Eucalyptus synandra

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Jingymia mallee
E. synandra capsules and blossom

Declared rare (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. synandra
Binomial name
Eucalyptus synandra

Eucalyptus synandra, commonly known as Jingymia mallee, is a mallee that is native to Western Australia.[1]

Description

The mallee typically grows to a height of 3.5 to 10 metres (11 to 33 ft) with a width of 3 to 7 metres (10 to 23 ft) and has smooth, shedding bark and an erect to weeping habit. Usually the tree will form multiple stems from a lignotuber at the base of the trunks it also has a light open canopy that allows some light through.[2] It blooms between August and March producing inflorescences with pink-cream flowers[1] and a distinctive red capsule.[3] The juvenile leaves are dull and grey-green in colour. They are quite narrow around 90 millimetres (4 in) in length and with a width of 15 mm (0.59 in).[4] The tree has dull green linear leaves that are about 200 mm (8 in) in length[3] and 16 mm (0.63 in) wide.[4] The simple inflorescences are held in the leaf axils and contain to seven flowers. Stalked buds form with hemispherical floral tubes, with a conical to beaked shaped bright red cap. The lower half of the stamens merge into a single tube. The creamy coloured flowers tend to turn pink as they age. After flowering hemispherical stalked fruits form which have a thick rim, an ascending disc and up to five exserted valves that are 6 to 14 mm (0.24 to 0.55 in) in length.[4]

Taxonomy

The species was first formally described by the botanist M.D.Crisp in 1982 as part of the work Eucalyptus synandra (Myrtaceae), a new species of mallee from Western Australia published in the journal Nuytsia.[5] The type specimen was collected in 1981 by Alexander Segger George about 5 kilometres (3.1 mi) south of Jingymia in the Shire of Koorda.[6]

The species name synandra is latin in origin meaning with fused male parts[7] which refers to the plants flowers where the stamens are joined for a portion of their length.[8]

Distribution

It is found as several small populations[8] on sandplains and rises in an area between Geraldton and Mount Marshall in the Mid West, Wheatbelt regions where it grows in sandy and gravelly lateritic soils.[1] The 27 separate populations of the species, containing about 1200 individual plants are scattered over a 300 kilometres (186 mi) length mostly between north of Morawa to around Koorda. They are mostly found on road verges but also on private land, conservation areas, pastoral leases and a timber reserve.[4]

Usually found among heath and scrub communities. Associated species include Eucalyptus leptopoda, E. erwartiana, E. loxophleba subsp. supralaevis, E. subangusta, E. brachycorys, Acacia coolgardiensis, A. acuaria and Hakea recurva.[4]

Cultivation

Although the tree is not commonly cultivated,[8] it is commercially available in seed form or as seedlings. The drought tolerant plant[3] grows in full sun and attracts bids such as honeyeaters to the garden.[9]

See also

References

  1. ^ a b c "Eucalyptus synandra". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  2. ^ "Fact Sheet: Gorgeous Gums". Gardening Australia. Australian Broadcasting Corporation. 11 July 2015. Retrieved 16 December 2017.
  3. ^ a b c "Eucalyptus synandra 'Jingymia Mallee'". Ellenby Tree Farm. Retrieved 16 December 2017.
  4. ^ a b c d e "ThreatenedSpecies of the Week: Eucalyptus synandra (Jingymia Mallee)". Northern Agricultural Catchments Council. Retrieved 16 December 2017.
  5. ^ "Eucalyptus synandra Crisp". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 16 December 2017.
  6. ^ "Eucalyptus synandra". Eucalink. Royal Botanic Garden, Sydney. Retrieved 16 December 2017.
  7. ^ "Neesia synandra Mast. in Hook.f., Fl. Brit. Ind. 1 (1874)". Asian Plants. Retrieved 16 December 2017.
  8. ^ a b c "Eucalyptus synandra". Australian Native Plants Society. Retrieved 16 December 2017.
  9. ^ "Eucalyptus synandra Jingymia mallee". Lullfitz Nursery. Retrieved 16 December 2017.