Cestrum poasanum
NameCestrum poasanum
Scientific NameCestrum poasanum
Common NamesPoas Jasmine, Poas Cestrum
Plant FamilySolanaceae
Natural HabitatNative to the cloud forests and montane wet forests of Costa Rica, particularly around the Poás Volcano, at elevations typically between 1,500 and 2,500 meters.
Parts Usedleaf,flower
Medicinal Actions
Traditional UsesDue to its significant toxicity, Cestrum poasanum is not widely used in traditional medicine. Some Cestrum species have limited folk uses, often external or highly risky, but specific safe applications for C. poasanum are not well-documented. It is primarily known as an ornamental plant.
Active Constituentssteroidal glycoalkaloids, saponins, flavonoids
Preparation Methods
Contraindications & WarningsALL parts of Cestrum poasanum are considered highly toxic. Ingestion can cause severe gastrointestinal distress, neurological symptoms, and can be fatal to humans and livestock. Avoid use by pregnant or breastfeeding individuals, children, and those with liver or kidney conditions.
Cultivation NotesThis plant thrives in cool, moist, high-altitude conditions, often found in partial shade. It requires well-drained, rich soil and is typically grown as an ornamental in suitable tropical or subtropical climates.
Rarityuncommon
Description
Cestrum poasanum is a shrub or small tree, often epiphytic, characterized by its simple, elongated leaves and pendulous clusters of tubular, pink to purplish-red flowers that open into five-pointed stars. The flowers are typically fragrant, especially at night.
