Erythranthe utahensis

(Pennell) G. L. Nesom

Phytoneuron 2012-39: 44. 2012.

Common names: Utah monkeyflower
Endemic
Basionym: Mimulus glabratus subsp. utahensis Pennell Monogr. Acad. Nat. Sci. Philadelphia 1: 123. 1935
Treatment appears in FNA Volume 17. Treatment on page 410. Mentioned on page 374, 411.

Perennials, rhizomatous, rooting at nodes, rhizomes filiform. Stems erect, sometimes decumbent-ascending proximally, simple or few-branched, 20–50 cm, glabrous or sparsely stipitate-glandular in inflorescence. Leaves basal and cauline, even-sized or largest near mid-stem; petiole 0 mm or proximalmost 2–10 mm; blade palmately 3–5-veined, orbicular or suborbicular to broadly elliptic, broadly ovate, or depressed-ovate, 20–40 (–75) × 12–35 (–40) mm, base usually truncate to broadly cuneate, margins entire or subentire to mucronulate, shallowly dentate, or denticulate, apex rounded, surfaces glabrous or glabrate to sparsely stipitate-glandular and sparsely pilose, hairs thin-walled, abaxial often glaucous. Flowers herkogamous, 6–16, from proximal to distal nodes, in a loose raceme, distal bracts becoming much reduced. Fruiting pedicels (25–) 40–75 mm, stipitate-glandular to short-villous, hairs gland-tipped. Fruiting calyces broadly ovate-cylindric, inflated, sagittally compressed, (10–) 11–17 (–20) mm, stipitate-glandular or minutely hirtellous or a mixture, hairs sometimes also longer, thin-walled, eglandular or glandular, throat not closing, adaxial lobe slightly longer, triangular-blunt. Corollas yellow, abaxial limb prominently darker yellow, sparsely purple-spotted, bilaterally symmetric, weakly bilabiate; tube-throat narrowly funnelform to broadly cylindric, 10–15 mm, exserted 5–8 mm beyond calyx margin; limb expanded 12–20 mm. Styles hirtellous. Anthers included, glabrous. Capsules included, 5–7 mm. 2n = 28, 30.


Phenology: Flowering (Feb–)May–Aug(–Oct).
Habitat: Drainage ditches, springs, seeps, wet meadows, margins of ponds and small streams, marshy areas.
Elevation: 1400–2500 m.

Distribution

Calif., Colo., Nev., Utah.

Discussion

Erythranthe utahensis is characterized by its erect stems, prolifically produced filiform rhizomes, basal leaves short-petiolate to subsessile and cauline sessile, blades suborbicular to broadly ovate or depressed ovate with thin-walled villous-glandular hairs on both surfaces, margins subentire, proximal pedicels elongating to 75 mm, and calyces open at maturity.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe utahensis"
triangular-blunt +
loculicidal +
Guy L. Nesom +  and Naomi S. Fraga +
(Pennell) G. L. Nesom +
rosulate +  and subrosulate +
not persistent +
usually truncate;broadly cuneate +
Mimulus glabratus subsp. utahensis +
4 cm40 mm <br />0.04 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (4 cm40 mm <br />0.04 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
suborbicular;broadly elliptic broadly ovate or depressed-ovate +
? (?) +  and ? (?) +
12mm;35mm +
compressed +, inflated +  and tubular +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Utah monkeyflower +
regular +  and bilabiate +
Calif. +, Colo. +, Nev. +  and Utah. +
1400–2500 m. +
hairy +  and glabrous +
nodding;spreading;nodding;spreading;erect +
reduced +
Drainage ditches, springs, seeps, wet meadows, margins of ponds and small streams, marshy areas. +
glandular +, eglandular +, thin-walled +  and gland-tipped +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
cauline +  and basal +
largest +  and equal-sized +
expanded +
? (?) +  and ? (?) +
mostly triangular;deltate +
reduced +  and longer +
subentire +  and mucronulate shallowly dentate or denticulate +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
proximalmost +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering (Feb–)May–Aug(–Oct). +
Phytoneuron +
flattened +  and ellipsoid +
3 +  and 5 +
proximal +  and middle +
few-branched +  and simple +
decumbent-ascending;erect +
4-angled +  and terete +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
pilose +, glabrate +  and sparsely stipitate-glandular +
Mimulus sect. Erythranthe +  and Mimulus subg. Synplacus +
Erythranthe utahensis +
Erythranthe +
species +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not closing +
rooting +  and rhizomatous +
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hirtellous +, stipitate-glandular +  and short-villous +
compressed +, inflated +  and ovate-cylindric +
1.1 cm11 mm <br />0.011 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
perennial +  and annual +
herb +  and subshrub +
terrestrial +  and aquatic +
semiaquatic +  and terrestrial +
9 +, 8 +  and 7 +