Yellow oleander actually has another flower name too. What is its alias?

Aliases of yellow oleander

Yellow oleander, an erect shrub plant, is also called yellow lanchan.

Origin of yellow oleander

This variety is native to Brazil and is now widely cultivated in tropical regions. It is cultivated in gardens in Guangxi, Guangdong, Fujian, Taiwan, China and Beijing (in greenhouses) in China.

Morphological characteristics of yellow oleander

Yellow oleander is about 1-2 m tall, has milky sap, and its branches are grayish white.

The leaves are whorled in 3-5 per node, entire, mostly elliptical or obovate-oblong, about 6-12 cm long and about 2-4 cm wide. The leaf tip is acuminate or acute, the base is cuneate, the upper surface of the leaf is dark green, and the underside is light green. Except for the midvein and lateral veins on the underside having hairs, other parts are hairless.

The veins are flat on the upper leaf surface and raised on the underside; lateral veins are 7-12 on each side, anastomosing before reaching the margin; the petiole is very short, with glands at the base and in the axils.

The cyme of yellow oleander is terminal, the pedicel has hairs, the flowers are yellow, 4-6 cm long, with an opening diameter of about 4 cm; the bracts are lanceolate and borne at the base of the pedicel.

The corolla is funnel-shaped, with reddish-brown stripes inside; the lower part of the corolla is cylindrical, no more than 2 cm long, 2-4 mm in diameter, swollen at the base; the throat expands upward into the limb, about 3 cm long and about 1.5 cm in diameter; the apex of the limb is 5-lobed, the corolla lobes overlap to the left, the lobes are ovate or circular, obtuse at the apex, 1.6-2.0 cm long and about 1.7 cm wide.

Yellow oleander has 5 stamens, growing in the throat of the corolla tube; the filaments are relatively short, with hairs at the base; the anthers are ovate, relatively obtuse at the apex; the disk is fleshy and entire; the ovary is entire, 1-loculed; the style is filiform; the stigma is obtuse at the apex and ring-shaped at the base.

The capsule of yellow oleander is spherical, with long spines, about 3 cm in diameter; the seeds are flat, with a membranous margin, about 2 cm long and about 1.5 cm wide; the flowering period is from May to August, and the fruiting period is from October to December.