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Hedeoma
See list of 2 species in this genus-
1a. Leaf blades lanceolate to ovate or obovate, 4–15 mm wide, the principal ones petiolate; upper calyx lobes triangular and eciliate, the lower ones subulate and ciliate; mericarps subglobose, 0.7–1 mm long, not glaucous
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1b. Leaf blades linear to narrow-oblong, 1–3 mm wide, sessile or subsessile; all the calyx lobes subulate and ciliate; mericarps narrow-ovoid, 1–1.3 mm long, glaucous
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Each photo represents one species in this genus.