학명 : Chrysogonum virginianum L.
Common Name : golden-knee; green and gold; goldenstar
국표식 등재명 : 오공국화
일어명 : キンセイギク（金星菊） 또는 コガネグルマ（黄金車）
사진 : 2022.12.22 화성우리꽃식물원
국표식에 아래 3종이 등재되어 있다
재배식물 정명 Chrysogonum virginianum var. australe (Alexander ex Small) H.E.Ahles 남방오공국화 2011/12/08
재배식물 정명 Chrysogonum virginianum L. 오공국화 2011/12/08
재배식물 정명 Chrysogonum virginianum 'Allen Bush' 오공국화 '앨런 부시'
Chrysogonum virginianum, the golden-knee,[2] green and gold,[3] or goldenstar, is a North American species of plants in the family Asteraceae. It is native to the eastern United States from New York State and Rhode Island south to Louisiana and the Florida Panhandle.[4][5]The species is sometimes grown as a perennial ornamental because of its showy flowers. It is usually propagated by root cuttings.[6]
Varieties[7]
Formal botanical varieties of wild populations:
Chrysogonum virginianum var. australe (Alexander ex Small) H.E.Ahles - Florida, Georgia, Alabama, Mississippi, Louisiana
Chrysogonum virginianum var. brevistolon G.L.Nesom - Georgia, Alabama, Carolinas, Tennessee, Kentucky
Chrysogonum virginianum var. virginianum - from New York to South Carolina, west to Kentucky + Ohio
Chrysogonum virginianum is an herb up to 50 cm (20 inches) spreading by means of rhizomes. Flower heads are produced singly or in pairs, yellow, with both ray florets and disc florets.[8]