| 词条 | Rhododendron williamsianum |
| 释义 |
| image = Rhododendron williamsianum (1).jpg | taxon = Rhododendron williamsianum | authority = Rehder & E.H.Wilson[1] }} Rhododendron williamsianum ({{lang-zh|s={{wt|zh|圆}}{{wt|zh|叶}}{{wt|zh|杜鹃}}|p=yuányè dùjuān}}),[2] the Williams rhododendron,[3] is a species of flowering plant in the heath family Ericaceae. It is native to forested slopes at {{convert| 1800-2800|m|ft|abbr=on}} in western Guizhou, southwestern Sichuan, southeastern Xizang and northeastern Yunnan in southern and western China. Growing to {{convert|1.5|m|ft|abbr=on}} tall and broad, it is a compact evergreen shrub with rounded matt green leaves and rose pink bell-shaped flowers in spring. In cultivation in the UK, Rhododendron williamsianum has gained the Royal Horticultural Society’s Award of Garden Merit.[3][4] It is hardy down to {{convert|-15|C|F|abbr=on}} but like most rhododendron species requires a sheltered position in dappled shade with acid soil that has been enriched with leaf mould. References1. ^{{ThePlantList|tro|50060121|Rhododendron williamsianum|Rehder & E.H.Wilson|accessdate=7 October 2018}} {{Taxonbar|from=Q10926380}}2. ^{{eFloras|2|200016612|Rhododendron williamsianum|volume=14 |last1=Fang |first1=Mingyuan |first2=David F. |last2=Chamberlain |accessdate=7 October 2018}} 3. ^1 {{cite web | url = https://www.rhs.org.uk/Plants/15792/i-Rhododendron-williamsianum-i/Details| title = RHS Plantfinder - Rhododendron williamsianum | accessdate = 7 October 2018}} 4. ^{{cite web | url = https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf | title = AGM Plants - Ornamental | date = July 2017 | page = 85 | publisher = Royal Horticultural Society | accessdate = 2 October 2018}} 3 : Rhododendron|Flora of China|Plants described in 1913 |
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