Five-pointed maple: the leaves are papery, the base is truncated or nearly heart-shaped, the appearance of the leaves is nearly oval, the length is 6-8 cm, the width is 9- 1 1 cm, and it is often 5-lobed; Lobes are ovate, acute at the apex or acute at the tail, entire, and the recesses between lobes are always acute, reaching the middle part of the leaf, with dark green on the upper side and light green on the lower side, except that they are yellow pubescent on the veins or axils, and the rest are hairless; Petiole is 4-6 cm long, thin and hairless.
Acer truncatum: the leaves are opposite, palmately 5-lobed, the tips of the lobes are gradually pointed, sometimes the middle lobe or the middle lobe is 3-lobed again, and the leaf base is usually truncated, and the lowest two lobes sometimes spread downward.
Acer henryi: The leaves are papery, the appearance is round, the diameter is 6 6- 10/0cm, the base is heart-shaped or nearly heart-shaped, 5-9 palmately divided, usually 7-lobed, the lobes are oblong-ovate or lanceolate, the apex is acute or long-acute, and the edge has 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; Petiole is 4-6 cm long, thin and hairless.
Hongfeng: 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. Look at the flower shape and flowering period
Five-pointed maple: the flowers are numerous and heterozygous, the male flowers are coextensive with the hermaphroditic flowers, and most of them are often hairless terminal conical corymbose inflorescences, which are born on leafy branches. The total pedicel length of the inflorescence is 1-2 cm, and the flowers open at the same time as the leaves grow; Petals 5, pale white, oval or elliptic obovate, about 3 mm long; Pedicel length 1 cm, thin, glabrous. Flowering in May.
Acer truncatum: the flowers are small and yellow-green, and they are terminal cymes. In April, the flowers and leaves bloom together.
Acer henryi: the flowers are purple, heterozygous, male and bisexual, born in a hairless corymbose inflorescence, with a total pedicel length of 2-3 cm, and flowering only after the leaves are released; Petals 5, elliptic or obovate, apex obtuse, about 2 mm long; Ovary is hairless, style is long, 2-lobed, stigma is flat, pedicel is about 1 cm, thin and hairless. Flowering in May.
Hongfeng: corymbose inflorescence, terminal, heterozygous flower. Flowering period is April-May.
Extended data
Growth environment of Acer truncatum
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.
Acer truncatum is a weakly positive tree species, which is tolerant to semi-shade, and is vulnerable to sunburn in summer when it is planted alone in direct sunlight. I like warm and humid climate and fertile, moist and well-drained soil, with strong cold resistance and adaptability to acidic, neutral and calcareous soil. The growth rate is moderate and slow.
Like warm climate, it is suitable to be born in a cool, loose and fertile place.
Baidu encyclopedia-Acer semuca
Baidu encyclopedia-Acer truncatum
Baidu encyclopedia-Acer henryi
Baidu encyclopedia-Hongfeng