Flora of North America species comparison

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Hypericum buckleyi

mountain St. John's wort
Habit Shrubs, decumbent, spreading and rooting, wiry, branches ascending to erect, forming compact mats, 0.5–4.5 dm.
Stems

internodes 4-lined.
Leaf

blades oblong or elliptic to obovate, 4–25 × 2–12 mm, base not articulated, cuneate, margins plane, apex rounded, midrib with 2–4 pairs of branches.
Inflorescences

1(–5)-flowered.
Flowers

20–25 mm diam.;

sepals persistent, not enclosing capsule, 5, broadly elliptic to elliptic-spatulate or obovate, subequal, 4–5 × 2.5–3 mm;

petals 5, golden yellow, oblanceolate, 6–10.5 mm;

stamens persistent, 100;

ovary 3-merous.
Capsules

ovoid to ovoid-cylindric, 8–12 × 5 mm.
Seeds

narrowly to broadly carinate, 1.5–2 mm;

testa finely foveolate-reticulate.

Hypericum buckleyi
Phenology Flowering early–mid summer (Jun–Jul).
Habitat Seepage areas, moist rock crevices, ditches, road embankments
Elevation 900–1600 m (3000–5200 ft)
Distribution
from FNA
GA; NC; SC
[BONAP county map]
Discussion

Hypericum buckleyi is found throughout the southern Appalachian Mountains.

The decumbent habit and persistent sepals and stamens distinguish Hypericum buckleyi from its nearest relative, H. prolificum.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 6, p. 81.
Parent taxa Hypericaceae > Hypericum > sect. Myriandra
Sibling taxa
H. adpressum, H. anagalloides, H. apocynifolium, H. ascyron, H. boreale, H. brachyphyllum, H. canadense, H. canariense, H. chapmanii, H. cistifolium, H. concinnum, H. crux-andreae, H. cumulicola, H. densiflorum, H. denticulatum, H. dolabriforme, H. drummondii, H. edisonianum, H. ellipticum, H. erythreae, H. fasciculatum, H. frondosum, H. galioides, H. gentianoides, H. graveolens, H. gymnanthum, H. harperi, H. hypericoides, H. kalmianum, H. lissophloeus, H. lloydii, H. lobocarpum, H. maculatum, H. majus, H. microsepalum, H. mutilum, H. myrtifolium, H. nitidum, H. nudiflorum, H. paucifolium, H. perforatum, H. prolificum, H. pseudomaculatum, H. punctatum, H. radfordiorum, H. scouleri, H. setosum, H. sphaerocarpum, H. suffruticosum, H. tenuifolium, H. tetrapetalum, H. virgatum, H. ×mitchellianum
Name authority M. A. Curtis: Amer. J. Sci. Arts 44: 80. (1843)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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