Erythranthe glaucescens |
Erythranthe brachystylis |
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shield-bract monkeyflower |
short-pedicel monkeyflower |
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Habit | Annuals, slender-taprooted or fibrous-rooted, rarely with runners from basal nodes. | Annuals, fibrous-rooted, sometimes taprooted, apparently sometimes producing thin runners from basal nodes. |
Stems | erect, simple or branched, terete, sometimes 4-angled distally, (5–)30–60(–80) cm, glabrous, glaucous. |
erect, simple or branched from proximal to medial nodes, 4-angled, filiform to slightly thickened, not distinctly fistulose, 6–22 cm, glabrous. |
Leaves | basal and cauline; petiole: basal and proximal cauline as long as or much longer than blade, slender, sometimes pubescent or villous, distals absent; blade palmately 3–5-veined, (proximal) ovate to ovate-elliptic or orbicular-ovate, sometimes subcordate, 10–50 mm, midcauline to distal orbicular, 5–45 mm wide, distinctly connate-perfoliate, disclike distally, base rounded to subcordate, margins: proximals denticulate to dentate or coarsely, irregularly toothed, sometimes lobed at base, distals nearly entire or toothed, teeth scattered, small, apex rounded, surfaces glabrous, glaucous. |
basal and cauline; petiole: proximals 1–8 mm, distals 0 mm; blade palmately 3–5-veined, ovate to depressed-ovate or suborbicular, 10–40 × 6–25 mm, base truncate to subcordate, margins undulate, subentire, or weakly, irregularly dentate, apex rounded, surfaces: proximals and medials glabrous, distals villous, hairs thin-walled, flattened, vitreous and sharp-pointed, eglandular. |
Flowers | herkogamous, 1–16, from distal nodes, sometimes from nearly all, chasmogamous. |
plesiogamous, 4–10, from medial to distal nodes, cleistogamous. |
Styles | minutely hirtellous-puberulent. |
glabrous. |
Corollas | yellow, sometimes with a median splotch, abaxial limb densely dark yellow, others much lighter, throat floor and tube red-dotted, bilaterally symmetric, bilabiate; tube-throat funnelform, 12–23 mm, exserted 4–8 mm beyond calyx margin; limb expanded 14–36 mm. |
yellow, without red markings, weakly bilaterally or nearly radially symmetric, weakly bilabiate or nearly regular; tube-throat narrowly cylindric, 7–9 mm, exserted 0–1 mm beyond calyx margin; limb expanded 3 mm. |
Fruiting pedicels | 10–50 mm, glabrous, glaucous. |
5–10 mm in proximal axils, shorter than or equal to subtending leaves, 1–5 mm distally and flowers and fruits appearing sessile or subsessile, glabrous. |
Fruiting calyces | broadly campanulate, inflated, sagittally compressed, 7–16 mm, glabrous, glaucous, throat closing. |
red-tinged to sparsely purple-dotted or not, broadly elliptic-ovoid, inflated, sagittally compressed, 10–13 mm, minutely hirtellous, throat not or slightly closing. |
Capsules | included, 5–11 mm. |
included, stipitate, 4–5 mm. |
Anthers | included, glabrous. |
included, glabrous. |
2n | = 28. |
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Erythranthe glaucescens |
Erythranthe brachystylis |
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Phenology | Flowering Mar–May(–Jun). | Flowering Jun–Aug. |
Habitat | Seepage areas, wet rocks, moist cliffs, pool edges, gravelly stream banks, serpentine outcrops, roadsides and roadcuts, low pastures, riparian woodlands, blue oak woodlands, chaparral, grasslands. | Around springs, steep slopes. |
Elevation | 80–900(–1100) m. (300–3000(–3600) ft.) | 2100 m. (6900 ft.) |
Distribution |
CA
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NV |
Discussion | Plants from one locality in Butte County are unusual in producing filiform, small-leaved runners from basal cauline nodes. Erythranthe glaucescens is known only from Butte and Tehama counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythranthe brachystylis is closely similar to E. arvensis. Plants of both are annual in duration and produce depressed-ovate leaves, the distal with vitreous-villous surfaces, and tiny corollas barely exserted from the calyx and probably cleistogamous. Vestiture of the distal leaves includes an admixture of eglandular sharp-pointed hairs, sometimes encountered in E. arvensis, though not typical, perhaps reflecting introgression from E. nasuta. The distinction of Erythranthe brachystylis from E. arvensis is primarily in its foreshortened pedicels and more inflated fruiting calyces. The fruiting calyces appear to be subsessile or on pedicels shorter or only equaling the subtending leaves. The difference is essentially qualitative but produces a distinctive aspect. Erythranthe brachystylis is known only from the type collection in Nye County, a region where E. arvensis has not been documented. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 17, p. 417. | FNA vol. 17, p. 422. |
Parent taxa | Phrymaceae > Erythranthe | Phrymaceae > Erythranthe |
Sibling taxa | ||
Synonyms | Mimulus glaucescens, M. guttatus var. glaucescens | Mimulus brachystylis |
Name authority | (Greene) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) | (Edwin) G. L. Nesom: Phytoneuron 2012-39: 43. (2012) |
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