Forsythia koreana
{{short description|Species of flowering plant in the olive family Oleaceae}}
{{Speciesbox
| image = Forsythia koreana.jpg
| image_alt =
| image_caption =
| genus = Forsythia
| species = koreana
| authority = (Rehder) Nakai
| synonyms =
{{Species list
|Forsythia koreana var. autumnalis|Uyeki
|Forsythia koreana f. autumnalis|(Uyeki) Nakai
|Forsythia koreana var. pilosa|(U.C.La & Chae G.Chen) U.C.La
|Forsythia pilosa|U.C.La & Chae G.Chen
|Forsythia viridissima var. koreana|Rehder
|Rangium koreanum|(Rehder) Ohwi
|Rangium koreanum var. autumnalis|(Uyeki) Uyeki
}}
| synonyms_ref = {{ThePlantList|id=kew-369424|taxon=Forsythia koreana|authority=(Rehder) Nakai|accessdate=6 June 2017}}
}}
Forsythia koreana, commonly called gaenari (Hangul:개나리) or Korean goldenbell tree,{{Cite book|url=http://www.forest.go.kr/kna/special/download/English_Names_for_Korean_Native_Plants.pdf|title=English Names for Korean Native Plants|publisher=Korea National Arboretum|year=2015|isbn=978-89-97450-98-5|location=Pocheon|pages=471|access-date=6 June 2017|via=Korea Forest Service|url-status=dead|archiveurl=https://web.archive.org/web/20170525105020/http://www.forest.go.kr/kna/special/download/English_Names_for_Korean_Native_Plants.pdf|archivedate=25 May 2017}} is a species in the olive family, Oleaceae. It grows to about {{convert|3|m|ft|abbr=on}}. The leaves are oval in shape, have teeth, and are {{convert|3-12|cm|in|abbr=on}} long. The front of the leaf is dark green and the back is dark blue, but both sides are hairless.{{cite web|title=[korean forsythia] (두산백과)|url=http://terms.naver.com/entry.nhn?docId=1057571&cid=40942&categoryId=32816|website=개나리 [korean forsythia] (두산백과)}}