How to distinguish Changshan
I. leaves
Changshan leaves vary greatly in shape and size, usually elliptic, Obovate, elliptic-oblong or lanceolate, about 6 to 25 cm long and 2 to 10 cm wide, apex gradually sharpening, base cuneate, leaf margin serrate or coarsely toothed, vaguely wavy, green or purple on both sides, surface without tomentose or only short tomentose on leaf veins, petiole 1.5 to 5 cm long.
Second, flowers
Changshan has terminal corymbose panicles, sometimes lateral inflorescences in its leaf axils, 3 to 20 cm in diameter, flowers white or blue, buds Obovate, 6 to 10 mm in diameter when in full bloom, pedicels 3 to 5 mm long, calyx obconical, petals oblong-oval, slightly fleshy.
III. Fruit
Changshan berries are 3 to 7 mm in diameter, blue, black when dried, and reticulate with seeds about 1 mm long.
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How to identify Camptotheca acuminata
Trunk: Camptotheca acuminata is a tall deciduous tree with a maximum length of more than 20 meters. The bark is gray, the branches are relatively small, the new branches are purple-green, and the perennial ones are mostly brown. Leaves: Camptotheca acuminata leaves have paper texture, oval growth, relatively large area, can reach 15-28 cm, the leaves are bright green above and light green below. Flowers: the inflorescence of Camptotheca acuminata is nearly spherical, the petals are light green, and the flowering period is from May to July.
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The difference between disease-free seed and Koelreuteria paniculata
Tree shape difference: the disease-free son can grow to more than 20m, while the oak tree can only grow to 7-13m, which is shorter than the former. Leaf difference: the total length of leaves and petioles of disease-free seeds is 25-45cm, with 5-8 pairs of leaflets above. The leaf length of Koelreuteria paniculata is about 50cm, with 5-8 pairs of leaflets on it. Its lobules are more round than the former.
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