William Preston Adams

Hypericum cumulicola is a rare species of flowering plant in the family Hypericaceae known by the common name highlands scrub hypericum, or highlands scrub St. John's wort. It is endemic to Florida, where it is threatened by habitat loss and degradation. It is a federally listed endangered species of the United States. This is a perennial herb with wiry, sometimes woody, stems growing from a taproot and reaching about 60 centimeters (24 in) in maximum length. The leaves have slightly succulent blades which are linear in shape and measure just a few millimeters long. Flowers occur on the upper

Hypericum lloydii, known as Lloyd's St. John's-wort or sandhill St. John's wort, is a species of flowering plant in the St. John's wort family (Hypericaceae). It is native to the Southeastern United States where it is found primarily in the lower Piedmont and inner Coastal Plain. Its natural habitat is in dry open areas such as sandhills or granite flatrocks. Hypericum lloydii is a low straggling mat-forming shrub. Its leaves are narrowly linear, reaching up to 25 mm (1 in) long. It produces relatively small yellow flowers, 12–14 mm (0.5–0.6 in) across, in the summer.

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