Trachelospermum

Trachelospermum jasminoides, flowers

The star jasmine ( Trachelospermum ) is a genus of the dogbane family ( Apocynaceae ).

Features

The species are woody vines that have a white milky sap. The leaves are opposite.

The inflorescences are hanging cymes, which are terminal, pseudo- axillary or axillary. The flowers are white or purple and fünfzählig. The calyx is small, divided and has five to ten basal glands. The ends are usually serrated. The crown forms a stem plate flower. It consists of a cylindrical corolla tube below which is expanded at the insertion of the stamens and their throat is constricted. The free Kronlappen overlap one another and are turned to the right. The stamens are recognized in the lower third of the corolla tube. The anthers are arrow-shaped. The bicompartmental ovary stands on a discussion of five free shed. The ovules are numerous. The pen is short, the scar is conical.

The seeds are oblong and have abundant endosperm. The cotyledons are linear, flat, the radicle is short.

Dissemination

The genus is native to Asia, one species occurs in North America.

System

Within the Hundsgiftgewächse in the proper sense ( Apocynoideae ), the genus is placed in the tribe Apocyneae. The genus name is a noun Trachelospermum conservandum and typus conservandum.

The genus consists of 15 to 20 species. Examples:

• Trachelospermum asiaticum: East Asia
• Trachelospermum axillary: East Asia
• Trachelospermum bodinieri: East Asia
• Trachelospermum brevistylum: East Asia
• Trachelospermum difforme: native to North America
• Trachelospermum dunnii: East Asia
• Trachelospermum jasminoides: East Asia

Use

Trachelospermum jasminoides is a widespread, also in Central Europe planted ornamental plant. In addition, Trachelospermum is planted asiaticum.

Documents

• Flora of China, Volume 16, pp. 166