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sessile-leaved monkey-flower

field monkey-flower

Habit 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. Annuals with fibrous roots or taproots, sometimes rooting at nodes near base if decumbent; stems 5-70 cm, erect to decumbent-ascending, unbranched or branching at medial to proximal nodes, generally with 4 angles, hollow or very narrow, glabrous, sometimes with coarse and stiff pubescence in inflorescence, hairs without glands bending backwards.
Leaves

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.

Leaves basal and cauline, or basal leaves may not persist, mid-stem or higher leaves often largest and becoming smaller distally; petiolate, petioles 3-20, distally sessile;

blade ovate to orbicular to oblong, middle and distal cauline leaves may be orbicular to nearly reniform, generally 10-35 mm long and 6 to 26 broad, 3-5 palmately-arranged veins, earlobe-like appendages near base, base rounded to truncate to slightly cordate, margins distinctly toothed to nearly entire, larger plants show lower leaves lacerate lobed to pinnatifid margin bases, apex rounded, surfaces glabrous except bracts densely villous beneath and occasionally above, long eglandular hairs flattened and sometimes transparent.

Flowers

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.

Axillary flowers generally 3-8, emerging from distal-most nodes; fruiting pedicels eglandular and smooth, longer than subtending leaves, typically 5-40 mm;

calyx sometimes with red dots, ovate to campanulate, inflated, compressed along sagittal plane, 9-14 mm, slightly hirtellous, throat sometimes closed or open, lobes curving upward weakly, top lobe not significantly longer than lower lobe, not distinctly curved;

corollas yellow, commonly with red spots, weak bilateral symmetry or near radial symmetry, slightly bilabiate or almost regular;

tube-throat cylindric to funnel-shaped, 8-12 mm, protruding 1-2 mm past calyx margin;

limb expanded 5-10 mm;

styles glabrous;

anthers not protruding, glabrous.

Fruits

Capsules 6-8 mm, included.

Capsules 6-7 mm, included, stalked.

Erythranthe ptilota

Erythranthe arvensis

Flowering time June-September May-July
Habitat Wet places generally at low elevations. Open slopes and stream bank.;
Distribution
Occurring west of the Cascades crest in Washington; southern British Columbia to California.
[WildflowerSearch map]
Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to southern Idaho, Utah, and Nevada, disjunct in west-central Montana.
[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. microphylla, E. moschata, E. nasuta, E. patula, E. primuloides, E. pulsiferae, E. scouleri, E. suksdorfii, E. washingtonensis
E. alsinoides, E. ampliata, 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
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