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Chilean wormseed

Australian goosefoot, clammy glandular-goosefoot, clammy goosefoot, small crumbweed, Tasmanian goosefoot

Habit Plants annual.
Stems

erect to ascending, branched, 4–6 dm, ± glandular-pubescent, white-villous.

prostrate to suberect, much-branched to ± simple, 0.1–4.5 dm, pilose with segmented (uniseriate) hairs and sessile or stipitate glandular hairs.

Leaves

aromatic, distal leaves sessile;

petiole 2–2.5 mm;

blade lanceolate, 2–9 × 0.5–4 cm, base cuneate, margins of distal leaves shallowly dentate to sinuate-pinnatifid, apex acuminate, villous and copiously gland-dotted (rarely nearly glabrous).

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

terminal and axillary spikes, 3–15 cm;

glomerules globose, 1.7–2.3 mm diam.;

bracts leaflike, narrowly ovate, 1–1.8 cm, apex acuminate.

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, connate for ca. 1/2 their length, distinct portion ovate, 0.7–1 mm, apex obtuse, rounded abaxially, villous, covering fruit at maturity;

stamens 5;

stigmas 3.

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 nonadherent, glandular.

ovoid;

pericarp adherent, membranaceous, slightly rugose.

Seeds

vertical, black, ovoid, 0.5–0.8 × 0.8 mm;

seed coat smooth.

reddish brown, ovoid, 0.5–0.7 × 0.5–0.6 mm, margins keeled or rounded;

seed coat smooth.

Dysphania chilensis

Dysphania pumilio

Phenology Fruiting summer–fall. Fruiting late summer–fall.
Habitat Waste areas Waste areas on rocky, sandy, or gravelly soils, sidewalks, rare in moist soils in forests
Elevation 0-100 m (0-300 ft) 0-1200 m (0-3900 ft)
Distribution
from FNA
CA; OR; native to s South America [Introduced in North America]
from FNA
AR; CA; CT; DC; FL; GA; IL; KS; KY; LA; MA; MO; NJ; NV; NY; OH; OK; OR; PA; RI; SC; TN; TX; VA; WA; WI; Australia [Introduced in North America; introduced in subtropical and warm-temperate regions]
[WildflowerSearch map]
[BONAP county map]
Discussion

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

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 4, p. 270. FNA vol. 4, p. 274.
Parent taxa Chenopodiaceae > Dysphania > sect. Adenois Chenopodiaceae > Dysphania > sect. Orthospora
Sibling taxa
D. ambrosioides, D. anthelmintica, D. aristata, D. botrys, D. carinata, D. cristata, D. graveolens, D. multifida, D. pumilio
D. ambrosioides, D. anthelmintica, D. aristata, D. botrys, D. carinata, D. chilensis, D. cristata, D. graveolens, D. multifida
Synonyms Chenopodium chilense, Chenopodium ambrosioides var. chilense, Chenopodium ambrosioides var. vagans Chenopodium pumilio, Teloxys pumilio
Name authority (Schrader) Mosyakin & Clemants: Ukrayins’k. Bot. Zhurn., n. s. 59: 382. (2002) (R. Brown) Mosyakin & Clemants: Ukrayins’k. Bot. Zhurn., n. s. 59: 382. (2002)
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