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John Day or Washington monkeyflower, Washington monkey-flower

slender-stalk monkeyflower

Habit Annuals, fibrous-rooted or filiform-taprooted. Annuals, taprooted.
Stems

erect to ascending, straight or geniculate at nodes, usually many-branched, terete, 5–25 cm, moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped.

erect, simple or branched, 5–15 cm, sparsely glandular-puberulent.

Leaves

cauline, basal not persistent;

petiole 2–14 mm;

blade palmately veined, deltate or ovate to ovate-lanceolate, 4–16(–23) × 2–11(–16) mm, base rounded to cuneate or truncate, margins denticulate or entire, apex acute, surfaces moderately puberulent-glandular to villous-glandular, hairs 0.1–0.8 mm, flattened, sometimes vitreous, distinctly multicellular, gland-tipped.

cauline, basal not persistent;

petiole 0 mm;

blade 1-veined or palmately 3-veined (in broader ones), linear to lanceolate, (3–)7–13 × 1–3 mm, base attenuate, margins entire, sometimes toothed, apex acute to obtuse, surfaces sparsely glandular-puberulent.

Flowers

herkogamous, 1–6, from proximal to distal nodes.

herkogamous, 1–15, from distal or medial to distal nodes.

Styles

hispid-hirtellous.

glabrous.

Corollas

yellow with small reddish brown dots, abaxial limb with 2 white patches (abaxial ridges), bilaterally symmetric, strongly bilabiate;

tube-throat funnelform, 8–10 mm, exserted beyond calyx margin;

limb expanded 7–10 mm, lobes obovate-oblong, apex rounded to rounded-cuneate.

pink to rose lavender, throat deep pink to purple with 2 yellow longitudinal ridges, bilaterally symmetric, strongly bilabiate, 2 adaxial lobes much reduced, smaller than 3 abaxials;

tube-throat cylindric, 7–10 mm, exserted beyond calyx margin;

limb expanded 5–9 mm, abaxial lobes rounded and shallowly 2-fid, abaxial limb glabrous or sparsely bearded.

Fruiting pedicels

divergent at nearly right angles, 20–50 mm, densely, minutely stipitate-glandular.

8–30 mm.

Fruiting calyces

greenish, ridge-angled, tubular, weakly inflated, 6–8 mm, margins distinctly toothed or lobed, densely, minutely stipitate-glandular, lobes pronounced, erect.

becoming red to straw colored, campanulate, 4–7 mm, margins distinctly toothed or lobed, sparsely glandular-puberulent, ribs thickened, lobes pronounced, erect, margins ciliate.

Capsules

included, 5–8.5 mm.

included, 4–5 mm.

Anthers

included, glabrous.

included, glabrous.

2n

= 32.

Erythranthe washingtonensis

Erythranthe gracilipes

Phenology Flowering May–Sep. Flowering Apr–May.
Habitat Shallow basalt gravel in narrow channels and intermittent streams, sandy stream banks, open slopes, rocky shelves near seeps. Open areas in thin decomposed granite soils, often on edges of large granite boulders.
Elevation 700–1300 m. (2300–4300 ft.) 500–1300 m. (1600–4300 ft.)
Distribution
from FNA
OR
[WildflowerSearch map]
from FNA
CA
[WildflowerSearch map]
Discussion

Erythranthe washingtonensis is considered to be extirpated in Washington by the Washington Natural Heritage Program.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Erythranthe gracilipes is endemic to the foothills of the central Sierra Nevada in Fresno, Madera, and Mariposa counties and apparently is most abundant after fire.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 17, p. 396. FNA vol. 17, p. 385.
Parent taxa Phrymaceae > Erythranthe Phrymaceae > Erythranthe
Sibling taxa
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. diffusa, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. geyeri, E. glaucescens, E. gracilipes, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. laciniata, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. willisii
E. acutidens, E. alsinoides, E. ampliata, E. androsacea, E. arenaria, E. arenicola, E. arvensis, E. barbata, E. bicolor, E. brachystylis, E. breviflora, E. breweri, E. caespitosa, E. calcicola, E. calciphila, E. cardinalis, E. carsonensis, E. charlestonensis, E. chinatiensis, E. cinnabarina, E. corallina, E. cordata, E. decora, E. dentata, E. diffusa, E. discolor, E. eastwoodiae, E. erubescens, E. exigua, E. filicaulis, E. filicifolia, E. floribunda, E. gemmipara, E. geniculata, E. geyeri, E. glaucescens, E. grandis, E. grayi, E. guttata, E. hallii, E. hardhamiae, E. hymenophylla, E. inamoena, E. inconspicua, E. inflatula, E. jungermannioides, E. laciniata, E. latidens, E. lewisii, E. linearifolia, E. marmorata, E. michiganensis, E. microphylla, E. minor, E. montioides, E. moschata, E. nasuta, E. norrisii, E. nudata, E. palmeri, E. pardalis, E. parishii, E. parvula, E. patula, E. percaulis, E. primuloides, E. ptilota, E. pulsiferae, E. purpurea, E. regni, E. rhodopetra, E. rubella, E. scouleri, E. shevockii, E. sierrae, E. suksdorfii, E. taylorii, E. thermalis, E. tilingii, E. trinitiensis, E. unimaculata, E. utahensis, E. verbenacea, E. washingtonensis, E. willisii
Synonyms Mimulus washingtonensis Mimulus gracilipes
Name authority (Gandoger) G. L. Nesom: Phytoneuron 2012-39: 39. (2012) — (as washingtoniensis) (B. L. Robinson) N. S. Fraga: Phytoneuron 2012-39: 35. (2012)
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