Baeckea gunniana: Difference between revisions
Content deleted Content added
added references |
m Grammar check |
||
| Line 17: | Line 17: | ||
}} |
}} |
||
'''''Baeckea gunniana,''''' commonly known as '''alpine baeckea,''' is a species of compact, densely branched evergreen shrub, growing in alpine and sub-alpine sites<ref name="UTAS" />. ''Baeckea'' leaves are edible and often used as a tea substitute |
'''''Baeckea gunniana,''''' commonly known as '''alpine baeckea,''' is a species of a compact, densely branched evergreen shrub, growing in alpine and sub-alpine sites<ref name="UTAS" />. ''Baeckea'' leaves are edible and often used as a tea substitute because of their aromatic citrus-like flavour<ref name="UTAS">{{Cite web|url=http://www.utas.edu.au/dicotkey/dicotkey/MYRTS/sBaeckea_gunnianus.htm|title=Key to Tasmanian Dicots|publisher=[[University of Tasmania]]|access-date=2017-11-28}}</ref><ref name=":1">{{Cite journal|last=Belcher|first=C.|last2=Leslie|first2=D.|date=January 2011|title=Broad-toothed RatMastacomys fuscusdistribution in Buccleuch, Bago and Maragle State Forests, NSW|url=http://dx.doi.org/10.7882/az.2011.007|journal=Australian Zoologist|volume=35|issue=3|pages=555–559|doi=10.7882/az.2011.007|issn=0067-2238|via=}}</ref>. It also forms an integral part of the [[Broad-toothed mouse]] habitat in NSW, Australia, providing protection from predators and other large grazers<ref name=":1" />. |
||
== Description == |
== Description == |
||
''Baeckea gunniana'' is a smooth, compact shrub growing to 1.5 m high, although can reach up to 2 m at lower altitudes<ref name="ANBG">{{Cite web|url=https://www.anbg.gov.au/gnp/interns-2003/baeckia-gunniana.html|title=Baeckea gunniana - Growing Native Plants|publisher=[[Australian National Botanic Gardens]]|language=en|access-date=2017-11-28}}</ref>. It is sometimes prostrate or spreading over rocks and boulders<ref>{{Cite book|url=http://worldcat.org/oclc/223634887|title=Flora of Victoria. Volume 3, dicotyledons Winteraceae to Myrtaceae|last=Walsh, N. Entwisle, Timothy J.|date=1996|publisher=Inkata|isbn=0-409-30852-8|oclc=223634887}}</ref>. Branchlets are brown with flat segment on a papery or fibrous brown bark<ref name=":0">{{Cite journal|last=Bean|first=Anthony|date=1997-12-17|title=A revision of Baeckea (Myrtaceae) in eastern Australia, Malesia and south-east Asia|url=http://dx.doi.org/10.7751/telopea19971018|journal=Telopea|volume=7|issue=3|pages=245–268|doi=10.7751/telopea19971018|issn=0312-9764}}</ref>. Leaves are small |
''Baeckea gunniana'' is a smooth, compact shrub growing to 1.5 m high, although can reach up to 2 m at lower altitudes<ref name="ANBG">{{Cite web|url=https://www.anbg.gov.au/gnp/interns-2003/baeckia-gunniana.html|title=Baeckea gunniana - Growing Native Plants|publisher=[[Australian National Botanic Gardens]]|language=en|access-date=2017-11-28}}</ref>. It is sometimes prostrate or spreading over rocks and boulders<ref>{{Cite book|url=http://worldcat.org/oclc/223634887|title=Flora of Victoria. Volume 3, dicotyledons Winteraceae to Myrtaceae|last=Walsh, N. Entwisle, Timothy J.|date=1996|publisher=Inkata|isbn=0-409-30852-8|oclc=223634887}}</ref>. Branchlets are brown with a flat segment on a papery or fibrous brown bark<ref name=":0">{{Cite journal|last=Bean|first=Anthony|date=1997-12-17|title=A revision of Baeckea (Myrtaceae) in eastern Australia, Malesia and south-east Asia|url=http://dx.doi.org/10.7751/telopea19971018|journal=Telopea|volume=7|issue=3|pages=245–268|doi=10.7751/telopea19971018|issn=0312-9764}}</ref>. Leaves are small (2-4 mm long; 0.6-0.8 mm wide) and crowded, obovate to oblong shaped with a blunt apex<ref name="ANBG" />, and with entire margins and petioles c. 0.5 mm long<ref name=":0" />. The flowers are white, small and numerous, borne solitary in the upper leaf axils <ref name=":2" />. Sepals are triangular and obtuse, with a corolla 4–5 mm in diameter and circular petals c. 1–1.8 mm long. Stamens 4–6, not opposite petals. The ovary has a single locule. Style is terete and only slightly inserted into the ovary summit<ref name="ANBG" />. The unilocular ovary, where the pendulous placenta and ovules are enclosed by a single membrane, is characteristic to the species and unique in the genus<ref name=":0" />. |
||
| ⚫ | The fruit is green and cup-like when immature<ref name=":2">{{Cite web|url=https://vicflora.rbg.vic.gov.au/flora/taxon/a7139372-abf0-45ed-be76-7aada92c439d|title=Flora of Victoria|website=vicflora.rbg.vic.gov.au|access-date=2019-12-04}}</ref> and woody, dehiscent capsule at maturity<ref name="ANBG" />. Seeds are small and angular, remaining inconspicuous on the ground upon release<ref name="ANBG" /><ref name=":2" />. Seed coat/covering or testa of some ''Baeckea'' species has been recorded to form a physical barrier inhibiting seed germination<ref name="ANBG" />. This may be reverted by removing or nicking the testa using a needle or scalpel, improving the rate of germination<ref name="ANBG" />. ''Baeckea gunniana'' can also be vegetatively propagated from cuttings of semi-hardened new growth. |
||
The flowers are white, small with 4-5 mm diameter and numerous, borne solitary in the upper leaf axils <ref name=":2" />. Sepals are triangular and obtuse, with a corolla 4–5 mm in diameter and circular petals c. 1–1.8 mm long. Stamens 4–6, not opposite petals. Ovary has a single locule. Style is terete and only slightly inserted into ovary summit<ref name="ANBG" />. A unilocular ovary, where the pendulous placenta and ovules are enclosed by single membrane, is characteristic to the species and unique in the genus<ref name=":0" />. |
|||
| ⚫ | |||
== Distribution and Habitat == |
== Distribution and Habitat == |
||
Distribution is confined to alpine or |
Distribution is confined to alpine or subalpine regions, from Mt Ginini in ACT to south-west Tasmania<ref name="ANBG" /><ref name=":0" />. ''Baeckea gunniana'' is most prevalent at high altitudes between 1000 to 1400 m. However, it has been observed to grow above 2000 m near Mt Kosciusko, and as low as 450 m in western Tasmania<ref name=":0" />. It is commonly found growing with species such as [[Melaleuca pityoides|''Callistemon pityoides'']], [[Epacris paludosa|''Epacris paludosa'']], and [[Empodisma minus|''Empodisma minus'']], in heathlands or boggy sedgeland<ref name=":0" />. It is also common near creeks, and sometimes in shaded areas under ''[[Eucalyptus]]'' spp<ref name="ANBG" />. [[File:Baec gunn.jpg|thumb|White ''Myrtaceae'' flowers of ''Baeckea gunniana'' Photo © Greg Jordan. © 2019 University of Tasmania |alt=]] |
||
==References== |
==References== |
||
Revision as of 04:05, 4 December 2019
| Baeckea gunniana | |
|---|---|
| |
| Baeckea gunniana Photo © Greg Jordan. © 2019 University of Tasmania | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Baeckea |
| Species: | B. gunniana
|
| Binomial name | |
| Baeckea gunniana Schauer ex Walp.
| |
| |
| Occurrence distribution of Baeckea gunniana Atlas of Living Australia, Map data © OpenStreetMap, imagery © CartoDB | |
Baeckea gunniana, commonly known as alpine baeckea, is a species of a compact, densely branched evergreen shrub, growing in alpine and sub-alpine sites[1]. Baeckea leaves are edible and often used as a tea substitute because of their aromatic citrus-like flavour[1][2]. It also forms an integral part of the Broad-toothed mouse habitat in NSW, Australia, providing protection from predators and other large grazers[2].
Description
Baeckea gunniana is a smooth, compact shrub growing to 1.5 m high, although can reach up to 2 m at lower altitudes[3]. It is sometimes prostrate or spreading over rocks and boulders[4]. Branchlets are brown with a flat segment on a papery or fibrous brown bark[5]. Leaves are small (2-4 mm long; 0.6-0.8 mm wide) and crowded, obovate to oblong shaped with a blunt apex[3], and with entire margins and petioles c. 0.5 mm long[5]. The flowers are white, small and numerous, borne solitary in the upper leaf axils [6]. Sepals are triangular and obtuse, with a corolla 4–5 mm in diameter and circular petals c. 1–1.8 mm long. Stamens 4–6, not opposite petals. The ovary has a single locule. Style is terete and only slightly inserted into the ovary summit[3]. The unilocular ovary, where the pendulous placenta and ovules are enclosed by a single membrane, is characteristic to the species and unique in the genus[5].
The fruit is green and cup-like when immature[6] and woody, dehiscent capsule at maturity[3]. Seeds are small and angular, remaining inconspicuous on the ground upon release[3][6]. Seed coat/covering or testa of some Baeckea species has been recorded to form a physical barrier inhibiting seed germination[3]. This may be reverted by removing or nicking the testa using a needle or scalpel, improving the rate of germination[3]. Baeckea gunniana can also be vegetatively propagated from cuttings of semi-hardened new growth.
Distribution and Habitat
Distribution is confined to alpine or subalpine regions, from Mt Ginini in ACT to south-west Tasmania[3][5]. Baeckea gunniana is most prevalent at high altitudes between 1000 to 1400 m. However, it has been observed to grow above 2000 m near Mt Kosciusko, and as low as 450 m in western Tasmania[5]. It is commonly found growing with species such as Callistemon pityoides, Epacris paludosa, and Empodisma minus, in heathlands or boggy sedgeland[5]. It is also common near creeks, and sometimes in shaded areas under Eucalyptus spp[3].
References
- ^ a b "Key to Tasmanian Dicots". University of Tasmania. Retrieved 28 November 2017.
- ^ a b Belcher, C.; Leslie, D. (January 2011). "Broad-toothed RatMastacomys fuscusdistribution in Buccleuch, Bago and Maragle State Forests, NSW". Australian Zoologist. 35 (3): 555–559. doi:10.7882/az.2011.007. ISSN 0067-2238.
- ^ a b c d e f g h i "Baeckea gunniana - Growing Native Plants". Australian National Botanic Gardens. Retrieved 28 November 2017.
- ^ Walsh, N. Entwisle, Timothy J. (1996). Flora of Victoria. Volume 3, dicotyledons Winteraceae to Myrtaceae. Inkata. ISBN 0-409-30852-8. OCLC 223634887.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ a b c d e f Bean, Anthony (17 December 1997). "A revision of Baeckea (Myrtaceae) in eastern Australia, Malesia and south-east Asia". Telopea. 7 (3): 245–268. doi:10.7751/telopea19971018. ISSN 0312-9764.
- ^ a b c "Flora of Victoria". vicflora.rbg.vic.gov.au. Retrieved 4 December 2019.
 | This Australian plant article is a stub. You can help Wikipedia by expanding it. |