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What is the difference between water gardenia and yellow gardenia? A quick guide to tell them apart

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Leaf differences: Water gardenia leaves are opposite or in whorls of 3, and the leaf blades are oblanceolate; yellow gardenia leaves are leathery, oblong-lanceolate or seal-shaped lanceolate, with entire margins. Flower differences: Water gardenia flowers are solitary, with 5 to 6 white petals; yellow gardenia flowers have a white or creamy yellow corolla and are salverform.

1. Leaf differences

Water gardenia leaves are opposite or in whorls of 3, the leaf blades are lanceolate, 7 to 14 cm long, the leaves are leathery, bright in color, and the stipules are membranous.

Yellow gardenia leaves are opposite or in whorls of 3, the leaves are leathery, the leaf blades are oblong-lanceolate or seal-shaped lanceolate, the leaf tips gradually become pointed or short-acuminate, the base is wedge-shaped, the margin is entire, there are short petioles, and stipules are present and membranous.

2. Flower differences

Water gardenia flowers are solitary in the leaf axils, the flowers have short stalks, the calyx is cylindrical, and there are 5 to 6 white petals.

Yellow gardenia flowers are solitary at the branch tips, the pedicels are 3 to 5 mm long, the calyx tube is obconical or ovate, 5 to 25 mm long, and the corolla is white or creamy yellow and salverform.

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