| 词条 | Melaleuca thymoides |
| 释义 |
|image = Melaleuca thymoides (leaves, flowers, fruits).JPG |image_caption = M. thymoides leaves, flowers and fruit |genus = Melaleuca |species = thymoides |authority = Labill.[1] }} Melaleuca thymoides is a plant in the myrtle family, Myrtaceae, and is endemic to the south-west of Western Australia. It is usually a low shrub. The ends of the branches usually end in a sharp spine and the leaves also have a sharp point. Bright yellow flowers appear on the ends of the branches in spring or early summer. DescriptionMelaleuca thymoides is a spreading shrub usually no more than {{convert|1|m|ft|sigfig=1|abbr=on}} tall and wide, although sometimes it is up to {{convert|3|m|ft|sigfig=1|abbr=on}} tall, with the branchlets usually ending in a sharp spine. The leaves are arranged alternately along the stem, {{convert|2.4-13.8|mm|in|sigfig=1|abbr=on}} long, {{convert|0.7-3.6|mm|in|sigfig=1|abbr=on}} wide, lance-shaped to narrow oval and ending with a sharp point. The leaves have a central and two marginal veins.[1][2]The flowers are bright yellow, and arranged in a spike or a head near the ends of branches. The heads are up to {{convert|15|mm|in|sigfig=1|abbr=on}} in diameter and contain 2 to 15 groups of flowers in threes. The stamens are arranged in five bundles around the flower, each bundle with 7 to 11 stamens. Flowering occurs from August to February but mainly in October and November. The fruit which follow are woody capsules {{convert|2.3-4|mm|in|sigfig=1|abbr=on}} long in clusters of about six which are about {{convert|10|mm|in|sigfig=1|abbr=on}} in diameter. The rim of the fruit are flat.[1][2] Taxonomy and namingMelaleuca thymoides was first formally described in 1806 by the French biologist, Jacques Labillardière in Novae Hollandiae Plantarum Specimen.[3][4] The specific epithet (thymoides) refers to the similarity of the foliage of this species with those of a species of Thymus in the Family Lamiaceae.[1]Distribution and habitatThis melaleuca occurs in coastal areas in and between the Perth, Albany and Cape Arid districts[1] in the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic regions.[5] It grows in sand on granite hills and in areas that are flooded after rain.[1] ConservationMelaleuca thymoides is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[5]References1. ^1 2 3 4 {{cite book|last1=Brophy|first1=Joseph J.|last2=Craven|first2=Lyndley A.|last3=Doran|first3=John C.|title=Melaleucas : their botany, essential oils and uses|date=2013|publisher=Australian Centre for International Agricultural Research|location=Canberra|isbn=9781922137517|page=359}} {{Taxonbar|from=Q15371841}}2. ^1 {{cite book|last1=Holliday|first1=Ivan|title=Melaleucas : a field and garden guide|date=2004|publisher=Reed New Holland Publishers|location=Frenchs Forest, N.S.W.|isbn=1876334983|pages=288–289|edition=2nd}} 3. ^1 {{cite web|title=Melaleuca thymoides|url= https://biodiversity.org.au/boa/instance/apni/545020|publisher=APNI|accessdate=24 April 2015}} 4. ^{{cite book|last1=Labillardière|first1=Jacques|title=Novae Hollandiae plantarum specimen|date=1806|url=https://books.google.com/books?id=qQ9JAAAAcAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=snippet&q=thymoides&f=false|accessdate=26 April 2015}} 5. ^1 {{FloraBase|name=Melaleuca thymoides|id = 5980}} 5 : Melaleuca|Myrtales of Australia|Flora of Western Australia|Plants described in 1806|Endemic flora of Western Australia |
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