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Matricaria
See list of 2 species in this genus-
1a. Capitula without ray flowers [Fig. 432]; disk corollas 4-lobed, green-yellow; pappus a short crown; ultimate segments of leaf blades short
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1b. Capitula with conspicuous, white ray flowers; disk corollas 5-lobed, yellow; pappus absent or a short crown; ultimate segments of leaf blades longer
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Each photo represents one species in this genus.