Trachelospermum is a genus of about 15 species of evergreen

Evergreen

In botany, an evergreen plant is a plant that has leaves in all seasons. This contrasts with deciduous plants, which completely lose their foliage during the winter or dry season.There are many different kinds of evergreen plants, both trees and shrubs...

 woody

Woody plant

A woody plant is a plant that uses wood as its structural tissue. These are typically perennial plants whose stems and larger roots are reinforced with wood produced adjacent to the vascular tissues. The main stem, larger branches, and roots of these plants are usually covered by a layer of...

 vine

Vine

A vine in the narrowest sense is the grapevine , but more generally it can refer to any plant with a growth habit of trailing or scandent, that is to say climbing, stems or runners...

s in the dogbane

Apocynum

Apocynum, commonly known as Dogbane and Indian Hemp, is a genus of the plant family of the Apocynaceae with seven species. From the Greek: apo, away; cyno, dog, attributed to its toxicity...

 family, Apocynaceae

Apocynaceae

The Apocynaceae or dogbane family is a family of flowering plants that includes trees, shrubs, herbs, and lianas.Many species are tall trees found in tropical rainforests, and most are from the tropics and subtropics, but some grow in tropical dry, xeric environments. There are also perennial herbs...

. All species are native to southern and eastern Asia

Asia

Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

 except for T. difforme, which can be found in southeastern North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

.

They have long stems climbing to 12 m or more high in tree

Tree

A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...

s. The leaves

Leaf

A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 are opposite, simple broad lanceolate to ovate, 2-8 cm long and 0.5-4 cm broad. The flower

Flower

A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s are salverform (like those of Phlox

Phlox

Phlox is a genus of 67 species of perennial and annual plants found mostly in North America in diverse habitats from alpine tundra to open woodland and prairie. Some flower in spring, others in summer and autumn....

), simple, 2.5-7 cm broad, with five white, pale yellow or purple petals joined together at the base to form a tube.

Selected species

• Trachelospermum asiaticum Nakai – Yellow Star-jasmine
• Trachelospermum assamense
• Trachelospermum axillare Hook.f.
• Trachelospermum bodinieri
• Trachelospermum brevistylum
• Trachelospermum difforme (Walter) A.Gray
  Asa Gray
  -References:*Asa Gray. Dictionary of American Biography. American Council of Learned Societies, 1928–1936.*Asa Gray. Encyclopedia of World Biography, 2nd ed. 17 Vols. Gale Research, 1998.*Asa Gray. Plant Sciences. 4 vols. Macmillan Reference USA, 2001....
  
  – Climbing Dogbane
• Trachelospermum dunnii
• Trachelospermum jasminoides
  Trachelospermum jasminoides
  Trachelospermum jasminoides is a species of flowering plant in the milkweed family, Apocynaceae, that is native to eastern and southeastern Asia, into Japan, Korea, southern China, and Vietnam. Common names include Star Jasmine, Confederate Jasmine, and Trader's Compass.-Description:Trachelospermum...
  
  (Lindl.) Lem.
  Charles Antoine Lemaire
  Charles Antoine Lemaire , was a French botanist and botanical author, noted for his publications on Cactaceae....
  
  – Star-jasmine, Trader's Compass
• Trachelospermum lanyuense
• Trachelospermum lucidum
• Trachelospermum mandienum
• Trachelospermum nitidum

Uses

Trachelospermum jasminoides

Trachelospermum jasminoides

Trachelospermum jasminoides is a species of flowering plant in the milkweed family, Apocynaceae, that is native to eastern and southeastern Asia, into Japan, Korea, southern China, and Vietnam. Common names include Star Jasmine, Confederate Jasmine, and Trader's Compass.-Description:Trachelospermum...

is a popular ornamental plant

Ornamental plant

Ornamental plants are plants that are grown for decorative purposes in gardens and landscape design projects, as house plants, for cut flowers and specimen display...

in warm temperate areas, grown for its strongly scented flowers.

External links

• Flora of China: Trachelospermum
• Trachelospermum jasminoides
• Trachelospermum Jasminoides and Trachelospermum Asiaticum