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liverleaf wintergreen, pink wintergreen

alpine pyrola, bog wintergreen

Habit Plants 10–45 cm; rhizomatous.
Leaves

ovate, elliptic; round or reniform, 15–75 × 10–55 mm, not mottled, abaxially dull and light green to purplish, adaxially shiny and dark green; leathery;

margins entire or crenulate or denticulate;

tips obtuse to acute;

petioles 10–80 mm, glabrous.

round; ovate, elliptic or reniform;

margins entire to crenulate.

Inflorescences

1 per stem, 4–29-flowered;

bracts ovate to oblong-ovate, 3–15 × 1–3.5 mm.

bracts 1–1.5 × length of subtending pedicels.

Pedicels

3–12 mm.

Flowers

sepals triangular to triangular-ovate, 1.5–5.5 × 1–3 mm; length > width, green or pinkish with thin white to pinkish margins;

margins entire to denticulate;

tips acute;

corollas spreading;

petals obovate to round, 4.5–9.0 × 3–6 mm, white to pink or purplish red;

margins entire;

stamens 4–7.5 mm;

anthers 2–4 mm;

styles exserted; bent sideways to downward, 7–10 mm;

stigmas ~1 mm wide; without subtending ring of hairs.

sepals 1.5–4 mm;

anthers 2–3.4 mm.

Fruits

depressed-globose, 4–8 mm.

2n

=46.

Pyrola asarifolia

Pyrola asarifolia ssp. asarifolia

Distribution
[WildflowerSearch map]
[BONAP county map]
[BONAP county map]
Discussion

Asia, North America. 3 subspecies; 2 subspecies treated in Flora.

Moist forests, bogs, streambanks. Flowering Jun–Aug. 0–1900 m. BR, BW, Casc, Est, WV. CA, ID, NV, WA; north to AK, east to Newfoundland, southeast to NM; Asia. Native.

The range of P. a. ssp. bracteata overlaps completely with that of P. a. ssp. asarifolia. Whether the slight morphological differences between these two subspecies are environmentally induced may be worthy of future research.

Source Flora of Oregon, volume 2, page 634
Stephen Meyers
Flora of Oregon, volume 2, page 634
Stephen Meyers
Sibling taxa
P. aphylla, P. chlorantha, P. minor, P. picta
P. asarifolia ssp. bracteata
Subordinate taxa
P. asarifolia ssp. asarifolia, P. asarifolia ssp. bracteata
Synonyms Pyrola asarifolia var. asarifolia, Pyrola asarifolia var. incarnata, Pyrola asarifolia var. purpurea, Pyrola uliginosa
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