Burke: Erythranthe patula vs. Erythranthe cardinalis

	Erythranthe patula	Erythranthe cardinalis
	stalk-leaved monkey-flower	scarlet monkey-flower
Habit	Annuals with fibrous roots or a filiform-taproot; stems usually 5-15 cm, erect to ascending, straight or sharply bent at nodes, usually unbranched, covered with stalked glands, gland-tipped hairs 0.2-0.5 mm.	Rhizomatous perennials; stems 25-75 cm, usually erect or curving upward, branched, somewhat glandular-villous or becoming glabrous.
Leaves	Leaves cauline, basal ones not persistent; petioles 8-25 mm; blade deltate or somewhat ovate to lanceolate, approximately 4-12 mm long and 3-10 mm broad, palmate venation with 3 veins, base rounded to cuneate-truncate, margins usually finely toothed, apex acute to obtuse, surfaces glabrous as stems.	Leaves typically cauline; sessile; blade ovate to elliptic to obovate, 20-90 mm long and 10-38 mm broad, palmate venation, base acuminate and nearly clasping, margins irregularly toothed, apex acute, surfaces hairy as stems.
Flowers	Axillary flowers 1-10, emerging from nodes throughout; fruiting pedicels 10-25 mm, glandular as stems; calyx tubular, barely or not inflated, 5-6 mm, margins with distinct teeth or lobes, slightly stipitate-glandular to sparsely hirtellous, lobes pronounced, erect; corollas yellow, lower limb commonly with some red or brownish dots, symmetric radially or bilaterally, regular or weakly bilabiate; tube-throat funnel-shaped, 7-8 mm, protruding beyond calyx margin; lobes oblong, apex rounded to truncate; styles glabrous; anthers not protruding, glabrous.	Axillary flowers 2-12, emerging from leaf axes at mid- to ends of stem; fruiting pedicels generally 30-90 mm; calyx cylindric to nearly bell-shaped, not inflated, 17-28 mm, hairy or bristly-hairy, lobes 4-7 mm, ovate to nearly deltate, apex attenuate-acute; corollas red to orangish red or rarely yellow, throat yellowish with red stripes, palate red, yellow-villous and not spotted or striped, symmetric bilaterally, distinctly bilabiate; tube-throat funnel-shaped, generally 20-30 mm, protruding beyond calyx margin; throat open; styles glabrous; anthers protruding, white-hairy, thecae spreading.
Fruits	Capsules 4-6 mm, included.	Capsules 10-16 mm, included.

	Erythranthe patula	Erythranthe cardinalis
Flowering time	May-July	May-August
Habitat	Vernally moist areas, seeps, and stream banks from the lowlands to the middle elevations.	Streambanks, where escaped from cultivation.
Distribution	Occurring east of the Cascades crest in southeastern Washington; southeast Washington to adjacent northeast Oregon and adjacent west-central Idaho. [WildflowerSearch map]	Occurring east of the Cascades crest in Washington; Washington to California, east to the southern Rocky Mountains. [WildflowerSearch map]
Origin	Native	Introduced
Conservation status	Threatened in Washington (WANHP)	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. primuloides, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis	E. alsinoides, E. ampliata, E. arvensis, E. breviflora, E. breweri, E. caespitosa, 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. primuloides, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis
Web links	Local floras: BC, OR, WA Local Web sites: 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: 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

Erythranthe cardinalis

stalk-leaved monkey-flower

scarlet monkey-flower

Habit

Annuals with fibrous roots or a filiform-taproot; stems usually 5-15 cm, erect to ascending, straight or sharply bent at nodes, usually unbranched, covered with stalked glands, gland-tipped hairs 0.2-0.5 mm.

Rhizomatous perennials; stems 25-75 cm, usually erect or curving upward, branched, somewhat glandular-villous or becoming glabrous.

Leaves

Leaves cauline, basal ones not persistent;

petioles 8-25 mm;

blade deltate or somewhat ovate to lanceolate, approximately 4-12 mm long and 3-10 mm broad, palmate venation with 3 veins, base rounded to cuneate-truncate, margins usually finely toothed, apex acute to obtuse, surfaces glabrous as stems.

Leaves typically cauline; sessile;

blade ovate to elliptic to obovate, 20-90 mm long and 10-38 mm broad, palmate venation, base acuminate and nearly clasping, margins irregularly toothed, apex acute, surfaces hairy as stems.

Flowers

Axillary flowers 1-10, emerging from nodes throughout; fruiting pedicels 10-25 mm, glandular as stems;

calyx tubular, barely or not inflated, 5-6 mm, margins with distinct teeth or lobes, slightly stipitate-glandular to sparsely hirtellous, lobes pronounced, erect;

corollas yellow, lower limb commonly with some red or brownish dots, symmetric radially or bilaterally, regular or weakly bilabiate;

tube-throat funnel-shaped, 7-8 mm, protruding beyond calyx margin;

lobes oblong, apex rounded to truncate;

styles glabrous;

anthers not protruding, glabrous.

Axillary flowers 2-12, emerging from leaf axes at mid- to ends of stem; fruiting pedicels generally 30-90 mm;

calyx cylindric to nearly bell-shaped, not inflated, 17-28 mm, hairy or bristly-hairy, lobes 4-7 mm, ovate to nearly deltate, apex attenuate-acute;

corollas red to orangish red or rarely yellow, throat yellowish with red stripes, palate red, yellow-villous and not spotted or striped, symmetric bilaterally, distinctly bilabiate;

tube-throat funnel-shaped, generally 20-30 mm, protruding beyond calyx margin;

throat open;

styles glabrous;

anthers protruding, white-hairy, thecae spreading.

Fruits

Capsules 4-6 mm, included.

Capsules 10-16 mm, included.