What's the difference between the varieties of osmanthus? How to identify?

1, flowering period and color

Yin Gui: It blooms in autumn, and its color is pure white, milky white, yellow or light yellow.

Jingui: It blooms in autumn, and its color is lemon yellow to golden yellow.

Dangui: It blooms in autumn, with dark color, orange yellow, orange red to vermilion.

Osmanthus fragrans: It blooms in all seasons, and its color is light, from milky yellow to lemon yellow.

2. Leaf color

The front color of osmanthus leaves is dark green.

Jingui is light in color, basically dark green.

The frontal color of cinnamon leaves is light and turquoise.

The new leaves of Cinnamomum cassia are deep red and the old leaves are yellow-green.

In the case of dark light, the difference of leaf color is more obvious.

3. Blade thickness

Distinguish from the thickness of the blade. There are also differences in leaf thickness among these three varieties of osmanthus trees, among which Yin Gui has the thinnest leaf, Dangui has the thickest leaf, followed by Jingui. By comparing the leaves of these three osmanthus trees together, we can quickly judge what kind of osmanthus trees they are. The leaf thickness of Sijigui is between Jingui and Yin Gui.

4. Plant height

From the height of the plant. Because the four seasons laurel is a cluster of shrubs, all of which are very low. Whether Jingui, Yin Gui and Dangui are trees or young trees is obvious.

5. Blade shape

Yingui: The leaves are oblong with serrated or slightly wavy edges. The leaves are wide and thick; The leaves are relatively flat; Leaf margin shallowly undulate, reflexed, entire, even with sparse teeth at the apex.

Jingui: the leaves are oval, uneven in shape, slightly curved and obviously rolled back; Entire, even serrate at apex.

Osmanthus fragrans: oblong or oval, with flat leaves, whole leaf margin, occasional sparse teeth at the apex and wide wedge at the base; Apex obtuse or mucronate; The lateral veins are 8- 10 pairs, and the reticular veins on both sides are obvious.

Four seasons laurel: the leaves are oval, broadly ovate, whole or sparsely serrated, and the wave shape of the leaf margin is not obvious.

6, fragrance

Many people think that the fragrance of osmanthus fragrans is related to the region. In fact, the fragrance of osmanthus fragrans has nothing to do with the region, but mainly with the variety. The order of fragrance is Jingui, Yin Gui, Dangui and Sijigui. So according to traditional varieties, osmanthus fragrans is the most fragrant. People often say that ten miles of osmanthus fragrance means Jingui. But there are dozens of varieties of Jingui, and the most fragrant variety of Jingui is Aquilaria sinensis, which is the most fragrant variety in Jingui.

7. Representative varieties

At present, the varieties of Jingui mainly include Dahua Jingui, Dayehuang, Huangchuan Jingui, Late Jingui, Round Leaf Jingui, Golden Globe Jingui and Aquilaria sinensis.

At present, the main varieties of Dangui are Dahua Dangui, Tooth Dangui, Cinnabar Dangui and Wide Leaf Red. Osmanthus fragrans is a valuable variety in Osmanthus fragrans, and it is also called the four treasures of Yanshan Mountain with red beans, bamboo and green sepals.

At present, the main varieties in Yin Gui are "Seed Yin Gui", "Jiulong Gui", "Early Yin Gui", "Late Yin Gui", "Octagonal Gui" and "Baijie".

At present, the varieties of Osmanthus fragrans mainly include Gui Yue, Osmanthus fragrans, Phyllostachys macrophylla, Cinnamomum camphora and so on.