Stems erect, branched, 1-6(-10) dm, glabrous (to sparsely farinose when young); proximal branches decumbent. Leaves nonaromatic; petiole 1-2.5 cm; blade triangular, ovate, or rhombic-ovate, 0.8-4(-8) × 0.4-3(-5) cm, base cuneate to rounded, margins irregularly dentate, apex acute to acuminate, glabrous (rarely indistinctly farinose when young). Inflorescences glomerules in terminal and lateral panicles, 6-7 × 4-5 cm; glomerules subglobose, 2-4 mm diam., or some flowers not in glomerules; bracts absent. Flowers: perianth segments 5, distinct nearly to base; lobes ovate, 0.5-0.8 × 0.6-0.7 mm, apex acute to obtuse, keeled abaxially, farinose, covering fruit at maturity; stamens 5; stigmas 2, 0.2 mm. Achenes depressed-ovoid; pericarp adherent, pustulate, becoming smooth with maturity. Seeds lenticular, round, 1-1.5 mm diam.; seed coat black, minutely rugose to ± smooth. 2n = 18.
Chenopodium murale L., Sp. Pl. 219. 1753.
Anuales, erectas o ascendentes, no aromáticas, 0.150.6 m de alto, generalmente con ramas ascendentes desde la base. Hojas deltoides a rómbicas o rómbico-ovadas, 17.7 cm de largo y 0.75.1 cm de ancho, obtusas a atenuadas en el ápice, agudas a truncadas en la base, irregularmente dentadas a profundamente serradas, generalmente glabras en la haz, glabras a densamente farinosas en el envés, eglandulares; pecíolo 427 (70) mm de largo. Glomérulos sésiles a lo largo de los raquis ramificados; cáliz de 5 segmentos connados sólo en la base, aquillados, 11.3 mm de largo, farinosos, eglandulares; estambres 5, filamentos sobrepasando ligeramente a los lobos del cáliz; estigmas 2 ó 3, subulados, patentes. Utrículo parcialmente envuelto por el cáliz, pericarpo adherido a la semilla; semilla horizontal, 1.31.5 mm de largo y 1.21.4 mm de ancho, ligeramente tuberculada, opaca, café-rojiza, embrión envolviendo completamente al perisperma.
Conocida en Nicaragua por una sola colección (Stevens 10105) del basurero de la ciudad de Jinotega; ca 1200 m; fl y fr probablemente todo el año; indígena de Europa, Asia y Africa, ampliamente naturalizada como maleza en América.
Erect or ascending annuals to as much as 6 dm. tall, the branches ascending, often deeply sulcate, occasionally farinose, especially toward the extremities. Leaves somewhat lustrous and occasionally bullate above, glabrous to rather densely farinose below, deltoid to rhomb-ovate, marginally irregularly and acutely dentate, apically acuminate to attenuate and often mucronate, basally acute to truncate, 2.5-8 cm. long, 2-5 cm. broad, the petioles mostly 3-70 mm. long, sometimes quite as long as the blades. Flowers irregularly disposed in glomerules, the glomerules sessile along the dichotomously branching rhachises, these axillary and terminal, distally farinose. Sepals 5, subequal, ovate, obtuse, cucullate, 1-ribbed, slightly if at all carinate, farinose, basally connate, 1-1.5 mm. long; stamens 5, caducous, the filaments flattened, the anthers orbicular, exserted; ovary subglobose, the style quite short, the 2 (-3) stigmata ca. twice as long, spreading, irregularly glandular. Utricle partially enclosed by the sepals, the seed lenticular-cochleate, minutely tuberculate, dull reddish-brown, 1.2-1.5 mm. broad, horizontal, the pericarp adherent.
"Erect, branching annual to 8 dm; lvs long-petioled, deltoid to rhombic-ovate, acute or acuminate, sharply and coarsely toothed, truncate to broadly cuneate at base, sometimes a little white-mealy, to 8 × 6 cm; infls mostly axillary, divergent, branched; cal ± white- mealy, its 5 segments inconspicuously keeled on the back; seeds adnate to the pericarp, horizontal, dull black, sharply margined, 1.2–1.5 mm wide; 2n=18. Native of Europe, intr. in waste places in our range."
Minute greenish flowers in divaricately branched leafy cymes.
Annual normally much-branched herb up to 3 ft. high
Annual up to 90 cm. high, upright or spreading, normally much branched, green, rarely red-tinged, with mealy hairs especially on young parts but rarely densely clothed.
Pericarp very difficult to detach from seed. Seeds black, somewhat shining, 1.2–1.5 mm. in diam., acutely keeled; testa (seen under microscope) marked with very close minute rounded pits.
Perianth segments 5, papillose on margins and outside, each with a blunt raised green keel towards apex only.
Inflorescences leafy, composed of divericately branching cymes up to 5 cm. long, terminal and from upper and sometimes median axils.
Flowers greenish, minute, about 1–1.5 mm. in diam.
Leaves variable, commonly rhombic-ovate in outline, rarely narrower, (0.7) 1.5–9 × (0.4) 0.8–5 (7) cm., without any tendency for especially prominent basal lobes, but with several coarse irregular ascending usually sharp teeth (about 5–15 on each margin, rarely fewer).
Pericarp very difficult to detach from seed.
Seeds (Fig. 2/3, p. 3) black, somewhat shining, 1.2–1.5 mm. in diameter, acutely keeled; testa under microscope marked with very close minute rounded pits.
Inflorecences leafy, composed of divaricately branched cymes up to 5 cm. long, terminal and from upper axils.
Flowers greenish, minute, about 1–1.5 mm. in diameter.
Sepals 5, papillose on margins and outside, each with a blunt raised green keel towards apex only.
Annual up to 90 cm. high, upright or spreading, normally much branched, green, rarely red-tinged, mealy especially on young parts but rarely densely so.
Leaves variable, commonly rhombic-ovate, rarely narrower, about 1.5–9 cm. long and 0.8–5 (–7) cm. wide, without any tendency for especially prominent basal lobes, but with several coarse irregular ascending usually sharp teeth (about 5–15 teeth on each margin, rarely fewer).
|Sowbane, nettle-leaf goosefoot|