Erythranthe nudata |
Erythranthe shevockii |
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bare monkeyflower |
Kelso Creek monkeyflower, Kelso Creek or Shevock's 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 from basal nodes, 2–12 cm, minutely puberulent or glabrous. |
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 palmately 3-veined (in broader ones), lanceolate to ovate, 3–10 × 1–5 mm, base truncate to truncate-cordate, clasping, margins entire, apex acute to obtuse, surfaces minutely puberulent or glabrous. |
Flowers | herkogamous, (2–)4–8, usually in proximal or medial to distal axils, chasmogamous. |
herkogamous, 1–16, 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. |
maroon and yellow, 2 lateral lobes maroon, 1 much larger central lobe yellow (red-spotted), 2 adaxial lobes maroon, bilaterally symmetric, strongly bilabiate; tube-throat cylindric, 8–12 mm, exserted 2–3 mm beyond calyx margin; limb expanded 8–15 mm, central lobe 2-fid, abaxial limb sparsely villous-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. |
ascending to often spreading horizontally, 10–22 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. |
red-spotted or red, campanulate, 4–7 mm, margins distinctly toothed or lobed, minutely puberulent or glabrous, ribs weak, lobes pronounced, erect, margins glabrous. |
Capsules | included, 6–7 mm. |
included, 5–6 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 32. |
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Erythranthe nudata |
Erythranthe shevockii |
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Phenology | Flowering Apr–Jun. | Flowering Mar–May. |
Habitat | Open gravelly seeps on serpentine outcrops, serpentine crevices, springs, streamsides, gravelly creek beds, roadside drainages and swales. | Level openings in juniper and Joshua tree woodlands. |
Elevation | 200–700 m. (700–2300 ft.) | 900–1400 m. (3000–4600 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 shevockii is known only from the southernmost Sierra Nevada in Kern County. It (as Mimulus shevockii) is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 417. | FNA vol. 17, p. 389. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus nudatus | Mimulus shevockii |
Name authority | (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) | (Heckard & Bacigalupi) N. S. Fraga: Phytoneuron 2012-39: 35. (2012) |
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