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bog john's-wort, bog St. John's-wort, creeping St. John's-wort, tinker's penny

mountain St. John's wort

Habit Herbs annual or perennial, decumbent to ascending, with diffusely branching and rooting base, forming loose mats, not usually branched distally, 0.3–1.5 dm. Shrubs, decumbent, spreading and rooting, wiry, branches ascending to erect, forming compact mats, 0.5–4.5 dm.
Stems

internodes 4-angled.

internodes 4-lined.

Leaves

spreading, sessile or subamplexicaul;

blade ovate or orbiculate to elliptic or oblanceolate (proximal) or oblong (distal), 3–13 × 1.5–8.5 mm, papery to membranous, margins plane, apex rounded, basal veins 3–5(–7), distally looped, midrib unbranched.

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

loosely corymbiform, 1–14-flowered, branching mostly dichasial.

1(–5)-flowered.

Flowers

3–5(–8) mm diam.;

sepals usually narrowly elliptic-oblong to oblanceolate-spatulate, rarely obovate, unequal, 2–4 × 0.9–2 mm, margins sometimes ciliate, not setulose-ciliate, apex subacute to rounded;

petals golden yellow to salmon-orange, oblanceolate, (1.7–)3.5–5 mm;

stamens (5–)12–15(–25), separate or obscurely 3-fascicled;

styles 0.5–2 mm;

stigmas scarcely capitate.

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

ellipsoid to cylindric or subglobose, 2.5–5 × 1.7–2.5 mm.

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

Seeds

0.5–0.6 mm;

testa linear-scalariform.

narrowly to broadly carinate, 1.5–2 mm;

testa finely foveolate-reticulate.

2n

= 16.

Hypericum anagalloides

Hypericum buckleyi

Phenology Flowering spring–late summer (May–Sep). Flowering early–mid summer (Jun–Jul).
Habitat Bogs, ditches, lake and stream margins, meadows, other damp habitats Seepage areas, moist rock crevices, ditches, road embankments
Elevation 50–2700 m [160–8900 ft] 900–1600 m [3000–5200 ft]
Distribution
from FNA
AZ; CA; ID; MT; NV; OR; UT; WA; BC; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
GA; NC; SC
[BONAP county map]
Discussion

As reflected in the synonymy, Hypericum anagalloides is variable; none of the variations merits taxonomic recognition.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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. 95. FNA vol. 6, p. 81.
Parent taxa Hypericaceae > Hypericum > sect. Brathys Hypericaceae > Hypericum > sect. Myriandra
Sibling taxa
H. adpressum, H. apocynifolium, H. ascyron, H. boreale, H. brachyphyllum, H. buckleyi, 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
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
Synonyms H. anagalloides var. calicifolium, H. anagalloides var. cymosum, H. anagalloides var. nevadense, H. anagalloides var. pumilum, H. anagalloides var. ramigerum, H. anagalloides var. undulatum, H. bryophytum, H. tapetoides
Name authority Chamisso & Schlechtendal: Linnaea 3: 127. (1828) M. A. Curtis: Amer. J. Sci. Arts 44: 80. (1843)
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