Yellow cassinia
Cassinia aureonitens in the Royal National Park
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Cassinia
Species:
C. aureonitens
Binomial name
Cassinia aureonitens
Synonyms[1]

Cassinia aureonitens, commonly known as the yellow cassinia[2] is a species of flowering plant in the family Asteraceae and is endemic to eastern New South Wales. It is a shrub with elliptic leaves and heads of yellow flowers arranged in dense corymbs.

Description

Cassinia aureonitens is a shrub that typically grows to a height of 2–3 m (6 ft 7 in – 9 ft 10 in), its branches covered with glandular hairs. The leaves are elliptic, 30–70 mm (1.2–2.8 in) long and 2–5 mm (0.079–0.197 in) wide, dark green on the upper surface and paler below. The flower heads are 1–3 mm (0.039–0.118 in) long and about 1 mm (0.039 in) in diameter, each with five or six yellow florets surrounded by four or five overlapping whorls of involucral bracts. The heads are arranged in a dense corymb up to 120 mm (4.7 in) in diameter. Flowering occurs in spring and summer and the achenes are about 0.5 mm (0.020 in) long with a pappus about 2 mm (0.079 in) long.[2]

Taxonomy

Yellow cassinia was first formally described in 1818 by Robert Brown and given the name Cassinia aurea in the Transactions of the Linnean Society of London,[3][4] but the name was illegitimate because Brown had used the same name in 1813 for a different species now known as Angianthus tomentosus.[5][6][7] In 1951 Norman Arthur Wakefield designated the name Cassinia aureonitens for this species, publishing the new name in The Victorian Naturalist.[8][9]

Distribution and habitat

Cassinia aureonitens grows in heath and woodland on the coast of New South Wales between Taree and Eden and inland to the Central Tablelands.[2]

References

  1. 1 2 "Cassinia aureonitens". Australian Plant Census. Retrieved 10 June 2021.
  2. 1 2 3 "Cassinia aureonitens". Royal Botanic Garden Sydney. Retrieved 10 June 2021.
  3. ↑ "Cassinia aurea". Australian Plant Name Index. 10 June 2021.
  4. ↑ Brown, Robert (1818). "Observations on the natural family of plants called Compositae". Transactions of the Linnean Society of London. 12 (1): 127. Retrieved 10 June 2021.
  5. ↑ "Cassinia aurea". Australian Plant Name Index. 10 June 2021.
  6. ↑ Brown, Robert; Aiton, William (ed.) (1813). Hortus Kewensis. London: Longman, Hurst, Rees, Orme and Brown. p. 185. Retrieved 10 June 2021. {{cite book}}: |first2= has generic name (help)
  7. ↑ "Angianthus tomentosus". Australian Plant Census. Retrieved 10 June 2021.
  8. ↑ "Cassinia aureonitens". Australian Plant Name Index. 10 June 2021.
  9. ↑ Wakefield, Norman A (1951). "Some notes on Cassinia". The Victorian Naturalist. 68 (4): 69. Retrieved 10 June 2021.
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