Erythranthe nudata |
Erythranthe eastwoodiae |
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bare monkeyflower |
crimson monkeyflower, Eastwood's monkey-flower |
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Habit | Annuals, taprooted or fibrous-rooted. | Perennials, stoloniferous, sometimes also rhizomatous. |
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. |
scandent to pendent, usually simple, 5–30(–40) cm, villous-glandular to minutely stipitate-glandular, hairs often a mixture of longer and much shorter ones, gland-tipped. |
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; petiole 0 mm; blade palmately 3-veined, flabellate distally to obovate to oblanceolate or elliptic, (5–)13–40(–55) × 8–20(–25) mm, largest near mid stem or distally, thick, base cuneate to rounded, subclasping, margins coarsely serrate on distal 1/2, apex acute, surfaces villous-glandular to minutely stipitate-glandular, hairs often a mixture of longer and much shorter ones, gland-tipped. |
Flowers | herkogamous, (2–)4–8, usually in proximal or medial to distal axils, chasmogamous. |
herkogamous, 2–8, axillary at leafy 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. |
scarlet to orange-red or orange, palate red, not spotted or striped, bilaterally symmetric, strongly bilabiate; tube-throat narrowly funnelform, 20–30 mm, exserted 5–15 mm beyond calyx margin; throat open, palate puberulent. |
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. |
10–30(–40) 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. |
cuneate-cylindric to cylindric, weakly or not inflated, 15–23(–27) mm, glabrous or minutely stipitate-glandular to sparsely glandular-villosulous, lobes triangular-acuminate. |
Capsules | included, 6–7 mm. |
included, 6–10 mm. |
Anthers | included, glabrous. |
exserted, villous, thecae reflexed 45º. |
2n | = 16. |
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Erythranthe nudata |
Erythranthe eastwoodiae |
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Phenology | Flowering Apr–Jun. | Flowering May–Sep(–Nov). |
Habitat | Open gravelly seeps on serpentine outcrops, serpentine crevices, springs, streamsides, gravelly creek beds, roadside drainages and swales. | Seepages in sandstone overhangs, cave roofs, walls, crevices, and cliff bases, pinyon-juniper woodlands. |
Elevation | 200–700 m. (700–2300 ft.) | 900–2000 m. (3000–6600 ft.) |
Distribution |
CA
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AZ; CO; NM; UT
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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.) |
The range of Erythranthe eastwoodiae appears to be essentially contiguous with that of E. verbenacea in the Grand Canyon region, but there is no evidence of hybridization. Erythranthe eastwoodiae (as Mimulus eastwoodiae) 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. 394. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus nudatus | Mimulus eastwoodiae |
Name authority | (Curran ex Greene) G. L. Nesom: Phytoneuron 2012-39: 44. (2012) | (Rydberg) G. L. Nesom & N. S. Fraga: Phytoneuron 2012-39: 36. (2012) |
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