Hypericum harperi |
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Habit | Herbs perennial, semiaquatic or aquatic, erect, branching with long-creeping rhizomes at aerenchymatous base and from mid and distal nodes, 3–10 dm. |
Stems | internodes 4-lined. |
Leaves | ascending to deflexed, sessile; blade narrowly oblong-elliptic (proximal) or lanceolate to linear-lanceolate, 10–30 × 3–8 mm, mostly longer than internodes, not or scarcely smaller distally, leathery, margins plane, apex acute, basal or near-basal veins 1–3(–5), midrib with 0–2 pairs of branches. |
Inflorescences | broadly pyramidal to subcorymbiform, 1(–30)-flowered, branching mostly dichasial. |
Flowers | 4–10 mm diam.; sepals lanceolate, usually unequal, 3–5 × 0.8–1 mm, margins sometimes ciliate, not setulose-ciliate, apex acute to acuminate; petals orange-yellow, obovate, 6–10 mm; stamens 50–80, irregularly grouped; styles 2–4 mm; stigmas capitate. |
Capsules | ellipsoid to rostrate-subglobose, 3–4.5 × 2–2.5 mm. |
Seeds | 0.5–0.6(–0.7) mm; testa obscurely linear-reticulate to irregularly reticulate. |
2n | = 24. |
Hypericum harperi |
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Phenology | Flowering mid–late summer (Jul–Sep). |
Habitat | Open Taxodium swamps, wet pine barrens |
Elevation | 0–200 m (0–700 ft) |
Distribution |
AL; FL; GA; SC |
Source | FNA vol. 6, p. 90. |
Parent taxa | |
Sibling taxa | |
Name authority | R. Keller: Bot. Jahrb. Syst. 58: 198. (1923) |
Web links |