Hypericum anagalloides |
Hypericum mutilum |
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bog john's-wort, bog St. John's-wort, creeping St. John's-wort, tinker's penny |
dwarf St. John's-wort, small Canadian St. John's-wort, small flower st john's wort |
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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. | Herbs annual or perennial, usually erect, sometimes decumbent and rooting, basal branches sometimes present, usually with to 10 pairs of spreading branches distal to middle, 0.5–8 dm. | ||||
Stems | internodes 4-angled. |
internodes 4-angled. |
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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. |
spreading, sessile or amplexicaul; blade paler abaxially, ovate, elliptic, or elliptic-oblong (proximal), ovate or suborbiculate to elliptic or lanceolate (mid and distal), 3–27(–40) × 1–15 mm, papery to membranous, margins plane, apex obtuse to rounded, basal veins 3–5, midrib with to 3 pairs of branches. |
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Inflorescences | loosely corymbiform, 1–14-flowered, branching mostly dichasial. |
cylindric, 5–60-flowered, branching mostly dichasial; bracts linear-subulate. |
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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. |
3–5 mm diam.; sepals lanceolate to linear-lanceolate or elliptic-oblong to oblanceolate, equal or unequal, 2–4.5 × 0.6–1.5 mm, margins sometimes ciliate, not setulose-ciliate, apex usually acute to apiculate, sometimes obtuse to rounded; petals pale yellow, oblong, 1.7–3.5 mm; stamens 5–16, scarcely grouped; styles 0.5 mm; stigmas broadly capitate. |
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Capsules | ellipsoid to cylindric or subglobose, 2.5–5 × 1.7–2.5 mm. |
narrowly ovoid to cylindric-ellipsoid, 2–5 × 1.6–2.4 mm, usually broadest at or near middle. |
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Seeds | 0.5–0.6 mm; testa linear-scalariform. |
0.4–0.7 mm; testa finely linear-scalariform. |
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2n | = 16. |
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Hypericum anagalloides |
Hypericum mutilum |
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Phenology | Flowering spring–late summer (May–Sep). | |||||
Habitat | Bogs, ditches, lake and stream margins, meadows, other damp habitats | |||||
Elevation | 50–2700 m [160–8900 ft] | |||||
Distribution |
AZ; CA; ID; MT; NV; OR; UT; WA; BC; Mexico (Baja California)
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AL; AR; CA; CO; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MO; MS; NC; NE; NH; NJ; NY; OH; OK; OR; PA; RI; SC; TN; TX; UT; VA; VT; WA; WI; WV; BC; NB; NS; ON; QC; SK [Introduced in w North America]
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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.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 6, p. 95. | FNA vol. 6, p. 93. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
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 | Sarothra mutila | ||||
Name authority | Chamisso & Schlechtendal: Linnaea 3: 127. (1828) | Linnaeus: Sp. Pl. 2: 787. (1753) | ||||
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