| 词条 | Ornithogalum dubium |
| 释义 |
|taxon = Ornithogalum dubium |authority = Houtt. |image = Dubium FR 2013.jpg |synonyms =
|synonyms_ref = [1] }}{{Commons|Ornithogalum_dubium|Ornithogalum dubium}} Ornithogalum dubium, common names sun star or star of Bethlehem, is a species of flowering plant in the family Asparagaceae, subfamily Scilloideae. It is a South African (Cape Province) endemic. The Latin specific epithet dubium means "dubious" or "unlike others of the genus".[2] DescriptionGrowing to {{convert|50|cm|0|abbr=on}} tall, O. dubium is a bulbous perennial with 3-8 yellowish green leaves. The leaf margins are ciliate with scapes {{convert|10|-|25|cm|0|abbr=on}} long. The flowers are borne in winter or spring, in cylindrical to almost spherical racemes consisting of 5-25 flowers. The tepals may be orange, red, yellow or rarely white, often with a green or brown center. CultivationO. dubium is frost-tender and is best overwintered in a dry, frost-free place, then re-potted in spring. The main soil requirement is excellent drainage, with ample water early in the growth cycle, but dry during the dormant season.[3]This plant has gained the Royal Horticultural Society's Award of Garden Merit.[4][5] References1. ^{{citation|url=http://www.theplantlist.org/tpl1.1/record/kew-283153|title=The Plant List: A Working List of All Plant Species|accessdate=1 October 2016}} {{Taxonbar|from=Q2028145}}{{DEFAULTSORT:Ornithogalum dubium}}2. ^{{cite book|last=Harrison|first=Lorraine|title=RHS Latin for gardeners|year=2012|publisher=Mitchell Beazley|location=United Kingdom|isbn=9781845337315|pages=224}} 3. ^{{cite web|title=Southern African Ornithogalum |url=http://www.pacificbulbsociety.org/pbswiki/index.php/SouthernAfricanOrnithogalum |publisher=Pacific Bulb Society|accessdate=17 July 2013}} 4. ^{{cite web|title=RHS Plant Selector - Ornithogalum dubium |url=http://apps.rhs.org.uk/plantselector/plant?plantid=5014|accessdate=17 July 2013}} 5. ^{{cite web | url = https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf | title = AGM Plants - Ornamental | date = July 2017 | page = 70 | publisher = Royal Horticultural Society | accessdate = 14 April 2018}} 2 : Ornithogalum|Flora of the Cape Provinces |
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