Herbariuma Backpackers project
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Japanese cheesewood

Pittosporum tobira

Family · Pittosporaceae · Irritating

AromaticInvasive
Japanese cheesewood (Pittosporum tobira)Japanese cheesewood (Pittosporum tobira)
Jim Evans, CC BY-SA 4.0 · Alvesgaspar, CC BY-SA 4.0

The garden hedge that in May fills whole streets with the scent of orange blossom. It came from Japan, escaped into coastal dunes and cliffs, and today competes with native coastal vegetation.

Where it grows

Town and roadside · Dunes and sand · Walls and rocks · Roadsides and waste ground

Also known as

mock orange, Australian laurel

In flower
In fruit

How to tell it

Leathery spoon-shaped leaves clustered in a rosette at branch tips, dark green and very glossy, with down-rolled margins. White flowers ageing yellow, sweetly and strongly scented. Capsules splitting in three to show sticky red seeds.

What it is confused with

No dangerous lookalikes known in the Iberian Peninsula.

What it is for

Ornamental and windbreak hedge, widely planted on the coast for its salt tolerance. The seeds are toxic and the resin irritates sensitive skin. Not a plant to propagate.

The law says

An invasive alien species in Portugal, with documented impact on dune systems. Do not plant or propagate it.

Where it occurs

Iberian Peninsula
Azores

Each square is an area with recorded observations of this plant. The lighter background is the set of areas where any of the entries has been observed, and serves as a reference. Note what this is not: it is not where the plant lives, it is where people record it, so trails and towns always look fuller than the mountains. Data from GBIF.

Sources

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