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

sandhill St. Johnswort, smooth-bark 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, straggling and rooting, forming low, rounded clumps or mats, 1–5 dm.
Stems

internodes 4-angled.

internodes (4-) or 6-lined at first, then terete.

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 linear-subulate, 13–25 × 0.5–0.8 mm, base articulated, parallel, margins revolute, apex rounded to retuse, midrib unbranched.

Inflorescences

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

narrowly pyramidal, 1–3-flowered, with 1–3(–5)-flowered dichasia from to 5 proximal nodes, without additional flowering branches;

pedicels 0.5 mm.

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.

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.

Capsules

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

ovoid, 3–4 × 2–2.5 mm.

Seeds

0.5–0.6 mm;

testa linear-scalariform.

carinate, 0.7 mm;

testa not seen.

2n

= 16.

Hypericum anagalloides

Hypericum lloydii

Phenology Flowering spring–late summer (May–Sep). Flowering summer (Aug).
Habitat Bogs, ditches, lake and stream margins, meadows, other damp habitats Dry habitats (pine woods, granite outcrops, roadside embankments), inner coastal plain and foothills
Elevation 50–2700 m [160–8900 ft] 100–300 m [300–1000 ft]
Distribution
map from FNA
AZ; CA; ID; MT; NV; OR; UT; WA; BC; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
map from FNA
AL; GA; NC; SC
[WildflowerSearch map]
[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.)

The habit, leaf shape, and drier habitats distinguish Hypericum lloydii from H. galioides.

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

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. 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. 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 H. galioides var. lloydii
Name authority Chamisso & Schlechtendal: Linnaea 3: 127. (1828) (Svenson) W. P. Adams: Contr. Gray Herb. 189: 32. (1962)
Source FNA vol. 6, p. 95. Treatment author: Norman K. B. Robson. FNA vol. 6, p. 79. Treatment author: Norman K. B. Robson.
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