UW Burke Herbarium species comparison

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Erythranthe tilingii

Erythranthe scouleri

Scouler's monkey-flower
Habit Mat-forming perennial from well-developed, creeping rhizomes, often with stolons as well, the stems 0.5-2 dm. tall, mostly glabrous. Rhizomatous perennials, producing long runners from basal nodes with sparse leaves; stems 15-80 cm, erect, not branched or few-branched, glabrous.
Leaves

Leaves opposite, mostly sessile, the blade under 2.5 cm. long, elliptic to ovate, slightly reduced upward, with a few irregular teeth, sub-palmately veined.

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

Flowers few, solitary in the leaf axils, on long pedicels;

calyx 5-toothed, irregular, the upper tooth much the largest, the 2 lower ones tending to fold upward;

corolla large for the size of the plant, 2-4 cm. long, strongly bilabiate, with flaring throat, yellow with maroon dots or splotches on the pubescent lower lip;

stamens 4.

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.
Fruit

Capsule.

Erythranthe tilingii

Erythranthe scouleri
Flowering time July-September July-August
Habitat Wet meadows and wet, rocky slopes at high elevations in the mountains. Seeps, stream and river banks at low elevations.
Distribution
In the Cascade and Olympic Mountains of Washington; Alaska south to California, east to Montana, Colorado and New Mexico.
[WildflowerSearch map]
Occurring west of the Cascades in southwestern Washington; southwestern British Columbia to northwestern Oregon.
Origin 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. microphylla, 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. ptilota, E. pulsiferae, E. suksdorfii, E. washingtonensis
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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