Ranunculus lappaceus

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Ranunculus lappaceus
Ranunculus lappaceus.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Ranunculus
Species:
R. lappaceus
Binomial name
Ranunculus lappaceus
Sm.
Synonyms

Ranunculus discolor Steud.

Ranunculus lappaceus, commonly known as the common buttercup, Australian buttercup or Yarrakalgamba, [1] is found across eastern Australia. [2] Like buttercups elsewhere, it is a perennial herb with yellow flowers appearing in spring and summer.

James Edward Smith described it in 1815, and it still bears its original name. [1] It is a member of the large cosmopolitan genus Ranunculus , known as buttercups. The species name is Latin "with burrs". [3]

Ranunculus lappaceus grows as a perennial herb which grows anywhere to 50 cm (20 in) high. The yellow five-petaled flowers are up to 4 cm (1.6 in) wide and appear in spring and summer. [2] The new growth is hairy. [3]

The range is across Eastern Australia, from Queensland, though New South Wales and Victoria and into South Australia, as well as Tasmania. In Western Australia, it is replaced by the similar species R. colonorum , which has recurved sepals. The latter species has been misidentified as R. lappaceus. Heavy moisture-retentive soils are the main habitat. [3] In the Sydney region, R. lappaceus grows on alluvial or clay-based soils on Wianamatta Shale or basalt in open forest, with such trees as mountain blue gum ( Eucalyptus deanei ), ribbon gum ( E. viminalis ), forest red gum ( E. tereticornis ) or prickly paperbark ( Melaleuca styphelioides ). [4] R. lappaceus is found from sea level to an altitude of 1,200 m (3,900 ft), and the annual rainfall of the area it occurs in the Sydney Basin is 700–1,200 mm (28–47 in). [4]

A field study conducted in Beaconsfield Upper found that Ranunculus lappaceus had flowered 78 days earlier in 2006 than it had in 1983, due to some form of change in climate. [5]

Ranunculus lappaceus adapts readily to cultivation in acidic soils in sun or part-shade. It can be grown in rockeries or general bedding. [3]

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References

  1. 1 2 "Ranunculus lappaceus". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government.
  2. 1 2 B. G. Briggs & R. O. Makinson. "New South Wales Flora Online: Ranunculus lappaceus". Royal Botanic Gardens & Domain Trust, Sydney, Australia.
  3. 1 2 3 4 Elliot, Rodger W.; Jones, David L.; Blake, Trevor (2002). Encyclopaedia of Australian Plants Suitable for Cultivation: Vol. 8. Port Melbourne: Lothian Press. p. 183. ISBN   0-7344-0378-X.
  4. 1 2 Benson, Doug; McDougall, Lyn (2000). "Ecology of Sydney Plant Species Part 7b: Dicotyledon families Proteaceae to Rubiaceae" (PDF). Cunninghamia. 6 (4): 1017–1202 [1134].
  5. Keatley, Marie R.; Hudson, Irene Lena. "Shift In Flowering Dates Of Australian Plants Related To Climate: 1983-2006" (PDF). MODSIM 2007 International Congress on Modelling and Simulation. Land, Water and Environmental Management: Integrated Systems for Sustainability Modelling and Simulation Society of Australia and New Zealand: 504–10.