573 



GOOSEFOOT FAMILY. 



8. Chenopodium urbicum L,. Upright 

 or City Goosefoot. (Fig. 1366.) 



Chenopodium urbicum L,. Sp. PI. 218. 175^. 



Annual, green or but slightly mealy, stem com- 

 monly stout, erect, branched or simple, channeled, 

 i-3 tall. Leaves hastate or triangular-ovate, 

 acute at the apex, truncate subcordatc or abruptly 

 narrowed at the base, stout-pelioled, coarsely and 

 irregularly dentate or the uppermost entire, the 

 larger $'-5' long; spikes in terminal and axillary 

 narrow erect panicles, the upper longer than the 

 leaves; calyx */?." broad, its segments oblong, ob- 

 tuse, herbaceous, not keeled and not entirely en- 

 closing the fruit; seed hori/.ontal, rather firmly 

 attached to the pericarp, its margins rounded; 

 embryo a complete ring. 



In waste places, especially in the cities, Nova 

 tia and Ontario to southern New York. Advcntive 

 from Europe. Much less common than the following 

 species. June-Sept. 



9. Chenopodium murale I,. Nettle- 

 leaved Goosefoot. SowhaiiL-. (Fix. 1367.) 



Chenopodium mutate I.. Sp. PI. 719. 1753. 



Annual, scarcely or not at all mealy, some- 

 what scurfy above, stem erect or decumbent, 

 usually branched, i-2# high, leafy to the 

 summit. Leaves rhombic -ovate, thin, bright 

 green on both sides, acute or acuminate at the 

 apex, sharply and coarsely sinuate-dentate, 

 broadly cuneate 6r subtruncate at the base, 

 slender-petioled, 2'-4' long; flowers in loose ax- 

 illary panicles shorter than the leaves, often not 

 longer then the petioles; calyx-segments not en- 

 tirely enclosing the utricle; seed sharp-edged, 

 horizontal, firmly attached to the pericarp; em- 

 bryo completely annular; stamens 5. 



In waste places. Maine to Michigan and British 

 Columbia, smith to l'lori<la and Mexico. Natural- 

 ized from Europe. Widely distributed as a u 

 civilized regfions. Ji: 



10. Chenopodium hybridum L. 



Chenopodium hybridum L. Sp. PI. 219. 1753. 



Annual, bright green, not mealy, sometimes 

 more or less scurfy; stem slender, erect, usually 

 branched, z~4)4 tall. Leaves ovate or rhom- 

 bic-ovate, long-acuminate at the apex, truncate 

 rounded or subcordate at the base, thin, slen- 

 der-petioled, sharply dentate with 1-4 large 

 acute teeth on each side, or the upper lanceo- 

 late and entire, the lower 4 / -7 / long; flowers in 

 large axillary and terminal panicles; calyx 

 about i" broad, its segments oblong, rather ob- 

 tuse, herbaceous, slightly keeled, incompletely 

 covering the fruit; stamens 5; seed horizontal, 

 sharp-edged, firmly attached to the pericarp; 

 embryo a complete ring. 



In woods and thickets, sometimes in waste places, 

 Quebec to the Northwest Territory and British 

 Columbia, south to southeastern New York, Kt-n 

 tucky, Kansas, Utah and New Mexico. Also in 

 Europe. July-Sept. 



Maple-leaved Goosefoot. (Fig. 1368.) 



