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Key to Hypericum, Key D: herbaceous St. John's-worts with leaves ascending or appressed, 1-nerved, < 1 mm wide and with a diffuse, racemose or dichasial inflorescence
1 Perennial herbs; inflorescence with dichasial branching (a compound cyme); plants with basal offshoots with decussate leaves 2-4 mm long and 0.2-0.4 mm wide; [endemic in Florida scrub in Highlands and Polk counties, FL]