ Q17241640 entry