Burke: Erythranthe primuloides vs. Erythranthe dentata

	Erythranthe primuloides	Erythranthe dentata
	primrose monkey-flower	coastal monkey-flower, tooth-leaved monkey-flower
Habit	Mat-forming perennial from long, thin rhizomes, the stem lax, up to 6 cm. long.	Perennial from well-developed, shallow rhizomes, the stems ascending or loosely erect, 1-4 dm. tall, the herbage with stiff, white hairs.
Leaves	Leaves opposite, crowded near the ground, short-hairy abaxially (underside), viscid to glabrous adaxially (upperside); leaves oblanceolate, sessile, nearly entire, 3-nerved from the base, 7-25 mm. long and 3-11 mm. wide.	Leaves opposite, serrate, pinnately veined, but the principle lateral veins arising below the middle; leaf blades lance-elliptic to ovate, acute, the lower short-petiolate, the upper sessile, 2-7 cm. long and 1-3.5 cm. wide.
Flowers	Flowers solitary on slender pedicels up to 10 cm. long arising from the leaf clusters; calyx narrow, 4-8 mm. long, mostly glabrous, the 5 teeth short, equal; corolla yellow, often dotted with maroon, 1-2 cm. long, scarcely bilabiate, the 5 lobes spreading, shallowly notched, the throat somewhat flaring; stamens 4.	Flowers few, solitary in the leaf axils, on long pedicels; calyx 8-16 mm. long, 5-angled with spreading hairs along the ribs, the 5 teeth acute, 2-5 mm. long; corolla 2.5-4 cm. long, bilabiate, yellow, the long, strongly-flaring throat often red-dotted, the 5 well-developed lobes sometimes washed with reddish-purple; stamens 4.
Fruit	Capsule.	Capsule.

	Erythranthe primuloides	Erythranthe dentata
Flowering time	June-August	May-September
Habitat	Wet meadows and boggy areas at middle to high elevations in the mountains.	Stream banks and other moist places to wet places from the lowlands to middle elevations in the mountains.
Distribution	Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana, Utah, Arizona, and New Mexico. [WildflowerSearch map]	Occurring west of the Cascades crest in Washington; southwestern British Columbia to northern California. [WildflowerSearch map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	E. alsinoides, E. ampliata, E. arvensis, E. breviflora, E. breweri, E. caespitosa, E. cardinalis, E. decora, E. dentata, E. floribunda, E. grandis, E. guttata, E. inflatula, E. jungermannioides, E. lewisii, E. microphylla, E. moschata, E. nasuta, E. patula, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis	E. alsinoides, E. ampliata, E. arvensis, E. breviflora, E. breweri, E. caespitosa, E. cardinalis, E. decora, E. floribunda, E. grandis, E. guttata, E. inflatula, E. jungermannioides, E. lewisii, E. microphylla, E. moschata, E. nasuta, E. patula, E. primuloides, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Erythranthe primuloides

Erythranthe dentata

primrose monkey-flower

coastal monkey-flower, tooth-leaved monkey-flower

Habit

Mat-forming perennial from long, thin rhizomes, the stem lax, up to 6 cm. long.

Perennial from well-developed, shallow rhizomes, the stems ascending or loosely erect, 1-4 dm. tall, the herbage with stiff, white hairs.

Leaves

Leaves opposite, crowded near the ground, short-hairy abaxially (underside), viscid to glabrous adaxially (upperside);

leaves oblanceolate, sessile, nearly entire, 3-nerved from the base, 7-25 mm. long and 3-11 mm. wide.

Leaves opposite, serrate, pinnately veined, but the principle lateral veins arising below the middle;

leaf blades lance-elliptic to ovate, acute, the lower short-petiolate, the upper sessile, 2-7 cm. long and 1-3.5 cm. wide.

Flowers

Flowers solitary on slender pedicels up to 10 cm. long arising from the leaf clusters;

calyx narrow, 4-8 mm. long, mostly glabrous, the 5 teeth short, equal;

corolla yellow, often dotted with maroon, 1-2 cm. long, scarcely bilabiate, the 5 lobes spreading, shallowly notched, the throat somewhat flaring;

stamens 4.

Flowers few, solitary in the leaf axils, on long pedicels;

calyx 8-16 mm. long, 5-angled with spreading hairs along the ribs, the 5 teeth acute, 2-5 mm. long;

corolla 2.5-4 cm. long, bilabiate, yellow, the long, strongly-flaring throat often red-dotted, the 5 well-developed lobes sometimes washed with reddish-purple;

stamens 4.

Fruit

Capsule.