Hypericum lloydii |
Hypericum erythreae |
|
---|---|---|
sandhill St. Johnswort |
sparse-leaf St. Johnswort |
|
Habit | Shrubs, decumbent, straggling and rooting, forming low, rounded clumps or mats, 1–5 dm. | Herbs perennial, erect to ascending, branching at ± aerenchymatous base and in inflorescence, 3–12 dm. |
Stems | internodes (4-) or 6-lined at first, then terete. |
internodes 4-lined. |
Leaves | blades linear-subulate, 13–25 × 0.5–0.8 mm, base articulated, parallel, margins revolute, apex rounded to retuse, midrib unbranched. |
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 | narrowly pyramidal, 1–3-flowered, with 1–3(–5)-flowered dichasia from to 5 proximal nodes, without additional flowering branches; pedicels 0.5 mm. |
corymbiform, to 30-flowered, branching mostly dichasial. |
Flowers | 12–14 mm diam.; sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–7 × 0.5–0.8 mm; petals 5, golden yellow, oblanceolate-oblong, 5–7.5 mm; stamens deciduous, 100; ovary 3-merous. |
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 × 2–2.5 mm. |
ovoid, 3–4.5 mm. |
Seeds | carinate, 0.7 mm; testa not seen. |
0.4–0.7 mm; testa reticulate. |
Hypericum lloydii |
Hypericum erythreae |
|
Phenology | Flowering summer (Aug). | Flowering mid summer–fall (Jul–Oct). |
Habitat | Dry habitats (pine woods, granite outcrops, roadside embankments), inner coastal plain and foothills | Bogs, ditches, coastal plain |
Elevation | 100–300 m (300–1000 ft) | 0–300 m (0–1000 ft) |
Distribution |
AL; GA; NC; SC
|
GA; SC |
Discussion | The habit, leaf shape, and drier habitats distinguish Hypericum lloydii from H. galioides. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 6, p. 79. | FNA vol. 6, p. 90. |
Parent taxa | Hypericaceae > Hypericum > sect. Myriandra | Hypericaceae > Hypericum > sect. Brathys |
Sibling taxa | ||
Synonyms | H. galioides var. lloydii | Brathys erythreae |
Name authority | (Svenson) W. P. Adams: Contr. Gray Herb. 189: 32. (1962) | (Spach) Steudel: Nomencl. Bot. ed. 2, 1: 787. (1840) |
Web links |