| 词条 | Rhododendron catawbiense |
| 释义 |
|name = Rhododendron catawbiense |image = Rhododendron-catawbiense.jpg |image_caption = Rhododendron catawbiense growing wild on Mount Mitchell, North Carolina |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Ericales |familia = Ericaceae |genus = Rhododendron |subgenus = Hymenanthes |sectio = Ponticum |subsectio = Pontica |species = R. catawbiense |binomial = Rhododendron catawbiense |binomial_authority = Michx. |range_map = Rhododendron catawbiense range map.jpg |range_map_caption = Natural range |}} Rhododendron catawbiense, with common names Catawba rosebay,[1] Catawba rhododendron,[2] mountain rosebay,[2] purple ivy,[2] purple laurel,[2] purple rhododendron,[2] red laurel,[2] rosebay,[2] rosebay laurel,[2] is a species of Rhododendron native to the eastern United States, growing mainly in the southern Appalachian Mountains from Virginia south to northern Alabama. It is a dense, suckering shrub growing to 3 m tall, rarely 5 m. The leaves are evergreen, 6–12 cm long and 2–4 cm broad. The flowers are 3-4.5 cm diameter, violet-purple, often with small spots or streaks. The fruit is a dry capsule 15–20 mm long, containing numerous small seeds. The species is named after the Catawba River.[3] ClassificationRhododendron catawbiense belongs to the Subgenus Hymenanthes, within which it is further assigned to Section Ponticum and Subsection Pontica. The latter — one of the 24 subsections of Ponticum — also contains about a dozen other species. The taxonomy has been confused by a tendency to group all large leaved Rhododendrons under the catch-all R. catawbiense.[4]Cultivation and usesRhododendron catawbiense is cultivated as an ornamental plant, popular both in North America and in parts of Europe. It is primarily grown for its spring flower display. Outside of its native range, many cultivars and hybrids have been created,[5] such as 'Purple Elegans', 'Roseus Elegans', and 'Grandiflorum'. See also
References1. ^{{PLANTS|id=RHCA8|taxon=Rhododendron catawbiense|accessdate=21 October 2015}} 2. ^1 2 3 4 5 6 7 {{cite book |author=Wagstaff, D.J. |year=2008 |title=International Poisonous Plants Checklist: An Evidence-Based Reference |publisher=Taylor & Francis |isbn=9781420062533 |url=https://books.google.com/books?id=h7tbd-5ZAQ8C }} 3. ^André Michaux. Flora Boreali'Americana. 1803. ("Hab. in montibus excelsis Carolinse septentrionalis; juxta originem amnis Catawba")[https://www.biodiversitylibrary.org/page/405035#page/295/mode/1up] 4. ^University of Connecticut: Rhododendron catawbiense {{webarchive|url=https://web.archive.org/web/20120712002353/http://www.hort.uconn.edu/plants/r/rhocat/rhocat1.html |date=2012-07-12 }} 5. ^R. catawbiense cultivars . accessed 1.31.2013
External links{{Commons category|Rhododendron catawbiense|position=left}}
8 : Rhododendron|Flora of the Appalachian Mountains|Flora of the Southeastern United States|Natural history of the Great Smoky Mountains|Endemic flora of the United States|Taxa named by André Michaux|Garden plants of North America|Plants described in 1803 |
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