Leptospermum rupestre

{{Short description|Species of shrub}}

{{speciesbox

|image = Leptospermum sp - Walls of Jerusalem.jpg

|image_caption = Leptospermum rupestre,
Walls of Jerusalem National Park

|genus = Leptospermum

|species = rupestre

|authority = Hook.f.{{cite web |title=Leptospermum rupestre |url=https://biodiversity.org.au/nsl/services/apc-format/display/100599 |website=Australian Plant Census |accessdate=9 November 2019}}

|synonyms =

  • Leptospermum grandifolium var. compactum Miq.
  • Leptospermum scoparium var. microphyllum S.Schauer

|synonyms_ref = {{cite POWO |id=597500-1 |title=Leptospermum rupestre Hook.f. |accessdate=4 January 2024}}

| range_map = Tasmania in Australia.svg

| range_map_caption = Leptospermum rupestre is endemic to Tasmania

}}

Leptospermum rupestre, commonly known as alpine tea-tree or prostrate tea-tree,{{cite web |title=Leptospermum rupestre |url=https://www.olelantanaseeds.com.au/product/leptospermum-rupestre-prostrate-or-alpine-tea-tree-seeds-x-200/ |website=Ole Lantana's Seed Store |accessdate=20 December 2019}} is a flowering shrub in the myrtle family, Myrtaceae. It is endemic to Tasmania. In alpine areas it assumes a prostrate habit while in subalpine areas it appears as a large shrub.

Description

Leptospermum rupestre is a common alpine and subalpine shrub in Tasmania. The growth habit varies, at higher exposed altitudes it is a prostrate plant up to {{cvt|1|m}} high. At lower altitudes it can become a large shrub to {{cvt|4|m}} high. It has small, blunt, shiny dark green, oval to elliptic shaped leaves, {{cvt|2-9|mm}} long. The white flowers are small {{cvt|1|cm}} wide, 5 petalled, with an open habit and flower in profusion in leaf axils during summer. The reddish branches become mat-forming over rocks. The small seed capsules are about {{cvt|5|mm}} in diameter.{{cite book |last1=Wrigley |first1=John W. |last2=Fagg |first2=Murray |title=Australian Native Plants |date=2001 |publisher=Louise Eggerton-Read New Holland |isbn=1-876334-30-4}}{{cite web |title=Leptospermum rupestre |url=https://www.australianplants.com/plants.aspx?id=1491 |website=Australian Native Plants-Online |accessdate=19 December 2019}}{{cite web |url=http://www.utas.edu.au/dicotkey/dicotkey/MYRTS/sLeptospermum_rupestre.htm|title=Leptospermum rupestre (Myrtaceae)|accessdate=10 January 2012 |work= Key to Tasmanian vascular plants|publisher=University of Tasmania}}

Taxonomy and naming

Leptospermum rupestre was first formally described in 1840 by botanist Joseph Dalton Hooker and the description was published in Icones Plantarum.{{cite web |title=Icones Plantarum |url=https://www.biodiversitylibrary.org/item/54439#page/22/mode/1up |website=Biodiversity Heritage Library |accessdate=18 December 2019}}{{cite web |title=Leptospermum rupestre |url=https://biodiversity.org.au/nsl/services/rest/instance/apni/527686 |website=Australian Plant Name Index |accessdate=19 December 2019}} Robert Brown observed it growing on rocky outcrops on Mount Wellington and nearby mountains. The word rupestre is derived from the Latin word rupestris,{{cite book |author=Francis Aubie Sharr |author-link=Francis Aubie Sharr |title=Western Australian Plant Names and their Meanings |date=2019 |publisher=Four Gables Press |location=Kardinya Western Australia |isbn=9780958034180 |page=299}} meaning rocky, referring to the habitat where it was found.

Distribution and habitat

This species is endemic to Tasmania, found growing in a sunny situation on light to medium soils.

Cultivation

It is one of the hardiest species of its genus and is suitable for cultivation outdoors.Dawson, M. (2012). [https://www.rnzih.org.nz/RNZIH_Journal/Pages_14-22_from_2012_Vol15_No2.pdf "Australian Leptospermum in cultivation: species and cultivars."] NZ Garden J, 15, 14-22.

References