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Published In: Repertorium Specierum Novarum Regni Vegetabilis 26(7–15): 153. 1929. (Repert. Spec. Nov. Regni Veg.) Name publication detail
 

Project Name Data (Last Modified On 8/11/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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19. Chenopodium standleyanum Aellen (woodland goosefoot)

Pl. 355 j, k; Map 1539

Plants annual, without an odor. Stems 20–120(–200) cm long, erect or ascending (sometimes arched), usually much-branched above the base, glabrous, sometimes slightly reddish-tinged or reddish-striped. Leaves sessile or short-petiolate. Leaf blades 1–5(–8) cm long, mostly 3–6 times as long as wide (3–15 mm wide), narrowly lanceolate to oblong-lanceolate or lanceolate, those of the lowermost leaves occasionally narrowly ovate to ovate-triangular, sharply pointed at the tip, angled at the base, rarely with a shallow pair of basal lobes, green to dark green, relatively thin and herbaceous in texture, the margins otherwise entire or shallowly few- to less commonly several-toothed, the upper surface glabrous or sparsely white-mealy, the undersurface sparsely to moderately white-mealy. Venation noticeably branched, with 1 or 3 main veins. Inflorescences axillary and terminal, consisting of short spikes with small clusters of flowers, the terminal spikes usually grouped into small panicles. Flowers not all maturing at the same time. Calyx 5-lobed to below the midpoint, extending past the widest part of the fruit but not reaching the stylar area, leaving much of the portion of the fruit above the rim exposed at maturity, the lobes 0.5–0.7 mm long, oblong-obovate, rounded at the tip, flat, somewhat rounded or pouched, rarely narrowly and shallowly keeled dorsally, glabrous or sparsely white-mealy. Stamens 5. Stigmas 2. Fruits (1.0–)1.2–1.5 mm wide, depressed-ovoid, the seeds positioned horizontally, the wall thin, membranous, and somewhat translucent, smooth, easily separated from the seed. Seeds black, shiny, smooth to slightly roughened, rounded along the rim. 2n=18. June–October.

Scattered nearly throughout the state (eastern U.S. and adjacent Canada west to Montana and New Mexico). Upland forests, tops and ledges of bluffs, banks of streams and rivers, and rarely bottomland forests and edges of upland prairies; also roadsides, railroads, and rarely crop fields.

 


 

 
 
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