Kingdom: Plantae
(Unranked): Angiosperms
(Unranked): Eudicots
(Unranked): Rosids
Order: Malvales
Family: Malvaceae
Subfamily: Malvoideae
Tribe: Malveae
Genus: Abutilon
Species: Abutilon hybrid
Common name: Abutilon ‘Lemon Queen’

Abutilon ‘Lemon Queen’ is a cultivated hybrid that grows to over 3 m tall. Its flowers are large, semi-opened, campanulated and they are a light yellow to lemon yellow colour.

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Thanks to Wikipedia for text and information: