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Bupleurum
See list of 3 species in this genus-
1a. Leaf blades linear, sessile; bracts at base of umbel present; bractlets at base of umbellets lanceolate
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1b. Leaf blades oblong-lanceolate or ovate to suborbicular, perfoliate; bracts at base of umbel absent; bractlets at base of umbellets oblanceolate or elliptic to suborbicular
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2a. Primary branches of inflorescence numbering (3–) 5–10; bractlets at base of umbellets oblanceolate or elliptic to ovate or obovate; fruit smooth; leaf blades usually elliptic-ovate to suborbicular
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2b. Primary branches of inflorescence usually numbering 2 or 3 (–5); bractlets at base of umbellets suborbicular; fruit tuberculate; leaf blades usually ovate to oblong-lanceolate
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Each photo represents one species in this genus.