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.
... more about "Monolepis nuttalliana"
Noel H. Holmgren +
(Schultes) Greene +
Blitum nuttallianum +
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 +
Usually moist, subalkaline clays, often in partial shade or open disturbed habitats +
Flowering early spring-mid summer, fruiting through Aug. +
Fl. Francisc., +
Weedy +  and Illustrated +
Monolepis chenopodioides +
Monolepis nuttalliana +
Monolepis +
species +