| 词条 | Verticordia aurea |
| 释义 |
|status = P4 |status_system = DECF |genus = Verticordia |display_parents = 2 |parent = Verticordia sect. Chrysorhoe |species = aurea |authority = A.S.George[1] }} Verticordia aurea, commonly known as buttercups is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a slender, sometimes bushy shrub with a single stem at the base, cylindrical leaves and heads of scented, golden-yellow flowers in spring. DescriptionVerticordia aurea is a slender, sometimes bushy shrub with a single main stem and which grows to a height of {{convert|0.7-1.2|m|ft|sigfig=1|abbr=on}} and {{convert|15-45|cm|in|sigfig=1|abbr=on}} wide. The leaves are linear in shape, almost circular in cross-section and {{convert|10-30|mm|in|sigfig=1|abbr=on}} long, with those low on the branchlets longer than those nearer the flowers. The leaves have a pointed end.[1]The flowers are scented and arranged in a corymb on the ends of the branches, each flower on a stalk {{convert|10-27|mm|in|sigfig=1|abbr=on}} long. The floral cup is shaped like half a sphere, {{convert|1.5-2|mm|in|sigfig=1|abbr=on}} long, has 10 ribs and a warty surface. The sepals are golden-yellow in colour, {{convert|3.5-4|mm|in|sigfig=2|abbr=on}} long, with 6 to 9 feather-like lobes. The petals are also golden-yellow, {{convert|4-4.5|mm|in|sigfig=2|abbr=on}} long and almost circular in shape with a serrated edge. The style is about {{convert|4|mm|in|sigfig=1|abbr=on}} long, straight and glabrous. Flowering time is from September to December.[1] The species is closely allied to Verticordia nitens and V. patens, the three members of Verticordia sect. Chrysorhoe, from which it is most easily distinguished by its larger, more deeply yellow or golden flowers. Taxonomy and namingVerticordia aurea was first formally described by Alex George in 1991 and the description was published in Nuytsia from specimens collected south of Eneabba.[2][3] The specific epithet (aurea) is derived from the Latin word aurum meaning "gold"[4] referring to the colour of the flowers.[1]George placed this species in Subgenus Chrysoma, Section Chrysorhoe along with V. patens and V. nitens.[3] Distribution and habitatThis verticordia grows in deep sand, usually in association with other verticordias, in heath, shrubland or woodland with Eucalyptus todtiana, Banksia menziesii and Xylomelum angustifolium.[1] It is known from scattered areas between Eneabba, Lake Indoon and the Green Head - Coorow Road, within {{convert|30|km|mi|sigfig=1|abbr=on}} of Eneabba in the Geraldton Sandplains biogeographic region.[5][6] EcologyThe flowers are not attractive to typical insect pollinators, except for a single species of solitary bee Euryglossa aureophila (Colletidae), previously Euhesma aureophila,[7] which feeds on nectar, pollen, and the oil released from the anthers.[8] ConservationVerticordia argentea is classified as "Priority Four" by the Western Australian Government Department of Parks and Wildlife,[5] meaning that is rare or near threatened.[9]Use in horticultureIn cultivation V. aurea is a bushy shrub with colourful flowers, making it an attractive garden plant, but it has proven difficult to grow, except in Western Australia in deep sand in an open sunny location. In other conditions it is susceptible to fungal attack. It can be propagated from cuttings.[1] References1. ^1 2 3 4 {{cite book |author1=Elizabeth A. (Berndt) George |author2=Margaret Pieroni (illustrator) |title= Verticordia: the turner of hearts|edition= 1st |year=2002 |publisher=University of Western Australia Press |location=Crawley, Western Australia |isbn=1-876268-46-8 |pages= 168–169}} {{Taxonbar|from=Q7922882}}2. ^1 {{cite web|title=Verticordia aurea|url= https://biodiversity.org.au/nsl/services/instance/apni/552341|publisher=APNI}} 3. ^1 {{cite journal|last1=George|first1=Alex|title=New taxa, combinations and typifications in Verticordia (Myrtaceae : Chamelaucieae)|journal=Nuytsia|date=1991|volume=7|issue=3|pages=231–394}} 4. ^{{cite book|last1=Moore (ed.)|first1=Bruce|title=The Australian Oxford Dictionary|date=2002|publisher=Oxford University Press|location=South Melbourne, Vic.|isbn=0195507932|page=82|edition=1999}} 5. ^1 {{FloraBase|name=Verticordia aurea|id=12393}} 6. ^{{cite book|last1=Corrick|first1=Margaret G.|last2=Fuhrer|first2=Bruce A.|title=Wildflowers of southern Western Australia|date=2009|publisher=Rosenberg Publishing|location=Kenthurst, N.S.W.|isbn=9781877058844|page=138|edition=3rd}} 7. ^{{cite journal|last1=Houston|first1=Terry F.|title=Three new, monolectic species of Euryglossa (Euhesma) from Western Australia (Hymenoptera: Colletidae)|journal=Records of the Western Australian Museum|date=1992|volume=15|issue=4|pages=719–728}} 8. ^{{cite journal|last1=Houston|first1=TF|last2=Lamont|first2=BB|last3=Radford|first3=S|last4=Errington|first4=SG|title=Apparent mutualism between Verticordia nitens and V. aurea (Myrtaceae) and Their Oil-Ingesting Bee Pollinators (Hymenoptera, Colletidae)|journal=Australian Journal of Botany|date=1993|volume=41|issue=3|pages=369–380|doi=10.1071/BT9930369}} 9. ^{{cite web|title=Conservation codes for Western Australian Flora and Fauna|url=http://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/conservation_code_definitions.pdf|publisher=Government of Western Australia Department of Parks and Wildlife|accessdate=25 May 2016}} 5 : Verticordia|Rosids of Western Australia|Eudicots of Western Australia|Plants described in 1991|Flora of Western Australia |
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