Hengyang City has 99 families, 342 genera, and 1,047 species of woody plants.

National First-Class Protected Rare Tree Species: Ginkgo (Ginkgo biloba), money tree (Pachira aquatica), golden money tree (Podocarpus macrophyllus), water pine (Glyptostrobus pensilis), Bretschneidera (Bretschneidera sinensis), velvet-pod honey locust (Gleditsia vestita), and fragrant fruit tree (Emmenopterys henryi), among others.

National Second-Class Protected Rare Tree Species: Cephalotaxus (Cephalotaxus spp.), eucommia (Eucommia ulmoides), zelkova (Zelkova spp.), Machilus (Machilus spp.), Chinese yew (Taxus chinensis), and magnolia (Magnolia officinalis).

National Third-Class Protected Tree Species: Yellow-branch oil fir (Cunninghamia konishii), soft-hair oil fir (Cunninghamia lanceolata var. pubescens), concave-leaf magnolia (Magnolia obovata), Phoebe (Phoebe spp.), Chinese ash (Fraxinus chinensis), silver dove tree (Davidia involucrata), Chinese torreya (Torreya grandis), golden-leaf tree (Chrysolepis chrysophylla), Michelia (Michelia spp.), Hunan stone oak (Lithocarpus hancei), and Yao mountain sorbus (Sorbus randaiensis).

Fast-Growing and High-Quality Native Tree Species: Chinese fir (Cunninghamia lanceolata), Masson pine (Pinus massoniana), oak (Quercus spp.), Castanopsis (Castanopsis spp.), Lithocarpus (Lithocarpus spp.), Cyclobalanopsis (Cyclobalanopsis spp.), Liquidambar (Liquidambar formosana), oak (Quercus spp.), Schima (Schima superba), and Kalopanax (Kalopanax septemlobus), totaling 20 families and 120 species.

Introduced Tree Species: Slash pine (Pinus elliottii), loblolly pine (Pinus taeda), Scots pine (Pinus sylvestris), Huangshan pine (Pinus hwangshanensis), Chinese white pine (Pinus armandii), dawn redwood (Metasequoia glyptostroboides), bald cypress (Taxodium distichum), pond cypress (Taxodium ascendens), smooth-bark birch (Betula luminifera), alder (Alnus spp.), and Italian poplar (Populus).

Economic and Specialty Trees for Selective Breeding and Cultivation: Nan bamboo (Phyllostachys pubescens), oil-tea camellia (Camellia oleifera), sandalwood (Santalum spp.), chestnut (Castanea mollissima), Qidong seedless fragrant pomelo (Citrus maxima), Hengshan Kowloon plum (Prunus salicina), apple plum (Prunus salicina), smooth-skinned jujube (Ziziphus mauritiana), ginkgo nut (Ginkgo biloba), among others.