Shrubs, 50–150 cm. Stems erect, sparsely puberulent. Petioles 1–4 mm. Leaf blades deltate to deltate-lanceolate or ovate-lanceolate, 3–7 × 1–4 cm, margins serrate to dentate (abaxial faces reticulate-veiny with raised whitish, secondary veins, minutely gland-dotted). Heads usually in 3s, sometimes borne singly. Peduncles 0 or 2–8(–12) mm. Involucres turbinate to campanulate, 5–7 mm. Phyllaries in 4–5 series, apices of the inner appressed, acute (not petaloid or expanded). Corollas pale blue or white.
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