1, Hongfeng
Small deciduous trees. The tree is open and the twigs are slender. The bark is smooth and grayish brown. Simple leaves are opposite to each other, often clustered at the top of branches. The leaves are palmately divided, with 5-9 lobes. The lobes are deeply divided to the base of the leaves, and the lobes are ovate or lanceolate, and the leaf margin is sharply serrated.
2. Acer henryi
Small deciduous trees. The bark is dark gray. Branchlets are thin; The branches of the year are purple or light purple-green; Perennial branches are grayish purple or deep purple.
Leaves papery, round in appearance, 6- 10 cm in diameter, heart-shaped or nearly heart-shaped at the base, 5-9 palmately divided, usually 7-lobed, lobes oblong-ovate or lanceolate, apex acute or long-acute, and edges with close sharp serrations.
The lacunae between lobes are blunt or acute, reaching 1/2 or1/3 of the diameter of the leaf; It is dark green and hairless; Light green below, with white tufts in the axils of veins; The main vein is slightly prominent above and convex below; Petiole is 4-6 cm long, thin and hairless.
Second, the growth environment is different
1, Hongfeng
Subtropical tree species Sex likes humid, warm climate and cool environment, is more resistant to shade and cold, and avoids exposure to the hot sun, but it can grow in full light in spring and autumn. The requirements for soil are not strict, and it is suitable for growing in fertile acidic or neutral sandy loam rich in humus, and it is not resistant to waterlogging.
2. Acer henryi
Born at the edge of forest or in sparse forest at an altitude of 200-1200m. Hi is distributed in 30-40 degrees north latitude, cold-resistant area 5.
Like shady environment, afraid of sun exposure in summer, strong cold resistance, can tolerate dry climate conditions. Most of them are born in wet valleys on shady slopes, which are resistant to acid and alkali, dryness and waterlogging, and grow poorly wherever they go in the sun and tidal wind. Suitable for moist and humus-rich soil.
Third, the distribution range is different
1, Hongfeng
Mainly distributed in subtropical China, Japanese and Korean, especially in the Yangtze River valley, and cultivated in most parts of the country.
The main bases are Jiangsu, Zhejiang, Anhui, Jiangxi, Shandong, Hunan and Hebei.
American red maple is distributed in the United States, from Florida coast to Texas, Minnesota, Wisconsin and most parts of Canada.
2. Acer henryi
Distributed in China, Shandong, southern Henan, Jiangsu, Zhejiang, Anhui, Jiangxi, Hubei, Hunan, Guizhou and other provinces. Korea and Japan are also distributed. The type specimens were collected from Japan.
Baidu encyclopedia-Hongfeng
Baidu encyclopedia-Acer henryi