How to distinguish between potherbium and bitter chrysanthemum

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1. Differences in leaves

2. The difference between flowers

Leaf differences: The leaves of Pseudomonas aeruginosa are basal and oblance-shaped or oblong-oblanceolate; the leaves of bitter chrysanthemum are lanceolate, with deep pinnate lobes or large-headed pinnate lobes. Differences in flowers: the raceme-like inflorescences of D. aeruginosa are terminal, and the flowers are yellow, with a diameter of 7 to 10 cm; the flowers of bitter chrysanthemum are in flower heads, and the florets are tongue-shaped and yellow.

1. Differences in leaves

The leaves of P. solani are basal and oblance-shaped or oblong-lanceolate. The edges of the leaves are not cracked or slightly notched, and have irregular serrations or heavy teeth. The leaves on the upper and top stems are serrated, small, oblong, entire, and wrinkled.

The leaves of bitter chrysanthemum are lanceolate and feathery. Deeply lobed or large-headed, pinnately lobed, oblanceolate in shape, or basal leaves unlobed, oval or round.

2. Differences between flowers

Pseudomonas aeruginosa The racemes are terminal, and the flowers are yellow and 7 to 10 cm in diameter; the sepals are light yellow, oblong-elliptical, upright and expanded; the petals are obovate, 8 to 10 mm in length, and 4 to 5 mm in width.

The flowers of bitter chrysanthemum are flower heads, with a few in The tops of stems and branches are arranged in dense corymbs or racemes or solitary at the tops of stems and branches. The florets are tongue-shaped and yellow.

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