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A. Nòvi-Bélgii, L. Rarely tall; leaves oblong to linear-lanceolate, entire or sparsely serrate, the upper partly clasping and often somewhat auriculate; heads 4–5´´ long; rays bright blue-violet.

But they occasionally become lobed, as in the walnut and the lime; or petiolate, as in Geranium molle; or auriculate, as in the ash.

The stem is attached at the concave margin, where the cap is auriculate and has a prominent boss or elevation, and bent at right angles with a characteristic curve.