Burke: Erythranthe microphylla vs. Erythranthe breviflora

	Erythranthe microphylla	Erythranthe breviflora
	small-leaved monkey-flower	short-flowered monkey-flower
Habit	Annuals with fibrous roots; stems usually 5-30 cm, erect, unbranched or many-branched from nodes nearest base, not angled or distinctly 4-angled, glabrous below inflorescence, distal portions of stems sometimes hirtellous with hairs that are occasionally deflexed, sometimes mixed with stipitate glands or occasionally only short villous-glandular.	Annuals with shallow fibrous roots; stems 4-15 cm, ascending, sharply bent at nodes, branching at nodes near base to mid-stem, covered with minute stalked glands, gland-tipped hairs 0.1-0.3 mm, occasionally with minute sharp-pointed hairs bending backward without glands.
Leaves	Leaves basal and cauline, basal leaves occasionally deciduous by flowering; petioles 3-5 mm from base to mid-stem, becoming sessile and nearly clasping to perfoliate distally; blade commonly somewhat purple, narrowly ovate to ovate to elliptic to nearly orbicular, 10-35 mm long and 3-25 mm broad, palmate venation with 3-5 veins, base rounded to wedge or nearly heart-shaped, margins more or less crenate or nearly serrate with 5-10 teeth per side, basal and lower cauline leaves irregularly incised near base becoming nearly lyrate; apex acute to obtuse-rounded, surfaces glabrous or with sparse to moderate coverage of small rigid hairs, eglandular.	Leaves typically cauline, basal leaves commonly not persisting past flowering; petiole 1-3 mm; blade narrowly ovate or elliptic to lanceolate, 5-15 mm long and 2-6 mm broad, mostly even-sized or becoming slightly smaller distally, 3 palmately arranged veins, base becoming narrow, margins entire or finely toothed, apex acute to obtuse, sometimes glandular-hairy as stems.
Flowers	Axillary flowers 1-8, emerging from nodes towards ends of stems; fruiting pedicels 8-30 mm, hairy-glandular as stems; calyx nodding at 30-90 degrees, occasionally somewhat reddish or red-dotted, ovoid-campanulate to widely cylindric-campanulate, inflated, compressed across sagittal plane, usually 9-16 mm, hirtellous or glabrous, throat closing weakly or strongly; corollas yellow to dark yellow to orangish yellow, typically with red spots, lower limb occasionally with large red splotch, symmetric bilaterally, bilabiate; tube-throat widely funnel-shaped, 8-16 mm, protruding 2-6 mm beyond calyx margin; limb expanded 8-25 mm, palate villous; styles slightly hirtellous; anthers not protruding, glabrous.	Axillary flowers 10-20, emerging from nodes at mid- to ends of stems; fruiting pedicels not bent or curved, 5-11 mm, glandular-hairy as stems; calyx winged, ridged, bell-shaped becoming somewhat ovoid-ellipsoid, strongly inflated, 5-6 mm, margins significantly toothed or lobed, sparsely covered with small rigid hairs, no glands or occasionally slightly sessile-glandular, lobes pronounced, erect; corollas yellow with red spots or stripes, with bilateral symmetry and weakly bilabiate; tube-throat cylindric to slenderly funnel-shaped, 3.5-5 mm, not protruding past calyx margin; limb minutely widened, lobes broadly obovate with rounded apexes; styles glabrous; anthers not protruding, glabrous.
Fruits	Capsules 6-9 mm, included.	Capsules 4-6 mm, included.

	Erythranthe microphylla	Erythranthe breviflora
Flowering time	April-July	May-July
Habitat	Rocky slopes, wet meadows, streambanks, and seeps from lowland areas to middle elevations in the mountains.	Moist and wet open areas at low elevations.
Distribution	Occurring on both sides of the Cascades crest in Washington; central British Columbia to California, east to western Idaho and Nevada. [WildflowerSearch map]	Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Montana, and Nevada. [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. moschata, E. nasuta, E. patula, E. primuloides, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis	E. alsinoides, E. ampliata, E. arvensis, 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. primuloides, E. ptilota, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis
Web links	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	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 breviflora

small-leaved monkey-flower

short-flowered monkey-flower

Habit

Annuals with fibrous roots; stems usually 5-30 cm, erect, unbranched or many-branched from nodes nearest base, not angled or distinctly 4-angled, glabrous below inflorescence, distal portions of stems sometimes hirtellous with hairs that are occasionally deflexed, sometimes mixed with stipitate glands or occasionally only short villous-glandular.

Annuals with shallow fibrous roots; stems 4-15 cm, ascending, sharply bent at nodes, branching at nodes near base to mid-stem, covered with minute stalked glands, gland-tipped hairs 0.1-0.3 mm, occasionally with minute sharp-pointed hairs bending backward without glands.

Leaves

Leaves basal and cauline, basal leaves occasionally deciduous by flowering;

petioles 3-5 mm from base to mid-stem, becoming sessile and nearly clasping to perfoliate distally;

blade commonly somewhat purple, narrowly ovate to ovate to elliptic to nearly orbicular, 10-35 mm long and 3-25 mm broad, palmate venation with 3-5 veins, base rounded to wedge or nearly heart-shaped, margins more or less crenate or nearly serrate with 5-10 teeth per side, basal and lower cauline leaves irregularly incised near base becoming nearly lyrate;

apex acute to obtuse-rounded, surfaces glabrous or with sparse to moderate coverage of small rigid hairs, eglandular.

Leaves typically cauline, basal leaves commonly not persisting past flowering;

petiole 1-3 mm;

blade narrowly ovate or elliptic to lanceolate, 5-15 mm long and 2-6 mm broad, mostly even-sized or becoming slightly smaller distally, 3 palmately arranged veins, base becoming narrow, margins entire or finely toothed, apex acute to obtuse, sometimes glandular-hairy as stems.

Flowers

Axillary flowers 1-8, emerging from nodes towards ends of stems; fruiting pedicels 8-30 mm, hairy-glandular as stems;

calyx nodding at 30-90 degrees, occasionally somewhat reddish or red-dotted, ovoid-campanulate to widely cylindric-campanulate, inflated, compressed across sagittal plane, usually 9-16 mm, hirtellous or glabrous, throat closing weakly or strongly;

corollas yellow to dark yellow to orangish yellow, typically with red spots, lower limb occasionally with large red splotch, symmetric bilaterally, bilabiate;

tube-throat widely funnel-shaped, 8-16 mm, protruding 2-6 mm beyond calyx margin;

limb expanded 8-25 mm, palate villous;

styles slightly hirtellous;

anthers not protruding, glabrous.

Axillary flowers 10-20, emerging from nodes at mid- to ends of stems; fruiting pedicels not bent or curved, 5-11 mm, glandular-hairy as stems;

calyx winged, ridged, bell-shaped becoming somewhat ovoid-ellipsoid, strongly inflated, 5-6 mm, margins significantly toothed or lobed, sparsely covered with small rigid hairs, no glands or occasionally slightly sessile-glandular, lobes pronounced, erect;

corollas yellow with red spots or stripes, with bilateral symmetry and weakly bilabiate;

tube-throat cylindric to slenderly funnel-shaped, 3.5-5 mm, not protruding past calyx margin;

limb minutely widened, lobes broadly obovate with rounded apexes;

styles glabrous;

anthers not protruding, glabrous.

Fruits

Capsules 6-9 mm, included.

Capsules 4-6 mm, included.