Erythranthe alsinoides

(Douglas ex Bentham) G. L. Nesom & N. S. Fraga

Phytoneuron 2012-39: 37. 2012.

Common names: Wing-stem or chickweed monkeyflower
Endemic
Basionym: Mimulus alsinoides Douglas ex Bentham Scroph. Ind., 29. 1835
Treatment appears in FNA Volume 17. Treatment on page 395. Mentioned on page 379.
Revision as of 18:00, 29 July 2020 by imported>Volume Importer
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Annuals, fibrous-rooted. Stems erect, usually simple, (0.5–) 2–6 (–15) cm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped, nodes 2 (or 3), usually red-tinged. Leaves basal and cauline; petiole 1–20 (–30) mm, distinctly 3-veined (winged); blade palmately 3-veined, lanceolate-ovate to ovate, elliptic, or suborbicular, 3–18 (–32) × 3–12 (–25) mm, base cuneate to truncate, margins dentate to denticulate or subentire, apex acute to obtuse or rounded, surfaces glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. Flowers herkogamous, 1–4 (–8), from distal or medial to distal nodes. Fruiting pedicels 15–32 mm, glandular-puberulent, hairs 0.1–0.2 mm, gland-tipped. Fruiting calyces purplish, slightly ridge-angled, campanulate-cylindric, weakly or not inflated, 5–8 mm, margins subtruncate, sparsely minutely stipitate-glandular, lobes 4, (0–) 0.5–1 mm, sometimes barely evident, 1 lobe usually slightly longer, margins appearing subtruncate, shallowly convex to rounded-mucronulate. Corollas yellow, abaxial limb with a large maroon splotch, also red-spotted, bilaterally symmetric, ± bilabiate; tube-throat funnelform-cylindric, 6–9 mm, exserted beyond calyx margin; throat open, palate villous, abaxial ridges low. Styles glabrous. Anthers included, glabrous. Capsules included, (3–) 5–7 mm.


Phenology: Flowering Mar–Jun.
Habitat: Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails.
Elevation: 10–1900 m.

Distribution

B.C., Calif., Idaho, Oreg., Wash.

Discussion

Erythranthe alsinoides is distinct in its short, erect stems with few nodes, small, mostly ovate to elliptic-ovate, petiolate leaves, minutely stipitate-glandular vestiture, small corollas with a prominent maroon splotch on the abaxial limb, small, non-inflated mature calyces and, most especially, by its nearly truncate calyx margin. Erythranthe pulsiferae is superficially similar to E. alsinoides but has larger calyces borne on divergent-arcuate pedicels, smaller leaf blades with attenuate to cuneate bases, and the corolla limbs are smaller and lack a prominent maroon splotch.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe alsinoides"
loculicidal +
acute +  and obtuse or rounded +
Guy L. Nesom +  and Naomi S. Fraga +
(Douglas ex Bentham) G. L. Nesom & N. S. Fraga +
rosulate +  and subrosulate +
not persistent +
cuneate to truncate +
Mimulus alsinoides +
1.8 cm18 mm <br />0.018 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
lanceolate-ovate;ovate elliptic or suborbicular +
not leathery +  and semifleshy +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
compressed +, inflated +  and tubular +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Wing-stem or chickweed monkeyflower +
regular +  and bilabiate +
compressed +
B.C. +, Calif. +, Idaho +, Oreg. +  and Wash. +
10–1900 m. +
hairy +  and glabrous +
nodding;spreading;nodding;spreading;erect +
reduced +
Open, rocky slopes, cliff faces, bluffs, mossy rock crevices, ledges, moist rocks, roadsides, along wet paths and trails. +
gland-tipped +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
cauline +  and basal +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
1 (?) +  and 4 (?) +
mostly triangular;deltate +
reduced +  and longer +
stipitate-glandular +
shallowly convex +  and rounded-mucronulate +
red-tinged +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Mar–Jun. +
Phytoneuron +
flattened +  and ellipsoid +
3 +  and 5 +
proximal +  and middle +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
glandular-puberulent +
4-angled +  and terete +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
glandular-puberulent +
Mimulus sect. Erythranthe +  and Mimulus subg. Synplacus +
Erythranthe alsinoides +
Erythranthe +
species +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
funnelform-cylindric +
glandular-puberulent +
inflated +, campanulate-cylindric +  and ridge-angled +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
perennial +  and annual +
herb +  and subshrub +
terrestrial +  and aquatic +
semiaquatic +  and terrestrial +
9 +, 8 +  and 7 +