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1 Plant herbaceous, with a single or few stems from a rhizome; seeds 1.7-1.8 mm long; calyx lobes 2.8-3.5 mm long (when in fruit); [endemic to FL Gulf Coast] | |
1 Plant suffruticose, with many stems clustered from the plant base; seeds 1.1-1.5 mm long; calyx lobes 1.5-2.5 mm long (when in fruit); [of e. LA westward] |