The difference between round-leaf mallow and wild sunflower
I. difference between leaves
The leaves of round leaf mallow are alternate, about 1 to 3 cm long and 1 to 4 cm wide, reniform, the apex of the leaf is obtuse, the base is heart-shaped, usually 5 to 7 lobes, the margin of lobes are crenulate, pilose above.
The leaves of wild sunflower are reniform or round, 5 to 11 cm in diameter, usually palmately 5 to 7-lobed, lobes triangular, with an obtuse tip, and edges with obtuse teeth.
Second, the difference between flowers
Round-leaf mallow flowers in the upper 3 to 5 clusters, solitary at the base, Corolla is white or pink, about 1.5 cm in diameter, each flower has 5 petals, petals inverted heart-shaped.
The Corolla of wild sunflower is pale white or reddish, with 5 petals, about 6 to 8 mm long, and the apex is concave.
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The difference between bluegrass and orchid
Leaf difference: the leaves of bluegrass are long oval or oblanceolate, the top gradually sharpens, the surface is smooth and glabrous, and the edges are denticulate; the leaves of orchids are basal, strip-shaped or sword-shaped, narrowing slightly to both ends. Flower difference: bluegrass heads with white or reddish flowers. The flowers of the orchid are white and arranged in racemes or panicles.
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The difference between American pokeweed and pokeweed
Plant distinction: American pokeweed tall stem erect or scattered, cylindrical; Shanglu stem erect, cylindrical, with longitudinal grooves. Leaf difference: American pokeweed leaves long oval; Shanglu leaves were thin paper, oval. Flower distinction: American pokeweed racemes erect, white flowers; Shanglu racemes terminal, cylindrical, white flowers.
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