GOOSEFOOT FAMILY. 571 
2. Chenopodium glaucum LI, Oak-leaved Goosefoot. (Fig. 1360.) 
Chenopodium glaucum I,. Sp. Pl. 220. 1753. 
Blitum glaucum Koch, Syn. Fl. Germ, 608. 1837. 
Annual, succulent, stem usually much branched, 
decumbent or prostrate, or with erect branches, 4’— 
18’ high. Leaves oblong, lanceolate or ovate-lan- 
ceolate, slender-petioled or the uppermost nearly 
sessile, obtuse or acute at the apex, mostly narrowed 
at the base, white-mealy beneath, dark green above, 
1/-2/ long, the lower or all of them sinuate-dentate 
or lobed; flowers in sniall axillary often branched 
spikes, the clusters usually shorter than the leaves, 
or the upper panicled; calyx about 14’ broad, its 
segments oblong or obovate, obtuse, neither fleshy 
nor keeled in fruit; utricle brown, depressed, its 
summit not completely covered by the calyx; seed 
of lateral flowers vertical, thick, somewhat ex- 
serted, that of terminal flowers commonly horizon- 
tal; embryo a complete ring. 
A weed in waste places throughout North America 
except the extreme north. Naturalized from Europe; 
now found in most cultivated areas of the globe. 
June-Sept. 
3. Chenopodium leptophyllum (Mogq.) Nutt. Narrow-leaved Goosefoot. 
(Fig. 1361.) 
Chenopodium album var. leptophyllum Mog. in DC. 
Prodr, 13: Part 2,71. 1849. 
ee ke Cal leplophyllum Nutt.; Moq. in DC. Prodr. 
13: Part 2,71. As synonym. 18) 
49. 
Chenopodium leptophyllum var. oblongifolium §, 
Wats. Proc. Am. Acad. 9:95. 1874. 
Annual, scarcely succulent, stem slender, usually 
erect, striate or grooved, at least when dry, branched, 
6/-2 4° tall, mealy above, the branches erect-ascend- 
ing. Leaves linear to oblong, white-mealy beneath, 
green above, acute or acuminate, or the lower ob- 
tuse, entire or the lower rarely toothed, short-peti- 
oled, 14’-114’ long, 1’’-3/’ wide, 1-3-nerved; flowers 
in continuous or interrupted axillary and terminal 
simple or branched spikes; calyx about %4’’ broad, 
its segments strongly keeled and nearly covering 
the fruit; seed horizontal, readily detached from 
the pericarp; embryo a complete ring. 
In dry soil, Manitoba and the Northwest Territory to 
Missouri, New Mexico and Arizona, Also on the 
shores of Lake Erie and on sands of the s¢ ashore, 
Connecticut to New Jersey. July-Sept. 
Chenopodium leptophyllum subglabrum S. Wats. Proc. Am. Acad. 9:95. 1874. 
Leaves scarcely mealy or quite green; flowers 
loosely clustered. Western Nebraska and Colorado. 
4. Chenopodium polyspérmum L. 
Many-seeded Goosefoot. (Fig. 1362.) 
Chenopodium polyspermum 1, Sp. Pl. 220. 1753. 
Annual, glabrous, not mealy, stem stout or slen- 
der, erect or decumbent, commonly much branched, 
striate, 6’-3° high. Leaves oblong, elliptic or 
ovate, slender-petioled, entire, thin, green on both 
sides, obtuse at the apex, narrowed rounded or 
truncate at the base, 1/-3’ long, 4//-1%’ wide; 
flowers in loose axillary and terminal panicles; 
calyx less than 1’’ wide, its segments oblong, sub- 
acute or obtuse, somewhat scarious, not keeled, not 
completely covering the top of the fruit; seed 
firmly attached to the pericarp, horizontal; embryo 
a complete ring. 
In waste places and ballast, Massachusetts to New 
Jersey. Adventive from Europe. July-Sept. 
