Strophanthus gratus

Flower name
Strophanthus gratus
Scientific name
Strophanthus gratus
Aliasストロファンツス, グラツス, Strophanthus gratus, ニオイキンリュウカ, Climbing oleander, Cream fruit
Place of originWest Africa
Place of floweringGreenhouse, Botanical Gardens, Subtropical region, Specific area
Flowering seasonMay, June

What is Strophanthus gratus

Strophanthus gratus (scientific name: Strophanthus gratus) is native to West Africa and is an evergreen vine shrub of the genus Strophanthus. From late spring to early summer, the inflorescence extends from the shoot apex, and about five funnel-shaped, split-open, five-flowered flowers bloom. The petals are magenta on the outside and pale pink on the inside. The flowers have a faint fragrance, and the color of the flowers changes from light pink to white over time. Seeds have the toxicity of "Strophantin", which has long been used as a hunting arrow poison. Ipoh, curare, aconite, and strophanthus are among the world's four major poisons. This arrow poison is not absorbed by the human digestive system.
In modern times, it is a drug called a cardiotonic drug, G-strophantin. The genus name 'Strophanthus' is Latin for "strophos (twisted string) + anthos (flower)", and the species name 'gratus' means "pleasant."

Generic name: Strophanthus gratus, Scientific name: Strophanthus gratus, also name: Scented ryuka, Climbing oleander, Cream fruit Strophanthus gratus species, stem diameter: 10 cm, vine length: 7 to 25 m, leaf length: 30 cm, leaf shape: oblong, phyllophy: opposite, leaf quality: cortex / glossy, leaf edge: whole edge, Flowering period: May to June, where the flower blooms: stem, inflorescence shape: raceme, flower color: light pink → white (changes with time) Diameter: 7 cm, Fragrance: Fragrant smell on flower, Fruit type: Bag fruit, Fruit shape: Beef horn, Number of seeds: 1000, Seed type: Flat and smooth lanceolate, Special note: Toxic, currently intense Used as medicine.