Difference between revisions of "Sanguisorba officinalis"
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|name=Poterium officinale | |name=Poterium officinale | ||
|authority=(Linnaeus) A. Gray | |authority=(Linnaeus) A. Gray | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Sanguisorba microcephala | |name=Sanguisorba microcephala | ||
|authority=C. Presl | |authority=C. Presl | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=S. officinalis subsp. microcephala | |name=S. officinalis subsp. microcephala | ||
|authority=(C. Presl) Calder & Roy L. Taylor | |authority=(C. Presl) Calder & Roy L. Taylor | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Agrimonieae;Sanguisorba;Sanguisorba officinalis | |hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Agrimonieae;Sanguisorba;Sanguisorba officinalis | ||
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name=Sanguisorba officinalis | name=Sanguisorba officinalis | ||
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|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
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|publication year=1753 | |publication year=1753 | ||
|special status= | |special status= | ||
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|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Agrimonieae | |tribe=Rosaceae tribe Agrimonieae | ||
Latest revision as of 23:57, 5 November 2020
Plants 3–20 dm. Leaves: blade 5–40 cm, leaflets (7–)11–15, orbiculate to ovate, to 7 × 5 cm, lengths 1.5–2.5 times widths, base cuneate, truncate, rounded, or cordate, without stipels. Spikes 50–250-flowered, ellipsoid or ovoid, main 1.5–3 cm, flowering basipetal. Flowers: calyx lobes dark purple, midveins not thickened distally; stamen lengths ± equal to hypanthium lobes, filaments 1.5–2.5 mm, filiform throughout. 2n = 56, 112.
Phenology: Flowering (Jun–)Jul–Sep; fruiting Aug–Oct.
Habitat: Muskeg, fens, bogs, swamps, tundra, stream banks (especially in ice-scoured areas), often on serpentine rock
Elevation: 0–1600 m
Distribution
B.C., N.W.T., N.S., Yukon, Alaska, Calif., Maine, Mich., Oreg., Pa., Wash., n Europe, n Asia.
Discussion
Occurrences of Sanguisorba officinalis in eastern North America represent introductions from Eurasia; the species is native in western North America. Near the southern end of its distribution in western North America, the species is generally found over serpentine substrates. There seem to be no consistent differences upon which to base a taxonomic distinction at any level between native northwestern North American plants (S. microcephala) and Eurasian S. officinalis in the strict sense.