Dysphania chilensis |
Dysphania pumilio |
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Chilean wormseed |
Australian goosefoot, clammy glandular-goosefoot, clammy goosefoot, small crumbweed, Tasmanian goosefoot |
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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 |
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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 |
CA; OR; native to s South America [Introduced in North America] |
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]
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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.) |
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Source | FNA vol. 4, p. 270. | FNA vol. 4, p. 274. |
Parent taxa | ||
Sibling taxa | ||
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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