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Tripleurospermum
See list of 2 species in this genusCapitula must be neatly pressed for accurate width measurements.
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1a. Plants ascending to erect; capitula 3–4 cm wide; ultimate segments of the leaves filiform [Fig. 474], 4–20 mm long; rays 10–20 mm long
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1b. Plants depressed to spreading; capitula 1.5–3 cm wide; ultimate segments of the leaves linear, 1.5–5 mm long; rays 7–12 mm long
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Each photo represents one species in this genus.