Erythranthe microphylla |
Erythranthe inflatula |
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small-leaved monkey-flower |
disappearing monkey-flower |
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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 filiform-taproot; stems 6-20 cm, erect to ascending, straight or sharply bent at nodes, unbranched or branched near base to mid-stem, covered with minute stipitate-glands, gland-tipped hairs 0.1-0.3 mm. |
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 mostly cauline, basal leaves generally not persistent by flowering; petioles 1-3 mm near base, becoming sessile distally; blade elliptic to lanceolate to narrowly ovate, 8-18 mm long and 3-7 mm broad, mostly evenly sized throughout or somewhat reduced distally, palmate venation with 3-5 veins, base attenuate to obtuse to rounded, margins entire to finely toothed, apex acute to obtuse, surfaces glandular 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 mid- to ends of stems; fruiting pedicels not curved or bent, 7-18 mm, glandular as stems; calyx winged, ridged, maturing to ovoid-ellipsoid to bell-shaped or widely urn-shaped, distinctly inflated, 7-11 mm, margins distinctly toothed or lobed, sparsely covered with minute and rigid hairs, eglandular, lobes pronounced, erect; corollas yellow to light yellow, with sparse red dots or not, symmetric bilaterally, slightly bilabiate; tube-throat cylindric, 5-8 mm, protruding 1-3 mm beyond calyx margin; limb only slightly widened, lobes widely obovate, apex rounded to mucronate; styles glabrous; anthers not protruding, glabrous. |
Fruits | Capsules 6-9 mm, included. |
Capsules 5-9 mm, included. |
Erythranthe microphylla |
Erythranthe inflatula |
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Flowering time | April-July | May-July |
Habitat | Rocky slopes, wet meadows, streambanks, and seeps from lowland areas to middle elevations in the mountains. | Moist to 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.
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Occurring east of the Cascades crest in Klickitat County in Washington; south-central Washington to northeastern California, east to southwestern Idaho and Nevada. |
Origin | Native | Native |
Conservation status | Not of concern | Review Group 1 in Washington (WANHP) |
Sibling taxa | ||
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