Erythranthe washingtonensis |
Erythranthe scouleri |
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Washington monkey-flower |
Scouler's monkey-flower |
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Habit | Annuals with fibrous roots or threadlike taproot; stems 5-25 cm, erect to ascending, straight or sharply bent at nodes, typically heavily branched, not angled; puberulent- to villous-glandular, flattened gland-tipped hairs 0.1-0.8 mm, sometimes transparent. | Rhizomatous perennials, producing long runners from basal nodes with sparse leaves; stems 15-80 cm, erect, not branched or few-branched, glabrous. |
Leaves | Leaves cauline, basal ones not persistent; petioles 2-14 mm; blade triangular to ovate to narrowly ovate, 4-16 mm long and 2-11 mm broad, palmate venation, base rounded to cuneate to truncate, margins finely toothed or entire, apex acute, surfaces hairy-glandular as stems. |
Leaves cauline, basal ones not typically persistent; petioles 10-25 mm and gradually merging into blade, becoming sessile distally; blade oblong-elliptic to oblong lanceolate, 25-60 mm long and 8-18 mm broad, palmate venation with 5-7 veins to nearly pinnate, base attenuate, margins evenly and shallowly toothed or scalloped with 10-20 teeth per side, apex acute to obtuse, surfaces glabrous. |
Flowers | Axillary flowers 1-6, emerging from nodes throughout; fruiting pedicels 20-50 mm, densely covered with minute stalked glands; calyx greenish, ridged, tubular, slightly inflated, 6-8 mm, margins toothed or lobed, covered with minute stalked glands, lobes pronounced, erect; corollas yellow with small reddish brown dots, lower limb with two whitish patches, symmetric bilaterally, bilabiate; tube-throat funnel-shaped and 8-10 mm, protruding beyond calyx margin; limb expanded 7-10 mm, lobes obovate-oblong, apex rounded to somewhat cuneate; styles hispid-hirtellous; anthers not protruding, glabrous. |
Axillary flowers 2-8, emerging distalmost nodes; fruiting pedicels 20-25 mm, glabrous; calyx ovoid, inflated, compressed across sagittal plane, 13-14 mm, glabrous, throat closing; corollas yellow with few or no reddish markings, symmetric bilaterally, bilabiate; tube-throat funnel-shaped and 20-24 mm, protruding 10-15 mm beyond calyx margin; limb expanded 2-30 mm; styles prominently hirsute to villous; anthers not protruding, glabrous. |
Fruits | Capsules 5-8.5 mm, included. |
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Erythranthe washingtonensis |
Erythranthe scouleri |
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Flowering time | April-June | July-August |
Habitat | Shallow or gravelly soils of vernally moist areas at low elevations. | Seeps, stream and river banks at low elevations. |
Distribution | Occurring east of the cascades crest in the Columbia River Gorge in Washington; south-central Washington to adjacent north-central Oregon.
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Occurring west of the Cascades in southwestern Washington; southwestern British Columbia to northwestern Oregon. |
Origin | Native | Native |
Conservation status | Historical in Washington (WANHP) | Not of concern |
Sibling taxa | ||
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