| 词条 | Hakea commutata |
| 释义 |
|image = Hakea commutata.jpg |image_caption = Hakea commutata in the ANBG |genus = Hakea |species = commutata |authority = F.Muell.[1] |range_map = Hakea commutataDistMap25.png |range_map_caption = Occurrence data from Australasian Virtual Herbarium |synonyms = |}} Hakea commutata is a shrub in the Proteaceae family native to Western Australia. A variable species in shape and growing requirements, including mallee heath, sand and along creek lines. DescriptionHakea commutata is a lignotuberous straggly or dense rigid shrub with a rounded habit growing to {{convert|0.5|to|3|m|ft|0}} high. Needle-shaped leaves are {{convert|1|to|3.5|cm|in|2}} long and {{convert|1|to|1.7|mm|in|3}} wide ending in a point {{convert|0.7-1.4|mm|in|sigfig=1|abbr=on}} long. Leaves are bluish-green with a whitish powdery covering, smooth or sparsely covered in coarse rough hairs and small protuberances. The inflorescence have 8-12 flowers either in leaf axils or at the end of branches. The cream-white to yellow perianth is {{convert|3|to|3.5|mm|in|3|abbr=on}} in length and tinged red at the base. The pistil is {{convert|7.5|to|11.5|mm|in|2|abbr=on}} and has an oblique pollen presenter. Red-pink and cream-white flowers appear from September to November, occasionally into December. Woody brown finely wrinkled fruit are obliquely oval shaped {{convert|2|to|3.2|cm|in|2|abbr=on}} long and {{convert|1.1|to|1.7|cm|in|2|abbr=on}} wide. The black to dark brown seeds have a wing down one side and are {{convert|13.5|to|19|mm|in|2|abbr=on}} long. The seed takes a mean time of 23 days to germinate.[2][2][4] TaxonomyHakea commutata was first formally described by botanist Ferdinand von Mueller in 1865 as part of the work Fragmenta Phytographiae Australiae[1]. The only synonym is Hakea nodosa.[3]The specific epithet commutata is a Latin word meaning "with change" Mueller adopted the epithet falsely believing the leaves in this species were variable.[2] DistributionIt is endemic to an area in the Wheatbelt and Goldfields-Esperance regions from about Toodyay in the north to Fitzgerald River National Park in the south west and Cape Arid National Park in the south east. It is found along watercourses and among granite outcrops growing in sandy-loam or clay soils[4] and is usually part of mallee heath communities or mallee communities over laterite.[5] Conservation statusHakea commutata is classified as "not threatened" by the Western Australian GovernmentDepartment of Parks and Wildlife.[4]References1. ^1 {{cite web |title=Hakea commutata |url=https://biodiversity.org.au/nsl/services/search?product=APNI&tree.id=&name=Hakea+commutata&inc._scientific=&inc.scientific=on&inc._cultivar=&inc._other=&max=100&display=apni&search=true |publisher=APNI |accessdate=23 January 2019}} {{Taxonbar|from=Q5640372}}2. ^{{Cite book|title=Australian Seeds: A Guide to Their Collection, Identification and Biology|author1=Luke Sweedman|author2=David J. Merritt|page=210|publisher=CSIRO Publishing|date=2006|isbn=0643092986}} 3. ^{{cite web|url=https://bie.ala.org.au/species/http://id.biodiversity.org.au/node/apni/2907734#names|title=Hakea commutata F.Muell.|accessdate=12 October 2018|work=Atlas of Living Australia|publisher=Global Biodiversity Information Facility}} 4. ^1 2 {{Florabase|title=Hakea commutata|id=2142}} 5. ^1 2 {{cite web|url=http://www.flora.sa.gov.au/efsa/lucid/Hakea/key/Australian%20Hakea%20species/Media/Html/Hakea_commutata.htm|title=Hakea commutata|accessdate=12 October 2018|work=Electronic Flora of South Australia|publisher=Government of South Australia}} 4 : Hakea|Eudicots of Western Australia|Plants described in 1865|Taxa named by Ferdinand von Mueller |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。