Erythranthe carsonensis

N. S. Fraga

Aliso 30: 59, figs. 17–21. 2012.

Common names: Carson Valley monkeyflower
EndemicConservation concern
Synonyms: Mimulus rubellus var. latiflorus S. Watson
Treatment appears in FNA Volume 17. Treatment on page 384. Mentioned on page 378, 380, 385, 386.

Annuals, taprooted, densely compact. Stems erect, simple or branched from basal nodes, 2–7 (–8) cm, minutely glandular, internodes shortened, not evident. Leaves cauline, basal not persistent; petiole 0 mm; blade palmately 3-veined (in broader ones), linear to spatulate, (3–) 5–23 × 1–5 mm, base truncate to truncate-cordate, clasping, margins entire, apex acute to obtuse, surfaces minutely glandular. Flowers herkogamous, 1–35, from distal or medial to distal nodes. Fruiting pedicels (3–) 5–14 mm. Fruiting calyces campanulate to widely urceolate, 4–7 mm, margins distinctly toothed or lobed, minutely glandular, ribs thickened, lobes pronounced, erect. Corollas yellow, palate red-dotted and 1 large central spot, bilaterally symmetric, strongly bilabiate; tube-throat cylindric, distinct from abruptly expanding throat, (5–) 7–11 mm, exserted beyond calyx margin; limb expanded 7–12 (–15) mm, each lobe 2-fid, palate densely bearded. Styles glabrous. Anthers included, glabrous. Capsules included, 3–6 mm.


Phenology: Flowering Mar–Jun.
Habitat: Openings in sage brush/bitterbrush scrub in sand of decomposed granite.
Elevation: 1400–1800 m.

Discussion

Erythranthe carsonensis is restricted to the Carson Valley, Eagle Valley, and Washoe Valley region of Nevada and adjacent California, with one known disjunct occurrence about 58 km to the north in Nevada. The species was previously included in the broader concept of E. montioides but can be distinguished by its much branched and compact habit, linear to spatulate leaves with clasping bases, calyx with glabrous margins, and larger corolla with one large red spot in the center. Erythranthe carsonensis has been impacted by agriculture, urbanization, and other anthropogenic changes.

Selected References

None.

Lower Taxa

None.
... more about "Erythranthe carsonensis"
loculicidal +
acute +  and obtuse +
Guy L. Nesom +  and Naomi S. Fraga +
N. S. Fraga +
rosulate +  and subrosulate +
not persistent +
truncate;truncate-cordate +
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 /> (2.3 cm23 mm <br />0.023 m <br />) +
linear;spatulate +
not leathery +  and semifleshy +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
compressed +, inflated +  and tubular +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Carson Valley monkeyflower +
regular +  and bilabiate +
compressed +
Calif. +  and Nev. +
1400–1800 m. +
hairy +  and glabrous +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
nodding;spreading;nodding;spreading;erect +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
reduced +
Openings in sage brush/bitterbrush scrub in sand of decomposed granite. +
alternate +, opposite +, rosulate +  and subrosulate +
persistent +  and deciduous +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
expanded +
pronounced +
3 (?) +  and Not 5 (?) +
reduced +  and longer +
lobed +  and toothed +
basal +  and superior +
tenuinucellate +  and unitegmic +
orthotropous +  and anatropous +
0 cm0 mm <br />0 m <br /> (?) +
Flowering Mar–Jun. +
flattened +  and ellipsoid +
3 +  and 5 +
Endemic +  and Conservation concern +
proximal +  and middle +
branched +  and simple +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
hairy +  and glandular-hairy +
4-angled +  and terete +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Mimulus rubellus var. latiflorus +
Erythranthe carsonensis +
Erythranthe +
species +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
expanding +
campanulate +  and widely urceolate +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
perennial +  and annual +
herb +  and subshrub +
terrestrial +  and aquatic +
semiaquatic +  and terrestrial +
9 +, 8 +  and 7 +