You see them climbing on walls, on fences, in neighbours’ gardens: white flowers, intense scent, summer air. But be careful, because not everything that looks like jasmine is really jasmine. And the distinction, in this case, is not just a question for curious botanists: it can directly concern your health and that of those around you.
The “original” jasmine is known in botany by the name of Jasminum officinalebelongs to the family of Oleaceae and is loved around the world for its unique fragrance, used in perfumery and aromatherapy for millennia. Its most famous double, however, is the reconspermo (Trachelospermum jasminoides), also called false jasmine, which belongs to a completely different family – the Apocynaceae – and hides some pitfalls that you should be aware of.
Jasmine varieties: let’s start from the truth
White jasmine (Jasminum officinale)
Native to western Asia and the Persian area, white jasmine is an evergreen climbing plant with tender, shiny green leaves and small flowers with five flat petals, arranged in a star shape around the central nucleus. It blooms in spring and summer, giving that sweet and enveloping scent that we all know.
But jasmine isn’t just beautiful to look at (and smell). In traditional medicine — and increasingly confirmed by contemporary ethnobotanical research — different parts of the plant are used to prepare herbal teas and natural remedies, thanks to their calming, anti-inflammatory and antioxidant properties. Its essential oil is one of the most studied in aromatherapy: several recent studies confirm its effectiveness in reducing cortisol levels, promoting relaxation and improving the quality of sleep, without the side effects of conventional drugs.
Cultivation requires a mild climate and good exposure to the sun, but it also adapts well to life in a pot, making it perfect for scented terraces and balconies.
The “false jasmine”: beautiful but to be treated with respect
The rediscovery (Trachelospermum jasminoides), native to eastern Asia — from Vietnam to Japan, passing through China and Korea — is the plant that is most often mistaken for real jasmine. And it’s understandable: it has shiny dark green leaves, fragrant white flowers and enviable resistance even in the cold months.
Unlike jasmine, however, false jasmine has flowers with a tubular corolla that opens into 5 petals rotated clockwise, almost forming a small pinwheel. It grows well both in the shade and in full sun, preferably sheltered from cold winds, and for this reason it is much loved as a low maintenance garden plant.
The critical point? Rhyncosperm is a toxic plant, comparable in some ways to oleander. It contains a white, milky substance (latex) that can cause skin and eye irritation upon simple contact, and its flowers contain alkaloids that, if ingested, can cause serious effects. It is therefore essential to never use it as a natural remedy, herbal tea or infusion, and be careful especially if there are children or pets in the house.
How to recognize false jasmine in seconds
You don’t need to be an expert in botany. Three quick observations are enough:
The leaves
In real jasmine they are tender, light green in color and often composed of multiple leaves; in false jasmine they are simple, leathery and shiny dark green.
The flowers
In the original jasmine the petals are flat and arranged in a star shape; in the recospermo the petals are slightly twisted clockwise, with a more evident tubular base.
Seasonality
True jasmine tends to lose its leaves in winter in colder climates, while false jasmine remains evergreen year-round, even in cold temperatures.
The side effects of false jasmine: what to know
Rincospermo should never be used as a natural remedy or for herbal preparations such as jasmine oleolite. In addition to the irritation from contact with latex, its alkaloids, if ingested, can cause serious effects. Among the symptoms reported:
In case of accidental ingestion, especially by children or animals, it is important to contact the poison control center or doctor immediately.
The good news is that, used as an ornamental plant and with due precautions, rhincosperm is absolutely safe and continues to be one of the most popular climbing plants for gardens and fences. You just need to know who you’re dealing with.
