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词条 Eremophila phyllopoda
释义

  1. Description

  2. Taxonomy and naming

  3. Distribution and habitat

  4. Conservation

  5. Use in horticulture

  6. References

{{use Australian English|date=February 2016}}{{Use dmy dates|date= February 2016}}{{Speciesbox
|image = Eremophila phyllopoda obliqua (leaves and flowers).jpg
|image_caption = Eremophila phyllopda subsp. obliqua leaves and flowers
|genus = Eremophila (plant)
|species = phyllopoda
|authority = Chinnock[1]
}}

Eremophila phyllopoda is a flowering plant in the figwort family, Scrophulariaceae and is endemic to Western Australia. It is an erect or spreading shrub, sometimes round or flat-topped with sticky, hairy leaves and flowers ranging in colour from pink or lilac to purple.

Description

Eremophila phyllopoda is a compact, flat-topped shrub or a spreading shrub depending on subspecies, and grows to a height of between {{convert|0.4 and 2|m|ft|sigfig=1|abbr=on}}. Its branches and leaves are covered with a layer of silvery to dull grey simple hairs that are sometimes stained brown. The branches are rough due to the prominent, projecting leaf bases and sticky due to the presence of resin. The leaves are arranged alternately and clustered near the ends of the branches. They are linear to elliptic in shape, taper towards both ends, {{convert|18-110|mm|in|sigfig=1|abbr=on}} long, {{convert|1.5-7|mm|in|sigfig=1|abbr=on}} wide, have a covering of hairs which are pressed against the leaf surface and sometimes obscured by resin.[1][2]

The flowers are borne singly or in pairs in leaf axils on a stalk {{convert|1.5-4.5|mm|in|sigfig=1|abbr=on}} long which is densely hairy. There are 5 overlapping, green to pale mauve, hairy, sticky, lance-shaped to egg-shaped, sepals which are {{convert|8.5-25|mm|in|sigfig=1|abbr=on}} long. The petals are {{convert|13.5-32|mm|in|sigfig=1|abbr=on}} long and are joined at their lower end to form a tube. The petal tube is white through pink to deep lilac-coloured or purple on the outside, white inside. The petal tube and lobes are hairy on the outside, the petal lobes are glabrous on the inside, and the inside of the tube is filled with woolly hairs. The 4 stamens are fully enclosed in the petal tube. Flowering time depends on subspecies. The fruits are dry, oval to cone-shaped, {{convert|2.5-4|mm|in|sigfig=1|abbr=on}} long and have a hairy, papery covering.[1][2]

Taxonomy and naming

The species was first formally described by Robert Chinnock in 2007 and the description was published in Eremophila and Allied Genera: A Monograph of the Plant Family Myoporaceae.[3] The specific epithet (phyllopoda) is derived from the Ancient Greek φύλλον (phúllon) meaning “leaf”[4]{{rp|466}} and πούς (poús) meaning “foot”[4]{{rp|343}} in reference to the prominent and persistent leaf bases on the stems of this species.[1]

There are two subspecies

  • Eremophila phyllopoda Chinnock subsp. phyllopoda[5] which flowers from June to October and has leaves that are {{convert|60-110|mm|in|sigfig=1|abbr=on}} long and petals more than {{convert|24|mm|in|sigfig=1|abbr=on}} long;[2]
  • Eremophila phyllopoda subsp. obliqua Chinnock[6] which flowers from June to August and has leaves that are {{convert|18-50|mm|in|sigfig=1|abbr=on}} long and petals that are less than {{convert|25|mm|in|sigfig=1|abbr=on}} long;[2]

Distribution and habitat

Subspecies phyllopoda occurs stony plains and rocky ridges from west of Mt Augustus to Meekatharra[2] in the Carnarvon, Gascoyne, Little Sandy Desert, Murchison and Pilbara biogeographic regions.[7] Subspecies obliqua is found in stony soils near creek beds and on rocky hills between the Collier and Barlee ranges in the Gascoyne and Pilbara biogeographic regions.[8]

Conservation

Both subspecies of E.phyllopoda are classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[9]

Use in horticulture

This is one of the most attractive eremophilas with its grey, pendulous leaves and mass display of lilac to blue or pink flowers. Its colourful sepals remain on the plant long after the petal tube has fallen and it is an ideal container plant. It is usually propagated by grafting onto Myoporum rootstock and grown in well-drained soil in full sun. It only needs occasional watering during a long drought but it is frost sensitive and needs to be grown in a warm, protected position.[10]

References

1. ^{{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=334–337|edition=1st}}
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|pages=210–211|edition=1st}}
3. ^{{cite web|title=Eremophila phyllopoda|url= http://id.biodiversity.org.au/name/apni/207567|publisher=APNI|accessdate=27 February 2016}}
4. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}}
5. ^{{cite web|title=Eremophila phyllopoda subsp. phyllopoda|url= http://id.biodiversity.org.au/name/apni/207568|publisher=APNI|accessdate=27 February 2016}}
6. ^{{cite web|title=Eremophila phyllopodasubsp. obliqua|url= http://id.biodiversity.org.au/name/apni/207569|publisher=APNI|accessdate=27 February 2016}}
7. ^{{FloraBase|name=Eremophila phyllopoda subsp. phyllopoda|id=17167}}
8. ^{{FloraBase|name=Eremophila phyllopoda subsp. densa|id=17283}}
9. ^{{FloraBase|name=Eremophila phyllopoda|id=17282}}
10. ^{{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=141–143}}
{{Taxonbar|from=Q15597792}}

5 : Eudicots of Western Australia|Eremophila (plant)|Flora of Western Australia|Endemic flora of Western Australia|Plants described in 2007

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