Burke: Erysimum repandum vs. Erysimum pallasii

	Erysimum repandum	Erysimum pallasii
	spreading wallflower
Habit	Simple to freely-branched annual, the stem 2-5 dm. tall, somewhat grayish.
Leaves	Basal leaves several, lanceolate to oblanceolate, up to 15 cm. long and 12 mm. broad, wavy-toothed to wavy-margined; cauline leaves similar, reduced upward, sometimes becoming entire.
Flowers	Flowers rather showy, in crowded, bractless racemes; pedicles stout, 2-4 mm. long, almost as thick as the siliques; sepals 4, the outer 2 saccate at the base; petals 4, light yellow, 6-9 mm. long, very slenderly clawed; stamens 6; style 1 mm. long, stigma bi-lobed.
Fruits	Siliques spreading to ascending, curved, rigid, 6-8 cm. long and about 1.5 mm. thick, nearly quadrangular, constricted between the seeds; seeds in 1 series, wingless.

	Erysimum repandum	Erysimum pallasii
Flowering time	April-June
Habitat	Wasteland in dry areas, plains and lower mountains.
Distribution	Occurring east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east across much of North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	[BONAP county map]
Origin	Introduced from Eurasia
Conservation status	Not of concern
Sibling taxa	E. arenicola, E. capitatum, E. cheiranthoides, E. cheiri, E. inconspicuum, E. occidentale	E. arenicola, E. capitatum, E. cheiranthoides, E. cheiri, E. inconspicuum, E. occidentale, E. repandum
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, 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	Local floras: BC Local Web sites: PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Erysimum repandum

Erysimum pallasii

spreading wallflower

Habit

Simple to freely-branched annual, the stem 2-5 dm. tall, somewhat grayish.

Leaves

Basal leaves several, lanceolate to oblanceolate, up to 15 cm. long and 12 mm. broad, wavy-toothed to wavy-margined;

cauline leaves similar, reduced upward, sometimes becoming entire.

Flowers

Flowers rather showy, in crowded, bractless racemes; pedicles stout, 2-4 mm. long, almost as thick as the siliques;

sepals 4, the outer 2 saccate at the base;

petals 4, light yellow, 6-9 mm. long, very slenderly clawed;

stamens 6;

style 1 mm. long, stigma bi-lobed.

Fruits

Siliques spreading to ascending, curved, rigid, 6-8 cm. long and about 1.5 mm. thick, nearly quadrangular, constricted between the seeds;

seeds in 1 series, wingless.

Erysimum repandum

Erysimum pallasii

Flowering time

April-June

Habitat

Wasteland in dry areas, plains and lower mountains.

Distribution

Occurring east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

Origin

Introduced from Eurasia

Conservation status

Not of concern

Sibling taxa

E. arenicola, E. capitatum, E. cheiranthoides, E. cheiri, E. inconspicuum, E. occidentale