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African lily

Agapanthus praecox

Family · Amaryllidaceae · Poisonous

ToxicIrritantInvasive

Read this before the sheet

This plant, or one that resembles it, is dangerous. Identifying is not authorising: no app has the authority to tell you that you may eat or touch a plant.

Emergency
African lily (Agapanthus praecox)African lily (Agapanthus praecox)
Dominicus Johannes Bergsma, CC BY-SA 4.0 · Navaneeth Krishnan S, CC BY-SA 3.0

The blue balls that line the roads of Madeira and the Azores in summer. They came from South Africa, were planted everywhere to hold banks, and they are toxic.

Where it grows

Roadsides and waste ground · Walls and rocks · Town and roadside · Fields and pasture

Also known as

lily of the Nile, blue lily

In flower

How to tell it

A dense clump of strap leaves, broad, fleshy and arching, dark green, all rising from the base. A bare sturdy stem to a metre, with a spherical umbel of twenty to a hundred trumpet flowers, pale blue to violet, or white. Thick fleshy roots on a rhizome.

What it is confused with

No dangerous lookalikes known in the Iberian Peninsula.

What it is for

None

The whole plant contains saponins: the sap causes dermatitis and mouth burns, and the rhizome is the most toxic part. There are poisonings from mistaking the fleshy rhizome for an edible bulb. It spreads by seed and by rhizome and takes over whole banks where nothing else comes back.

Where it occurs

Iberian Peninsula
Azores
Madeira

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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