Strophanthus gratus Baill.

Ouabain (en)

Species

Angiosperms > Gentianales > Apocynaceae > Strophanthus

Characteristics

Lianas woody, to 25 m, latex white. Trunk to 10 cm in diam.; branches dark or purplish brown, densely lenticellate, branchlets glabrous. Petiole 0.5-3.2 mm; leaf blade ovate, elliptic, or obovate, 5-18 2-9 cm, leathery, glabrous; lateral veins 5-11 pairs. Cymes 3-32-flowered, glabrous. Flowers fragrant. Sepals obovate or broadly so, 0.7-1.8 cm. Corolla white, turning yellow at base, reddish or purple above, throat reddish; tube 2.5-4.5 cm, inflated in distal half; lobes orbicular or nearly so, 1.5-3.5 X 1.5-3.2 cm, apex rounded; corona lobes pink, awl-shaped, 0.5-1.5 cm, exserted. Filaments pubescent adaxially, connective glabrous, extending into a tail 6-12 mm. Follicles divergent at 180°, cylindric, 23-41 X 3-4.3 cm. Seeds to 2 cm, beak 1.6-6.2 cm, coma to 5 cm. Fl. Feb. 2n = 18.
More
A herb. It is a climbing vine. It can be 25 m long. The flowers are pink with a red throat.
A glabrous liana from W Africa, corolla without tails, white turning yellow to red-purple.
A woody climber. It grows 25 m long.
Life form perennial
Growth form
Growth support climber
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 20.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Primary and secondary moist forest, often at forest margins or on river banks, at elevations from sea-level up to 650 metres.
More
A tropical plant. It is best in a wet soil with a pH of 7. It is best in full sun.
It is a tropical plant. It grows in rainforests and in humus rich soils.
Light 7-9
Soil humidity 3-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-10

Usage

Caution: Many parts of this plant are very poisonous containing chemicals that affect the heart.
More
Caution.
Uses environmental use food material medicinal poison social use
Edible roots
Therapeutic use Constipation (leaf), Dracunculiasis (leaf), Fever (leaf), Gonorrhea (leaf), Snake bites (leaf), Wounds and injuries (leaf), Aphrodisiacs (root), Gonorrhea (stem), Poison(Arrow) (unspecified), Cardiotonic agents (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Strophanthus gratus unspecified picture

Distribution

Strophanthus gratus world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:81895-1
WFO ID wfo-0000317279
COL ID 6ZZ29
BDTFX ID -
INPN ID 455864
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Strophanthus gratus Strophanthus ouaboio Strophanthus perrotii Strophanthus stanleyanus Nerium guineense Strophanthus chopraie Roupalia grata Strophanthus glaber Strophanthus gratus Roupellia grata