| 词条 | Eremaea asterocarpa |
| 释义 |
|image = Eremaea asterocarpa gnangarra.jpg |image_caption = Eremaea asterocarpa growing in the Perth suburb of Southern River |genus = Eremaea (plant) |species = asterocarpa |authority = Hnatiuk |synonyms = Melaleuca asterocarpa (Hnatiuk) Craven & R.D.Edwards }} Eremaea asterocarpa, commonly known as rusty Eremaea, is a plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with broad, flat leaves, and orange-coloured flowers in late winter or spring. Single flowers appear on the ends of branches formed the previous year. DescriptionEremaea asterocarpa is a shrub, growing to a height of {{convert|1.3|m|ft|sigfig=1}}. It has a variable form, sometimes low and spreading, others erect or short and twisted. The leaves are {{convert|3.4-8.3|mm|in|sigfig=1}} long, {{convert|1.0-4.5|mm|in|sigfig=1}} wide, elliptic or egg-shaped with the narrower end towards the base and have between 5 and 7 veins visible on the lower surface.[1]The flowers are orange-coloured, on the ends of the previous year's wood and occur singly or rarely, two together. There are 5 sepals which are densely hairy on the outside surface and 5 petals {{convert|4-6|mm|in|sigfig=2}} long. The stamens, which give the flower its colour, are arranged in 5 bundles, each containing 16 to 36 stamens. Flowering occurs from July to November and is followed by fruits which are woody capsules. The capsules are {{convert|6.9-8|mm|in|sigfig=2}} long, more or less cup-shaped, rough and lumpy with the remains of the sepals giving a star-like appearance to the end.[1] It can be distinguished from other eremaeas by the rough fruits and the presence of 5 or more veins on the leaves. Taxonomy and namingEremaea asterocarpa was first formally described in 1993 by Roger Hnatiuk in Nuytsia.[1][2] The specific epithet (asterocarpa) is from the Ancient Greek ἀστήρ (astḗr) meaning "a star"[3]{{rp|748}} and καρπός (karpós) meaning "fruit"[3]{{rp|356}} > referring to the star-like pattern on the end of the fruit.[1]There are three subspecies of Eremaea asterocarpa:
Distribution and habitatEremaea asterocarpa is found in near-coastal areas of the south-west in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain biogeographic regions.[7] It grows in sand over laterite.[8]ConservationEremaea asterocarpa is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]References1. ^1 2 3 {{cite journal|last1=Hnatiuk|first1=Roger J.|title=A revision of the genus Eremaea (Myrtaceae)|journal=Nuytsia|date=1998|volume=9|issue=2|pages=208–218|url=https://florabase.dpaw.wa.gov.au/science/nuytsia/202.pdf|accessdate=8 August 2015}} 2. ^{{cite web|title=Eremaea asterocarpa|url=https://biodiversity.org.au/boa/instance/apni/568351|publisher=APNI|accessdate=8 August 2015}} 3. ^1 {{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.}} 4. ^{{FloraBase|name=Eremaea.asterocarpa subsp asterocarpa|id = 13950}} 5. ^{{FloraBase|name=Eremaea.asterocarpa subsp histoclada|id = 14097}} 6. ^{{FloraBase|name=Eremaea.asterocarpa subsp brachyclada|id = 13952}} 7. ^1 {{cite web|title=Eremaea asterocarpa |url=https://florabase.dpaw.wa.gov.au/browse/profile/13949|publisher=FloraBase|accessdate=9 August 2015}} 8. ^{{cite book|last1=Paczkowska|first1=Grazyna|last2=Chapman|first2=Alex R.|title=The Western Australian flora : a descriptive catalogue|date=2000|publisher=Wildflower Society of Western Australia|location=Perth|isbn=0646402439|page=362}} External links{{Commonscat-inline}}{{Taxonbar|from=Q15396688}} 5 : Eremaea (plant)|Myrtales of Australia|Flora of Western Australia|Plants described in 1993|Endemic flora of Western Australia |
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