Emmenopterys henryi Oliv. is a deciduous tree of Rubiaceae, with a height of 30 meters and a grayish brown scaly bark. Branchlets are stout with lenticels, leaves are papery or leathery, leaves are broadly elliptic, broadly ovoid or ovoid, the upper part is hairless or sparsely strigose, the lower part is pale, the stipules are large, triangular and ovoid, and the conical cymes are terminal;

The flowers are fragrant, the lobes are nearly round, the abnormal leaflike calyx lobes are white, reddish or yellowish, the corolla is funnel-shaped, white or yellow, and the filaments are downy. Capsule is oblong-ovoid or nearly spindle-shaped, with many seeds. It blooms in June-August and bears fruit in 8- 1 1 month.

Extended data:

Pest control

There is basically no disease in the natural environment, but there are also diseases after transplanting and fertilization. The disease can be eliminated by spraying thiophanate methyl and carbendazim once a month on trees and trays. The main pests are ants and snails, and ants can be killed by spraying with Baishude or Kung Fu pesticide.

Snails like wet environment, which mainly harms the tender leaves and stems of trees. They can be killed and captured artificially by spraying pesticides such as Wokexing and Mowoling on the surface of trees.

Main value

The trunk is towering and the flowers are beautiful, which can be used as garden ornamental trees. Bark fiber is soft and fine, which is the raw material for wax paper and artificial cotton. The obvious difference between wood borderless wood and heartwood is that the texture is straight and the structure is fine, which is used for making furniture and building. Waterlogging tolerance can be used as a dike-fixing plant.