The scientific name of Panjiao tree is Panjiao tree. It is an evergreen tree with a height of 30 meters and a diameter of 1.2 meters. The branches are whorled, the bark is light yellow to gray yellow, with longitudinal striations, and the inner bark is yellow-white. After being injured, a large amount of white milk oozes out with a strong fishy smell; the branchlets are green, prismatic with longitudinal grooves when young, and cylindrical when old, with obvious signs of fallen leaves.
The leaves are whorled with 3-4 leaves, opposite in between, thin herbaceous, oblong-elliptical, apex acuminate, tail-shaped or acute, base wedge-shaped or blunt, 7-20 cm long, 2.5-4.5 cm wide, bright green on the surface, light green on the underside, slightly off-white, hairless on both sides.
Many flowers are integrated into terminal cymes, the corolla is tall and saucer-shaped, the corolla tube is cylindrical, the stamens are borne in the middle of the corolla tube, the top does not extend beyond the corolla throat, the filaments are filaments, and the style Cylindrical, about 3 mm long, stigma club-shaped, 2-lobed at the top, many ovules per carpel.
The exocarp is dark brown with longitudinal shallow grooves; the seeds are oblong, flat, about 1 cm long and 4 mm wide, with brown-yellow hairs on both ends. The flowering period is from April to July, and the fruiting period is from August to December.
Extended information:
Born in tropical and subtropical mountain evergreen forests or valley tropical rainforests, often growing in groups, some growing in sparse forests, liking sunshine, and Warm to high temperature environment, overwintering should not be lower than 15℃;
It likes moisture and fears dryness. The ambient humidity should be kept above 50%. It has a well-developed root system and a certain degree of wind resistance. It is suitable for growing in deep, fertile and loose acidic soil. Sandy loam soil; medium resistance to sulfur dioxide; leaves fall off due to damage, but can continue to grow new leaves. ?
It is often found in valleys and mountainside environments with an altitude of 500-800 meters, gentle winds and high humidity, and is often distributed in clusters. Produced in Yunnan, China and Hainan, Guangdong, and distributed in India, Myanmar, and Indonesia. The type specimen was collected from Myanmar.