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FNA | Family List | FNA Vol. 6 | Hypericaceae | Hypericum

39b. Hypericum mutilum Linnaeus subsp. latisepalum (Fernald) N. Robson, Bull. Brit. Mus. (Nat. Hist.), Bot. 20: 119. 1990.

Hypericum mutilum var. latisepalum Fernald, Rhodora 38: 372. 1936

Stems: apical internode usually longer than adjacent one. Leaf blades broadly ovate or broadly oblong-ovate to suborbiculate. Inflorescences: branching from 1–4(–6) nodes, branches diffuse and repeatedly monochasial distally. Sepals ± imbricate, broader beyond middle.

Flowering late spring–early summer (Apr–Jun). Ditches, marshes, lake margins, desiccated temporary pools; 0–200 m; Fla., Ga., N.J., S.C., Tex.

Fernald recorded subsp. latisepalum from New Jersey; D. H. Webb (1980) did not record it north of South Carolina. No specimens have been seen from farther north than Georgia, where it appears to tend morphologically toward subsp. mutilum.


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