Dysphania pumilio

(R. Brown) Mosyakin & Clemants

Ukrayins’k. Bot. Zhurn., n. s. 59: 382. 2002.

Common names: Clammy goosefoot small crumbweed
IntroducedIllustrated
Basionym: Chenopodium pumilio R. Brown Prodr., 407. 1810
Synonyms: Teloxys pumilio (R. Brown) W. A. Weber
Treatment appears in FNA Volume 4. Treatment on page 274. Mentioned on page 268, 271.

Stems prostrate to suberect, much-branched to ± simple, 0.1–4.5 dm, pilose with segmented (uniseriate) hairs and sessile or stipitate-glandular hairs. Leaves malodorous; petiole 0.3–1.5 cm; blade narrowly to broadly elliptic to ovate, 0.5–2.7 × 0.3–1.5 cm, somewhat reduced in inflorescence, base cuneate, apex obtuse, glandular-pilose. Inflorescences lateral cymes or glomerules; glomerules subglobose, 1.2–2.5 mm diam.; bracts leaflike, 3–4.5 mm, elliptic, margins crenate-dentate, apex obtuse. Flowers: perianth segments 5, distinct nearly to base, distinct portions narrowly elliptic to narrowly oblong, 0.6–0.7 × 0.2–0.3 mm, apex acute, normally rounded abaxially, usually glandular-pilosulose, becoming crustaceous and white in fruit; stamens absent or 1; stigmas 2. Achenes ovoid; pericarp adherent, membranaceous, slightly rugose. Seeds reddish-brown, ovoid, 0.5–0.7 × 0.5–0.6 mm, margins keeled or rounded; seed-coat smooth.


Phenology: Fruiting late summer–fall.
Habitat: Waste areas on rocky, sandy, or gravelly soils, sidewalks, rare in moist soils in forests
Elevation: 0-1200 m

Distribution

V4 502-distribution-map.gif

Introduced; Ark., Calif., Conn., D.C., Fla., Ga., Ill., Kans., Ky., La., Mass., Mo., Nev., N.J., N.Y., Ohio, Okla., Oreg., Pa., R.I., S.C., Tenn., Tex., Va., Wash., Wis., Australia, in subtropical and warm-temperate regions

Discussion

This species has gone under the misapplied name Chenopodium carinatum R. Brown (now 9. Dysphania carinata).

Selected References

None.

Lower Taxa

None.

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

... more about "Dysphania pumilio"
glandular-pilosulose +  and glandular-pilose +
Rounded (?) +, Acute (?) +  and Obtuse (?) +
crustaceous +
Steven E. Clemants +  and Sergei L. Mosyakin +
(R. Brown) Mosyakin & Clemants +
slippery +
aromatic +
cuneate +
Chenopodium pumilio +
0.5 cm5 mm <br />0.005 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
elliptic +  and ovate +
reduced +
0.3cm;1.5cm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
Clammy goosefoot +  and small crumbweed +
Ark. +, Calif. +, Conn. +, D.C. +, Fla. +, Ga. +, Ill. +, Kans. +, Ky. +, La. +, Mass. +, Mo. +, Nev. +, N.J. +, N.Y. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, Tenn. +, Tex. +, Va. +, Wash. +, Wis. +, Australia +  and in subtropical and warm-temperate regions +
0-1200 m +
symmetric +, or +  and uniseriate +
unisexual +  and bisexual +
aromatic +
glabrescent +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
subglobose +
Waste areas on rocky, sandy, or gravelly soils, sidewalks, rare in moist soils in forests +
stipitate-glandular +
segmented +
compound +  and simple +
malodorous +
reduced +
not winged +  and winged +
rounded +  and keeled +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
membranaceous +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Fruiting late summer–fall. +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Ukrayins’k. Bot. Zhurn., n. s. +
pointing +  and ascending +
basal +, median +  and position +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
smooth +  and rugose +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Introduced +  and Illustrated +
cylindric +
much-branched +  and more or less simple +
opposite +  and alternate +
prostrate +  and decumbent +
prostrate +  and suberect +
not fleshy +
filiform +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Teloxys pumilio +
Dysphania pumilio +
Dysphania sect. Orthospora +
species +
polygamous +, dioecious +  and monoecious +