The difference between Polygonatum and Rehmannia glutinosa

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1. Differences in leaves

2. The difference between flowers

Leaf differences: Polygonatum leaves are whorled, strip-lanceolate, with curved apex; Rehmannia glutinosa leaves will form a rosette shape at the base of the stem, and the leaves are oval to oblong. Flower differences: Polygonatum inflorescences are umbrella-shaped, with milky white or light yellow petals; Rehmannia glutinosa racemes, the corolla has 5 lobes, and is purple-red.

1. Leaf differences

Polygonatum leaves are whorled, with 4 to 6 leaves in each whorl. They are strip-lanceolate, 8 to 15 cm long, and about 6 to 16 mm wide. The front ends of the leaves are curved. into a hook.

Rehmannia glutinosa leaves are usually found on the stems The base forms a rosette, and the leaves are oval to oblong, green above and slightly purple or purple-red below, 2 to 13 cm long and 1 to 6 cm wide, with irregular crescents or blunt serrations on the edges.

2. Flower differences< /h2>

Polygonatum inflorescences usually have 2 to 4 flowers, like an umbrella, with a total stem length of 1 to 2 cm and a pedicel length of 4 to 10 mm. The flower petals are milky white or light yellow, with a total length of 9 to 12 mm. The flower bracts Membranous, diamond-shaped or strip-lanceolate.

Rehmannia glutinosa is slightly at the top of the stem They are arranged in racemes, or all solitary in the leaf axils and scattered on the stems. The corolla tube is arched and purple-red outside. The corolla has 5 lobes, the apex is slightly blunt or slightly concave, the inside is yellow, and the outside is purple-red.

2. The difference between flowers

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