| 词条 | Eremophila obovata |
| 释义 |
|image = Eremophila obovata plant.jpg |image_caption = |genus = Eremophila (plant) |species = obovata |authority = L.S.Sm.[1] |synonyms_ref = |synonyms = }} Eremophila obovata is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Australia. It is a low, compact shrub with lilac to purple flowers growing mainly in the Northern Territory and Queensland but also Western Australia, South Australia and New South Wales. DescriptionEremophila obovata is a compact shrub growing to a height of between {{convert|20 and 50|cm|in|sigfig=1|abbr=on}} with many branches arising from ground level. The branches are hairy with a mixture of grey, matted hairs and glandular hairs. The leaves are fan-shaped, spoon-shaped or egg-shaped with the narrower end towards the base, {{convert|4-28|mm|in|sigfig=1|abbr=on}} long, {{convert|2-11|mm|in|sigfig=1|abbr=on}} wide and may be hairy or glabrous.[1][2][3]The flowers are borne singly in leaf axils on a stalk {{convert|3.5-9|mm|in|sigfig=1|abbr=on}} long. There are 5 green, lance-shaped or triangular sepals which are mostly {{convert|5.5-12|mm|in|sigfig=1|abbr=on}} long. The petals are {{convert|16-24|mm|in|sigfig=1|abbr=on}} long and joined at their lower end to form a tube. The petal tube is lilac-coloured or purple on the outside and white with purple spots or streaks inside. The outside of the petal tube and the lobes may be glabrous or hairy but the inside of the lobes is glabrous while the inside of the tube is filled with woolly hairs. The 4 stamens are fully enclosed in the petal tube. Flowering occurs mainly from June to October and is followed by fruits which are oval to almost spherical with a pale yellow, papery covering and are {{convert|6.5-9|mm|in|sigfig=1|abbr=on}} long.[1][2][3] Taxonomy and namingThe species was first formally described in 1956 by Lindsay Stuart Smith and the description was published in Proceedings of the Royal Society of Queensland.[4] The specific epithet (obovata) is derived from the Latin word meaning "ovatus" meaning "egg-shaped"[5]{{rp|580}} with the prefix ob meaning "opposite",[5]{{rp|804}} hence "reverse egg-shaped", referring to the shape of the leaves.[1] There are two subspecies:
Distribution and habitatEremophila obovata is common in the south-east of the Northern Territory and the south-west of Queensland.[1] In Western Australia it occurs between the Gary and Sandy Blight junctions on the Gary Junction Road[2] in the Gibson Desert biogeographic region.[8] In South Australia it only occurs in the extreme north-east of the Lake Eyre botanical region.[3] There is a single record from the far north-west of New South Wales.[1]ConservationThis species is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[8] In the Northern Territory, subspecies obovata is classified as "least concern" but subspecies glabriuscula is "data efficient".[9][10] Use in horticultureThis small, low shrub usually has flowers present on its new growth and subspecies glabriuscula is particular has deep blue flowers and bright green foliage. It can be propagated from cuttings but it is known to sometimes sucker, it which case grafting onto Myoporum rootstock may be preferable. It grows best in well drained soil in a sunny position and although it is drought tolerant, may benefit from an occasional deep watering in a long dry spell and respond with a flush of flowers. It will tolerate light frosts but not areas where there is high humidity.[11] References1. ^1 2 3 4 5 6 {{cite book|last1=Chinnock|first1=R.J. (Bob)|title=Eremophila and allied genera : a monograph of the plant family Myoporaceae|date=2007|publisher=Rosenberg|location=Dural, NSW|isbn=9781877058165|pages=528–531|edition=1st}} {{Taxonbar|from=Q15595410}}2. ^1 2 {{cite book|last1=Brown|first1=Andrew|last2=Buirchell|first2=Bevan|title=A field guide to the eremophilas of Western Australia|date=2011|publisher=Simon Nevill Publications|location=Hamilton Hill, W.A.|isbn=9780980348156|page=193edition=1st}} 3. ^1 2 {{cite web|title=Eremophila obovata|url=http://www.flora.sa.gov.au/cgi-bin/speciesfacts_display.cgi?form=speciesfacts&family=&genus=Eremophila&species=obovata&iname=&submit=Display|publisher=State Herbarium of South Australia: eflora|accessdate=17 February 2016}} 4. ^1 {{cite web|title=Eremophila obovata|url= http://id.biodiversity.org.au/name/apni/114466|publisher=APNI|accessdate=22 February 2016}} 5. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 6. ^{{cite web|title=Eremophila obovata subsp. obovata|url= http://id.biodiversity.org.au/name/apni/169013|publisher=APNI|accessdate=22 February 2016}} 7. ^{{cite web|title=Eremophila obovata subsp. glabriuscula|url= http://id.biodiversity.org.au/name/apni/169014|publisher=APNI|accessdate=22 February 2016}} 8. ^1 {{FloraBase|name=Eremophila obovata|id=31495}} 9. ^{{cite web|title=Eremophila obovata subsp. obovata|url=http://eflora.nt.gov.au/factsheet?id=3699|publisher=Northern Territory Government: flora NT|accessdate=25 December 2016}} 10. ^{{cite web|title=Eremophila obovata subsp. glabriuscula|url=http://eflora.nt.gov.au/factsheet?id=3698|publisher=Northern Territory Government: flora NT|accessdate=25 December 2016}} 11. ^{{cite book|last1=Boschen|first1=Norma|last2=Goods|first2=Maree|last3=Wait|first3=Russell|title=Australia's eremophilas : changing gardens for a changing climate|date=2008|publisher=Bloomings Books|location=Melbourne|isbn=9781876473655|pages=213–214}} 4 : Eremophila (plant)|Flora of South Australia|Flora of the Northern Territory|Plants described in 1956 |
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