Burke: Erythranthe microphylla vs. Erythranthe ptilota

	Erythranthe microphylla	Erythranthe ptilota
	small-leaved monkey-flower	sessile-leaved 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.	Rhizomatous perennials, occasionally rooting at nodes nearest base; stems 20-80 cm, prostrate or decumbent to ascending, only slightly branched, villous eglandular hairs 1-2 mm, occasionally with shorter stipitate-glandular hairs, internodes evident.
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 cauline, basal ones not persistent, commonly congested; subsessile to sessile; blade oblong to lanceolate, 30-70 mm long and 10-22 mm broad, pinnate venation, base rounded, margins toothed to finely toothed, apex acute, surfaces 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 4-10, emerging from nodes at mid- to ends of stems; fruiting pedicels generally 22-50 mm, hairy as stems; calyx winged, cylindric-campanulate, barely inflated, 10-12 mm, villous with gland-tipped hairs, lobes spreading noticeably, strongly unequal, linear-lanceolate to slender-triangular, 5-9 mm, apex long acuminate-apiculate; corollas yellow, throat faintly marked with blackish-brownish lines, symmetric almost radially or weakly bilaterally, nearly regular or weakly bilabiate; tube-throat slenderly bell-shaped, 15-18 mm, protruding beyond calyx margin; lobe apex rounded; styles glabrous; anthers not protruding, covered with fine hairs that are stiff to slightly rigid.
Fruits	Capsules 6-9 mm, included.	Capsules 6-8 mm, included.

	Erythranthe microphylla	Erythranthe ptilota
Flowering time	April-July	June-September
Habitat	Rocky slopes, wet meadows, streambanks, and seeps from lowland areas to middle elevations in the mountains.	Wet places generally 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 west of the Cascades crest in Washington; southern British Columbia to 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. moschata, E. nasuta, E. patula, 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. 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. 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, 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 ptilota

small-leaved monkey-flower

sessile-leaved 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.

Rhizomatous perennials, occasionally rooting at nodes nearest base; stems 20-80 cm, prostrate or decumbent to ascending, only slightly branched, villous eglandular hairs 1-2 mm, occasionally with shorter stipitate-glandular hairs, internodes evident.

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 cauline, basal ones not persistent, commonly congested; subsessile to sessile;

blade oblong to lanceolate, 30-70 mm long and 10-22 mm broad, pinnate venation, base rounded, margins toothed to finely toothed, apex acute, surfaces 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 4-10, emerging from nodes at mid- to ends of stems; fruiting pedicels generally 22-50 mm, hairy as stems;

calyx winged, cylindric-campanulate, barely inflated, 10-12 mm, villous with gland-tipped hairs, lobes spreading noticeably, strongly unequal, linear-lanceolate to slender-triangular, 5-9 mm, apex long acuminate-apiculate;

corollas yellow, throat faintly marked with blackish-brownish lines, symmetric almost radially or weakly bilaterally, nearly regular or weakly bilabiate;

tube-throat slenderly bell-shaped, 15-18 mm, protruding beyond calyx margin;

lobe apex rounded;

styles glabrous;

anthers not protruding, covered with fine hairs that are stiff to slightly rigid.

Fruits

Capsules 6-9 mm, included.

Capsules 6-8 mm, included.