The World Flora Online

Herbs perennial, 30–120 cm tall. Rootstock brown or purple-brown, robust, usually fusiform, rarely terete, cross section yellow-white or purple. Stems erect, angular, glabrous, or base pilose or sparsely glandular hairy. Radical leaves: stipules brown, membranous, glabrous or abaxially sparsely glandular hairy; petiole long, glabrous or sparsely glandular, base sheathing and imbricate, sometimes sparsely glandular hairy; leaf blade with 4–6 pairs of leaflets; leaflets petiolulate, green on both surfaces, ovate, oblong-ovate, fasciated oblong, or fasciated lanceolate, 1–7 × 0.5–3 cm, base cordate to broadly cuneate, margin coarsely obtusely or rarely acutely serrate, both surfaces glabrous or abaxially sparsely pilose; cauline leaves: stipules large, semiovate, herbaceous, margin acutely serrate; leaflets shortly petiolulate or sessile, oblong to oblong-lanceolate, base subcordate to rounded, apex acute. Inflorescences erect, spicate, ellipsoid, cylindric, or ovoid, usually 1–6 × 0.5–1 cm, flowering from apex to base; rachis glabrous or occasionally sparsely glandular hairy; bracts lanceolate, shorter than or nearly equaling sepals, membranous, abaxially pilose, apex acuminate to caudate. Sepals 4, purple, red, pink, or white, elliptic to broadly ovate, abaxially pilose, with faint longitudinal midvein, usually with shortly acute apex. Stamens 4; filaments filiform, 0.5–1 × as long as sepals, exserted beyond them or not. Ovary glabrous or puberulous; stigma dilated, discoid, margin fimbriate-papillate. Fruiting hypanthium longitudinally 4-ribbed. Fl. and fr. Jul–Nov.

Source: [
• 1
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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.

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• 2
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Much like no. 1 [Sanguisorba canadensis L.]; stems to 1 m; spikes thickly ellipsoid to short-cylindric, 1–3 cm; stamens equaling or shorter than the purple-brown sep, with filiform red filaments; 2n=28, 56. Native of Eurasia, rarely escaped from cult.

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• 4
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30–100 cm hoch. Blätter einfach gefiedert, mit 7–15 Fiederpaaren. Teilblätter 5–10 mm lang gestielt, herzeiförmig, grob gezähnt, oberseits grasgrün, glänzend, unterseits graugrün. Blüten dunkel-braunrot, in dichten, kugeligen bis länglich-eiförmige

Source: [
• 3
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6–9. Feuchte Wiesen, Flachmoore, kollin-subalpin(-alpin). CH.

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• 3
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SELECTED REFERENCE Nordborg, G. 1963. Studies in Sanguisorba officinalis L. Bot. Not. 116: 267–288.

Source: [
• 2
].