About Hypericum densiflorum Pursh
Hypericum densiflorum Pursh is a densely branched shrub with coppery bark, reaching a height of 0.5–2 m (1 ft 8 in – 6 ft 7 in). Its numerous slender branches are slightly angled, and its branchlets have two edges. The branches produce linear leaves and axillary fascicles; individual leaves measure 1–2 in (25–51 mm) long and 0.15–0.3 in (3.8–7.6 mm) wide. This species has yellow flowers that are 1.2–1.7 cm (0.47–0.67 in) wide, borne in crowded compound cymes. Its firm, narrow sepals are 2–5 mm (0.079–0.197 in) long, and its pedicels are 0.1–0.4 in (2.5–10.2 mm) long. The plant's capsules range in shape from lanceolate to slenderly conic, containing three carpels and three styles. The capsules measure 3.5–6.5 mm (0.14–0.26 in) long and 1.5–3 mm (0.059–0.118 in) thick. Hypericum densiflorum flowers from July to September, and produces fruit from early October through the end of autumn.
Hypericum densiflorum grows on acidic soils in moist and wet environments, including stream, pond, and lake banks, seepage slopes, and wet meadows. It prefers sandy clay loam, and grows at elevations from sea level up to 1,000 m (3,300 ft). This shrub is found throughout the eastern and southern United States, ranging as far west as Texas and as far north as New York.
Ecologically, Hypericum densiflorum is classified as a pollinator plant that supports and attracts bees.
