Hypericum erythreae |
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sparse-leaf St. Johnswort |
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Habit | Herbs perennial, erect to ascending, branching at ± aerenchymatous base and in inflorescence, 3–12 dm. |
Stems | internodes 4-lined. |
Leaves | ascending to appressed, sessile; blade usually lanceolate, rarely elliptic to ovate, 5–20(–24) × 5–15 mm, shorter than internodes, smaller distally, leathery, margins plane, apex acute, gland-dotted, less conspicuously adaxially, basal veins 1–5, midrib with 2–3 pairs of branches. |
Inflorescences | corymbiform, to 30-flowered, branching mostly dichasial. |
Flowers | 5–13 mm diam.; sepals lanceolate, unequal, 3.5–4.2(–4.8) mm, margins sometimes ciliate, not setulose-ciliate, apex acute to subacuminate; petals orange-yellow, ± obovate, 5–10 mm; stamens 50–80, filaments basally connate; styles 2–4 mm; stigmas clavate. |
Capsules | ovoid, 3–4.5 mm. |
Seeds | 0.4–0.7 mm; testa reticulate. |
Hypericum erythreae |
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Phenology | Flowering mid summer–fall (Jul–Oct). |
Habitat | Bogs, ditches, coastal plain |
Elevation | 0–300 m (0–1000 ft) |
Distribution |
GA; SC |
Source | FNA vol. 6, p. 90. |
Parent taxa | |
Sibling taxa | |
Synonyms | Brathys erythreae |
Name authority | (Spach) Steudel: Nomencl. Bot. ed. 2, 1: 787. (1840) |
Web links |