Monolepis nuttalliana

(Schultes) Greene

Fl. Francisc., 168. 1891.

Common names: Nuttall pover tyweed
WeedyIllustrated
Basionym: Blitum nuttallianum Schultes in J. A. Schultes and J. H. Schultes, Mant. 1: 65. 1822
Synonyms: Monolepis chenopodioides Moquin-Tandon
Treatment appears in FNA Volume 4. Treatment on page 301. Mentioned on page 300.

Stems prostrate to ascending, 0.5–2 (–5) dm, herbage sparsely farinose when young, becoming glabrate. Leaves: petiole 0.1–3 (–6) cm, longest on proximal leaves, distal leaves sometimes sessile; blade of principal leaves hastately lobed near base, narrowly triangular, lanceolate, narrowly elliptic, or linear, 1–3 (–4) cm × 2–15 (–25) mm at lobes, base narrowly attenuate or cuneate, margins sometimes with few teeth distally, apex obtuse to rounded; distal leaves sometimes completely unlobed. Flowers: perianth segment 1, spatulate or obtuse, 1 mm; stamen 1. Utricles 1.1–1.5 mm; pericarp readily separating from seeds, whitish, membranous, cellular-reticulate. Seeds dark-brown to black, laterally flattened, broadly ovoid. 2n = 18.


Phenology: Flowering early spring-mid summer, fruiting through Aug.
Habitat: Usually moist, subalkaline clays, often in partial shade or open disturbed habitats
Elevation: 100-3000 m

Distribution

V4 575-distribution-map.gif

Alta., B.C., Man., N.W.T., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Kans., Minn., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tex., Utah, Wash., Wyo., n Mexico

Discussion

Selected References

None.

Lower Taxa

None.

"longest" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Monolepis nuttalliana"
obtuse +  and rounded +
Noel H. Holmgren +
(Schultes) Greene +
slippery +
aromatic +
cuneate +  and attenuate +
Blitum nuttallianum +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
lanceolate +, triangular +  and lobed +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Nuttall pover tyweed +
Alta. +, B.C. +, Man. +, N.W.T. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Idaho +, Kans. +, Minn. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Okla. +, Oreg. +, S.Dak. +, Tex. +, Utah +, Wash. +, Wyo. +  and n Mexico +
100-3000 m +
1-many-flowered +
Usually moist, subalkaline clays, often in partial shade or open disturbed habitats +
glabrate +  and farinose +
succulent +
not winged +  and winged +
lobed +  and serrate-dentate +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
obtuse +  and spatulate +
1 cm10 mm <br />0.01 m <br /> (?) +
nonadherent +  and adherent +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering early spring-mid summer, fruiting through Aug. +
Fl. Francisc., +
pointing +  and ascending +
basal +, median +  and position +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
brown +  and black +
verrucate +  and striate +
dark-brown +  and black +
ovoid +  and flattened +
Weedy +  and Illustrated +
cylindric +
not armed +  and not jointed +
opposite +  and alternate +
prostrate +  and ascending +
not fleshy +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Monolepis chenopodioides +
Monolepis nuttalliana +
Monolepis +
species +
flattened +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
glabrous +  and farinose +