The difference between male and female Picea abies is as follows:

First: the male bulbous flower is solitary in the axil of the leaf, and the female bulbous flower's ovule is solitary on the tip of the short lateral axis of the upper part of the flower axis, and there is a disc-shaped aril at the base.

Secondly, it can be identified by touching it with your hand, and there is yellow powdered pollen on the male plant, but nothing on the female plant.

Third: look at the leaves, ring is female, double leaves are male.

Fourth: April and May flowering is the male tree, not flowering is the female tree.

Fifth: the red bean cedar is dioecious, the male bulbous flower solitary in the axil of the leaf, the female bulbous flower of the ovule is single at the top of the short lateral axis of the upper part of the flower axis, the base of the disc-shaped aril. The seeds are flat-ovoid, 2-angled, the seed ovoid, aril cup-shaped, red. The male-female ratio of wild redbud is generally 1:9, and the male-female ratio of redbud in artificial plantations can be up to about 3:7.

The authenticity of the redbud is recognized:

It is necessary to look at it from a close distance to be able to distinguish it. Redbud leaves are dark green, thicker, with rounded tips, no regular leaf changes, and almost evergreen in all seasons. The bark is smooth and brownish red. The roots have many lampas-like fibrous roots. Or smell the taste, generally have a little acidic flavor may be true; see the grain, scrape the outer layer to see when the red bean tree seedlings of the real and fake identification of red bean tree is an evergreen tree, twigs turn yellowish-green or light reddish-brown in the fall, the leaf strip, dioecious, the seeds are flat and rounded. The seeds are used to extract oil and can also be used as medicine.

The red bean tree is a shallow-rooted plant, with an inconspicuous main root and well-developed lateral roots, up to 30 m tall and with a trunk diameter of 1 m. The leaves are spirally alternate, twisted into two rows at the base, slightly curved in strips, 1-2.5 cm in length and 2-2.5 mm in width, with a slightly anticurved leaf margin and an acuminate leaf end, and two broad yellow-green or gray-green stomatal bands on the backs of the leaves, and a densely populated midvein with tiny bumps, and the green band of the leaf margins is extremely narrow, and the leaves are dioecious, with the male bulbous flower solitary at the axil of the leaf, and the male bulbous flower single in the axil of the leaf. The male flowers are solitary in the leaf axils, and the ovules of the female flowers are solitary at the tip of the short lateral rachis at the upper part of the flower axis, with a disc-shaped aril at the base. Seeds compressed ovoid, 2-angled, seed ovoid, aril cup-shaped, red.