Erythranthe nudata |
Erythranthe gracilipes |
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bare monkeyflower |
slender-stalk monkeyflower |
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Habit | Annuals, taprooted or fibrous-rooted. | Annuals, taprooted. |
Stems | erect or ascending, simple or few-branched from basal nodes, branches mostly reddish purple, (5–)9–30 cm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
erect, simple or branched, 5–15 cm, sparsely glandular-puberulent. |
Leaves | cauline on wide internodes; petiole 5–30 mm, distals 0 mm; blade 1-veined or palmately 3–5-veined, proximals lanceolate or oblong-lanceolate to ovate, narrowly spatulate, or oblanceolate, distals usually linear, not perfoliate, 5–15(–30) × 1–5 mm, base attenuate, margins denticulate to proximally dentate-lobed, apex acute, surfaces glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
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, (2–)4–8, usually in proximal or medial to distal axils, chasmogamous. |
herkogamous, 1–15, from distal or medial to distal nodes. |
Styles | glabrous. |
glabrous. |
Corollas | yellow, without a large red splotch, throat floor and tube red-spotted, bilaterally symmetric, bilabiate; tube-throat cylindric-funnelform, 8–12 mm, exserted 2–4 mm beyond calyx margin; limb expanded 8–12 mm. |
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 | erect in flower, spreading to divaricate, rarely recurved, in fruit, 10–35 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes. |
8–30 mm. |
Fruiting calyces | ovate-campanulate, inflated, sagittally compressed, 6–13 mm, glabrous or minutely stipitate-glandular, hairs 0.05–0.1 mm, at least just above nodes, throat closing, abaxial lobe upcurving over lateral ones, nearly closing orifice. |
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, 6–7 mm. |
included, 4–5 mm. |
Anthers | included, glabrous. |
included, glabrous. |
Erythranthe nudata |
Erythranthe gracilipes |
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Phenology | Flowering Apr–Jun. | Flowering Apr–May. |
Habitat | Open gravelly seeps on serpentine outcrops, serpentine crevices, springs, streamsides, gravelly creek beds, roadside drainages and swales. | Open areas in thin decomposed granite soils, often on edges of large granite boulders. |
Elevation | 200–700 m. (700–2300 ft.) | 500–1300 m. (1600–4300 ft.) |
Distribution |
CA
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CA
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Discussion | Erythranthe nudata is distinct in its annual duration, few, inconspicuous, and narrow leaves, long and spreading-divaricate pedicels, and large corollas. The plants apparently are restricted to serpentine substrate and known only from Colusa, Glenn, Lake, Mendocino, Napa, and Sonoma counties. (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. 417. | FNA vol. 17, p. 385. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus nudatus | Mimulus gracilipes |
Name authority | (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) | (B. L. Robinson) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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