Hypericum lloydii |
Hypericum fasciculatum |
|
---|---|---|
sandhill St. Johnswort |
peelbark St. Johnswort, sandweed |
|
Habit | Shrubs, decumbent, straggling and rooting, forming low, rounded clumps or mats, 1–5 dm. | Shrubs, erect, much-branched distally, bushy, not treelike, usually forming mounds, to 15(–30) dm, bark thick, smooth, thin-corky and spongy, exfoliating in thin, papery sheets or plates. |
Stems | internodes (4-) or 6-lined at first, then terete. |
internodes 6-lined at first, soon 2-winged, then terete, not glaucous. |
Leaf | blades linear-subulate, 13–25 × 0.5–0.8 mm, base articulated, parallel, margins revolute, apex rounded to retuse, midrib unbranched. |
blades linear-subulate, 8–20 × 0.7–1 mm, not glaucous, base articulated, parallel, margins revolute, apex sometimes slightly broadened, midrib unbranched. |
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. |
rounded-pyramidal to corymbiform, sometimes intercalary as result of resumed vegetative growth, (3–)7–32-flowered, sometimes with single flowers or 3–5-flowered dichasia from to 3 proximal nodes. |
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. |
13–16 mm diam.; sepals deciduous, not enclosing capsule, 5, linear-subulate, unequal, (3–)4.5–8(–10) × 0.5 mm, not glaucous; petals 5, bright yellow, obovate-spatulate, 6–9 mm; stamens deciduous, 70–100; ovary 3-merous; styles 2.5–4 mm. |
Capsules | ovoid, 3–4 × 2–2.5 mm. |
± narrowly ovoid-conic to ovoid-ellipsoid, 5.5 × 2.5–3 mm. |
Seeds | carinate, 0.7 mm; testa not seen. |
not carinate, 0.4 mm; testa finely foveolate-reticulate. |
2n | = 18. |
|
Hypericum lloydii |
Hypericum fasciculatum |
|
Phenology | Flowering summer (Aug). | Flowering spring–fall (Apr–Nov). |
Habitat | Dry habitats (pine woods, granite outcrops, roadside embankments), inner coastal plain and foothills | Ponds and lake margins, marshes, ditches, coastal plain |
Elevation | 100–300 m (300–1000 ft) | 0–500 m (0–1600 ft) |
Distribution |
AL; GA; NC; SC
|
AL; FL; GA; LA; MS; NC; 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.) |
The thick, often spongy, bark, relatively long axillary leaf clusters, paired leaf grooves flanking the midrib abaxially, broader inflorescence, and broader capsules distinguish Hypericum fasciculatum (and H. chapmanii) from H. nitidum and its relatives. Hypericum aspalathoides Willdenow is an illegitimate name for H. fasciculatum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 6, p. 79. | FNA vol. 6, p. 81. |
Parent taxa | Hypericaceae > Hypericum > sect. Myriandra | Hypericaceae > Hypericum > sect. Myriandra |
Sibling taxa | ||
Synonyms | H. galioides var. lloydii | H. fasciculatum var. aspalathoides, H. fulgidum, H. galioides var. fasciculatum |
Name authority | (Svenson) W. P. Adams: Contr. Gray Herb. 189: 32. (1962) | Lamarck: in J. Lamarck et al., Encycl. 4: 160. (1797) |
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