Burke: Pyrola chlorantha vs. Pyrola americana

	Pyrola chlorantha	Pyrola americana
	green-flower wintergreen
Habit	Perennial, glabrous herbs from slender rhizomes, the flowering stems usually single, 1-2 dm. tall, usually with 1-several leaves at the base; sterile stems leafy.
Leaves	Leaves somewhat leathery, long-petiolate, pale green above and deeper green beneath, the blade elliptic to oblong-obovate, 1-2.5 cm. long, with small, rounded teeth.
Flowers	Racemes 2- to 8-flowered, pedicles 3-8 mm. long, with linear-lanceolate bracts nearly as long; flowers 9-13 mm. broad, pale yellowish; calyx lobes 5, rounded; petals 5, 5-6 mm. long; stamens 10; anthers with straight tubes and terminal pores; style curved, 3-6 mm. long; ovary superior.
Fruits	Capsule 5-lobed.

	Pyrola chlorantha	Pyrola americana
Flowering time	June-August
Habitat	Chiefly in coniferous forests at moderate to mid-elevations, usually where moist.
Distribution	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across northern U.S. and Canada to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Origin	Native
Conservation status	Not of concern
Sibling taxa	P. aphylla, P. asarifolia, P. dentata, P. elliptica, P. minor, P. picta	P. aphylla, P. asarifolia, P. chlorantha, P. dentata, P. elliptica, P. minor, P. picta
Web links	Local floras: BC, OR, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Pyrola chlorantha

Pyrola americana

green-flower wintergreen

Habit

Perennial, glabrous herbs from slender rhizomes, the flowering stems usually single, 1-2 dm. tall, usually with 1-several leaves at the base; sterile stems leafy.

Leaves

Leaves somewhat leathery, long-petiolate, pale green above and deeper green beneath, the blade elliptic to oblong-obovate, 1-2.5 cm. long, with small, rounded teeth.

Flowers

Racemes 2- to 8-flowered, pedicles 3-8 mm. long, with linear-lanceolate bracts nearly as long;

flowers 9-13 mm. broad, pale yellowish;

calyx lobes 5, rounded;

petals 5, 5-6 mm. long;

stamens 10;

anthers with straight tubes and terminal pores;

style curved, 3-6 mm. long;

ovary superior.

Fruits

Capsule 5-lobed.

Pyrola chlorantha

Pyrola americana

Flowering time

June-August

Habitat

Chiefly in coniferous forests at moderate to mid-elevations, usually where moist.

Distribution

Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains and across northern U.S. and Canada to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa

P. aphylla, P. asarifolia, P. dentata, P. elliptica, P. minor, P. picta