Pyrola

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  P. minor

  1a. Style short and straight [Fig. 618], 0.5–1.5 mm long; corollas actinomorphic; stigmas broadly peltate, 5-lobed, without a subterminal collar; anthers connivent around the style, 0.8–1.4 mm long; petals 3–5 mm long; scape 5–15 cm tall
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  1b. Style elongate and strongly down-curved [Fig. 617], (4–) 6–10 mm long; corollas weakly zygomorphic; stigmas capitate, with a subterminal collar; anthers not connivent around the style, (1.7–) 2–4.1 mm long; petals 4–10 mm long; scape 10–30 cm tall
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    P. chlorantha

    2a. Leaf blades 10–30 (–40) mm long, usually shorter than the petiole; anther tubes (0.6–) 0.7–1.1 mm long; petals green-white
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    2b. Leaf blades 25–70 mm long, ± equaling to exceeding the length of the petiole; anther tubes 0.1–0.4 (–0.6) mm long; petals white or pink to pale purple
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      P. elliptica

      3a. Leaf blades elliptic or oblong to obovate, usually longer than the petiole; sepals as wide as or wider than long, ca. 25% as long as the petals; bracts below the flowers numbering 0–2 (–3), narrow-lanceolate, not clasping the scape
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      3b. Leaf blades broad-elliptic to reniform, usually ± equaling the length of the petiole; sepals longer than wide, ca. 35–60% as long as the petals; bracts below the flowers numbering 1–5, broad-lanceolate, clasping the scape
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        P. americana

        4a. Petals white; sepals oblong or ovate-oblong, not overlapping at the base, firm, 
3- to 5-nerved
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        P. asarifolia

        4b. Petals pink to pale purple; sepals triangular, overlapping at the base [Fig. 617], thin, nerveless or obscurely nerved

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 Show photos of:   Each photo represents one species in this genus.