Chenopodium. CVI. CHENOPODIACE^. 469 



fruit ; stamens 5 ; styles 2 ; utricle membranaceous ; seed lenticular, 

 vertically depressed. — Mostly ® weeds with alternate leaves. Fls. 

 glomerate., paniculate. 



1. C. ALBUM (and C. viride. Linn.') White Goose-foot. Hogweed. 



Lvs. rhomboid-ovate, crowded, entire at base, the upper ones oblong, very 

 entire ; rac. branched, leafy, smooth. — ® A weed, common in cultivated 

 grounds. Can. and N. States. Stem 2 — 3f high, furrowed, smooth, branching, 

 leaves more or less mealy as also the whole plant. Flowers numerous, .small 

 green, in irregular, terminal, erect racemes. July — Sept. 



2. C. RUBRUM. Bed Goose-foot. 



lyvs. rhomboid-triangular, deeply toothed and sinuate ; rac. erect, com- 

 pound, leafy. — (l) A weed in waste grounds, rubbish, &c., N. Eng. and Brit. 

 Am. Stem reddish, IJ — 2f high, with short branches, very compound, and with 

 compact clusters of small, reddish-green flowers. Leaves dark green, the upper 

 ones small, and intermixed with the flowers. July. 



3. C. HYBRiDUM. Tall Goose-foot. 



Lvs. cordate, angular-toothed, acuminate ; rac. branched, subcjTnose, divari- 

 cate, leafless. — A weed in waste places, &c., N. Eng. ! to Ky. ! rather taller than 

 the foregoing. Stem slender, 2— 3f high, bearing a loose, branching cluster of 

 unsightly and ill-scented flowers, remote from the leaves. Leaves bright green, 

 with large, remote teeth and a tapering point. July. ^ 



4. C. RHOMBIFOLIUM. Muhl. 



Lvs. rhombic-triangular, acute, sinuate-dentate, upper ones lanceolate, 

 cuneate at base; rac. axillary, erect, mostly leafless; bracts minute, inflexed. — 

 Penn. and Ohio. Plant yellowish-green, 2— 3f high. Stem branching, angular 

 ■with stripes of a deeper green. Leaves 2 — 3' by 1 — IJ', widest near the base, 

 with a few acute dentures, petioles nearly half as long. Flowering branches 

 shorter than the leaves, axillary, nearly leafless, with several roundish, dense 

 clusters of green flowers. 



5. C. AMBROsioiDES. Ambrosia Goose-foot. 



Lvs. lanceolate, remotely dentate; rac. simple, axillary, leafy. — Fields and 

 roadsides, N. Eng. to 111. Plant rather tragrant. Stem 1— 2f high, much 

 branched, angular, slightly pubescent. Leaves acute at each end (the upper 

 ones nearly linear), about 4 times as long as wide, the petioles 0— i' long. 

 Flowers green, in sessile clusters on short, erect, slender, leafy branches. Sta- 

 mens exsert. Aug. Sept. 



6. C. BoTRYs. Oak-of-Jerusalevi. 



Lvs. oblong, sinuate ; rac. much divided. — Sandy fields, &c., N. Eng. to 

 111. This plant is sometimes cultivated both on account of its fragrance, and 

 the remarkable appearance of its compound clusters of innumerable flowers. 

 Plant 1 — 3f high, viscid-pubescent. Leaves petiolate, the sinuses deep, giving 

 them some resemblance to oak leaves. The branches put forth numerous leaves 

 and short, axillary clusters on every side, forming long, leafy, cylindric, green, 

 compound racemes, of which the central one is much the tallest. June, t 



7. C. ANTHELMrNTicuM. Worm-sced. 



L/vs. oblong-lanceolate, toothed ; spike simple, slender, interrupted, leafless. 

 — Maine ! to 111. A strong-scented species, said to be a good vermifuge, as 

 both its specific and common name would imply. Stem IJ — 2f high, its branches 

 ending in long spikes of green, inconspicuous flowers. Aug. 



8. C. GLAUCUM. Sea-green Goose-foot. 



Lvs. oblong and ovate-oblong, repand-sinuate on the margin, glaucous be- 

 neath ; spikes simple, leafless, glomerate, axillary and terminal. — N. Y. Muhl. 



9. C. MARITIMDM. 



Lvs. linear, subulate, fleshy, semi-cylindrical ; Jls. in sessile, axillary clus- 

 ters ; sta. shorter than the sepals. — A fleshy plant growing in salt meadows 

 Can. to Flor. Stem IJ — 2f high, branching. Leaves numerous, very acute* 

 J— I' long. Flowers in axillary glomerules, green. Utricle thin and semi- 

 transparent, containing a black and shining seed. Aug. Sept. 



