Leionema lachnaeoides explained

Leionema lachnaeoides, is a tall shrub with aromatic leaves and yellow flowers from winter to late spring. It is restricted to the Blue Mountains in New South Wales.

Description

Leionema lachnaeoides is a tall shrub to high with white stems covered in fine, smooth, silver star-shaped hairs quickly becoming smooth. The leaves are more or less terete, long, wide, arranged alternately along the branches on a flattened petiole, with a slight upward curve and ending in a point. The leaf upper and lower side and edges are smooth, surface leathery, margins rolled under almost obscuring the paler underside. The flowers are borne singly on a short peduncle about long in upper leaf axils and covered in soft star-shaped hairs. The pedicel is fleshy and about long with 4 tiny bracts at the base. The green calyx lobes are triangular-shaped, about long and smooth. The spreading, five yellow flower petals are narrowly oval shaped, about long, smooth and dotted with glands. The 5 prominent, yellow stamens only slightly longer than the petals. The dry fruit are rounded with a distinctive long beak and the seed is dispersed on maturity in early summer. Flowering occurs between winter and late spring.[1] [2] [3] [4]

Taxonomy and naming

This species was described in 1825 by Allan Cunningham,[5] [6] but the name was changed to Leionema lachnaeoides in 1998 by Paul G. Wilson and the description was published in the journal Nuytsia.[7] [8] The specific epithet (lachnaeoides) is from the Greek lachne- meaning "soft wool" and -oides meaning "resembling" a reference to the hairiness of the species.[4]

Distribution and habitat

Leionema lachnaeoides grows on rocky outcrops, among heath and scrubland west of Katoomba in the Blue Mountain and from Shipley Plateau, Blackheath.[3] [4]

Conservation status

This species is classified as "endangered" under the Environment Protection and Biodiversity Conservation Act 1999 due to factors including weed invasion, altered drainage and fire regimes.[2]

Notes and References

  1. Web site: Weston . P.H . Harden . G.J . Leionema lachnaeoides . PlantNET-Flora of New South Wales . Royal Botanic Gardens Sydney . 22 May 2020.
  2. Web site: Leionema lachnaeoides . Species Profile & Threats Database . Australian Government, Department of Agriculture, Water and the Environment . 22 May 2020.
  3. Book: Wilson . Paul G. . Flora of Australia-Meliaceae, Rutaceae, Zygophyllaceae . 1999 . ABRS-Commonwealth of Australia Department of Environment & Heritage . Canberra/Melbourne . 9780643109551 . 436.
  4. Book: Fairley . Alan . Seldom Seen-Rare Plants of Greater Sydney . 2004 . Louise Egerton . 1876334991 . 119.
  5. Web site: Phebalium lachnaeoides . Australian Plant Name Index . 22 May 2020.
  6. Phebalium lachnaeoides . Nuytsia . 1970 . 1 . 1 . 103 . 22 May 2020.
  7. Web site: Leionema lachnaeoides . Biodiversity Heritage Library . 22 May 2020.
  8. Web site: Leionema lachnaeoides . Australian Plant Name Index . 22 May 2020.