GOOSEFOOT FAMILY. 



Oak-leaved Goosefoot. (Fig. 1360.) 



Narrow-leaved Goosefoot. 



2. Chenopodium glaucum L,. 

 Chenopodium glaucum L. Sp. PI. 220. 1753. 

 Blilum 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, 

 i'-2' long, the lower or all of them sinuate-dentate 

 or lobed; flowers in small axillary often branched 

 spikes, the clusters usually shorter than the leaves, 

 or the upper panicled; calyx about W 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 (Moq.) Nutt. 



(Fig. 1361.) 



Chenopodium album var. lfptphyllum Moq. in DC. 



Prodr. 13: Part 2, 71. 1849. 

 Chenopodium leptophyllum Nutt.: MIKJ. in IK.". Prodr. 



13: Part 2, 71. As synonym. : 

 Chenopodium leptophyllum var. oblongifoliitm S. 



Wats. Proc. Am. A cad. 9: 95. 1874. 



Annual, scarcely succulent, stem slender, usually 

 erect, striate or grooved, at least when dry, branched, 

 6'-2> 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-pet i- 

 oled, K'-i^'long, i"-$" wide, i-3-nerved; flowers 

 in continuous or interrupted axillary and terminal 

 simple or branched spikes; calyx about t - 1 " 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 thv Northwest Territory to 

 Missouri, New Mexico and Arizona. Also on the 

 shores of Lake Erie and on sands of the seashore, 

 Connecticut to New Jersey. July-Sept. 

 Chenopodium leptophyllum subglabrum S. Wats. Proc. Am. A cad. 9: 95. 1874. 

 Leaves scarcely mealy or quite green; flowers 

 loosely clustered. Western Nebraska and Colorado. 



4. Chenopodium polyspermum L,. 

 Many-seeded Goosefoot. (Fig. 1362.) 



Chenopodium polyspermum L. Sp. PI. 220. i~53- 



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, \'-$' long, 4 // -i# / wide; 

 flowers in loose axillary and terminal panicles; 

 calyx less than i" 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 t 

 Jersey. Adventive from Europe. July-Sept. 



