Burke: Erythranthe microphylla vs. Erythranthe nasuta

	Erythranthe microphylla	Erythranthe nasuta
	small-leaved monkey-flower	large-nose monkey-flower, snouted 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 fibrous roots or a slender taproot; stems usually 2-35 cm, erect to ascending-erect or decumbent, unbranched or branched from nodes nearest base, 4-angled or occasionally weakly 4-winged, thin and wiry or hollow, glabrous except for small villous-glandular areas directly above nodes, occasionally with minute rigid hairs distally.
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 basal and cauline or basal may not persist; petioles 3-35 mm from base to mid-stem with narrowly flanged bases, becoming sessile distally; blade reddish or purple-spotted beneath, somewhat ovate to nearly orbicular, approximately 10-49 mm long and 10-25 mm broad, leaves nearest base largest and persistent, palmate venation with 3-5 veins, base cuneate to truncate or nearly cordate, margins irregularly toothed or nearly lacerate, commonly doubly-toothed, 4-9 main teeth per side, sometimes sublacerate to sublyrate near base, apex acute to obtuse, surfaces glabrous or hirtellous with hairs that are dull, cylindrical, sharp-pointed, eglandular.
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 typically 2-12, emerging from nodes at mid- to ends of stems; fruiting pedicels usually 7-20 mm, longer than subtending leaves, becoming glabrous, occasionally glandular-villous on upper surface at axils; calyx nodding at 30-180 degrees, commonly purplish or purple-spotted, ovoid-campanulate, inflated, compressed across sagittal plane, usually 10-15 mm, hirtellous or appressed-hirtellous, or glabrous, slightly short-ciliate at sinuses, throat closing, upper lobe generally longer than lower lobe, slightly sickle shaped; corollas yellow, throat commonly with red spots, lower limb usually with a red splotch at base, symmetric bilaterally, weakly bilabiate; tube-throat widely cylindric, 8-12 mm, equal to or protruding 1-2 mm beyond calyx margin, limb expanded 6-12 mm; styles slightly rough or glabrous; anthers not protruding, glabrous.
Fruits	Capsules 6-9 mm, included.	Capsules 5-9 mm, included.

	Erythranthe microphylla	Erythranthe nasuta
Flowering time	April-July	May-July
Habitat	Rocky slopes, wet meadows, streambanks, and seeps from lowland areas to middle elevations in the mountains.	Rocky or moist slopes, stream banks, and seeps.
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 on both sides of the Cascades crest in Washington; southern British Columbia to Baja California, east to Idaho, Utah, and New Mexico. [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. 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 nasuta

small-leaved monkey-flower

large-nose monkey-flower, snouted 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 fibrous roots or a slender taproot; stems usually 2-35 cm, erect to ascending-erect or decumbent, unbranched or branched from nodes nearest base, 4-angled or occasionally weakly 4-winged, thin and wiry or hollow, glabrous except for small villous-glandular areas directly above nodes, occasionally with minute rigid hairs distally.

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 basal and cauline or basal may not persist;

petioles 3-35 mm from base to mid-stem with narrowly flanged bases, becoming sessile distally;

blade reddish or purple-spotted beneath, somewhat ovate to nearly orbicular, approximately 10-49 mm long and 10-25 mm broad, leaves nearest base largest and persistent, palmate venation with 3-5 veins, base cuneate to truncate or nearly cordate, margins irregularly toothed or nearly lacerate, commonly doubly-toothed, 4-9 main teeth per side, sometimes sublacerate to sublyrate near base, apex acute to obtuse, surfaces glabrous or hirtellous with hairs that are dull, cylindrical, sharp-pointed, eglandular.

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 typically 2-12, emerging from nodes at mid- to ends of stems; fruiting pedicels usually 7-20 mm, longer than subtending leaves, becoming glabrous, occasionally glandular-villous on upper surface at axils;

calyx nodding at 30-180 degrees, commonly purplish or purple-spotted, ovoid-campanulate, inflated, compressed across sagittal plane, usually 10-15 mm, hirtellous or appressed-hirtellous, or glabrous, slightly short-ciliate at sinuses, throat closing, upper lobe generally longer than lower lobe, slightly sickle shaped;

corollas yellow, throat commonly with red spots, lower limb usually with a red splotch at base, symmetric bilaterally, weakly bilabiate;

tube-throat widely cylindric, 8-12 mm, equal to or protruding 1-2 mm beyond calyx margin, limb expanded 6-12 mm;

styles slightly rough or glabrous;

anthers not protruding, glabrous.

Fruits

Capsules 6-9 mm, included.

Capsules 5-9 mm, included.