CHENOPODIACEAE. 



VOL. II. 



13. Chenopodium Bonus-Henricus L. Good 

 King Henry. Perennial Goosef oot. Fig. 1689. 



Chenopodium Bonus-Henricus L. Sp. PI. 218. 1753. 

 Blitum Bonus-Henricus Reichb. Fl. Germ. Exc. 582. 



1830-32. 



Perennial by a thick rootstock, glabrous, dark 

 green, not mealy; stem erect, usually stout, simple 

 or little branched, channeled, i-2i tall. Leaves 

 broadly triangular-hastate, palmately veined, entire 

 or undulate (rarely with i or 2 small teeth), the 

 apex and basal lobes usually acute, the lower long- 

 petioled (petiole often twice as long as the blade), 

 the upper much smaller and short-petioled ; flowers 

 in terminal and axillary, simple^ or panicled, com- 

 monly dense spikes sometimes 3'-^ long; calyx 4- 

 5-parted, the segments not longer than the fruit; 

 styles elongate; seed vertical, or that of terminal 

 flowers horizontal, black, shining, blunt-edged; 

 embryo a complete ring. 



^ In waste places, Nova Scotia and Ontario to Massa- 



chusetts and southern" New York. Naturalized from Europe. All good. English mercury. Wild 

 spinach. .Fat-hen. Roman plant. Elite. Mercury-goosefoot. Smiddy-leaves. Markery. June-sept. 



14. Chenopodium Botrys L.- Feather Geranium. Jerusalem Oak. Fig. 1690. 



Chenopodium Botrys L. Sp PI. 219. 1753. 



Annual, green, glandular-pubescent and viscid, 

 strong-scented ; stem slender, erect, simple or 

 branched, 8'-2 tall. Leaves ovate or oblong, deeply 

 and usually irregularly pinnately lobed, acute or 

 obtuse at the apex, petioled, '-2' long, or the upper- 

 most much smaller, the lobes mostly obtuse and 

 dentate ; flowers in numerous loose axillary cymose 

 panicles mostly longer than the leaves; calyx 

 3-5-parted, the segments lanceolate, acute, thin, 

 very pubescent, rather longer than the utricle; seed 

 horizontal or vertical, firmly attached to the peri- 

 carp ; embryo an incomplete ring. 



In waste places, Nova Scotia to Minnesota and Wash- 

 ington, southeastern New York, Kentucky and Mexico. 

 Naturalized from Europe. Native also of Asia. The 

 leaves fall in autumn, leaving the panicles as narrow 

 naked wands. Turnpike-geranium. Hindheal. Ambrose. 

 July-Sept. 



Chenopodium incisum Poir., of tropical America, 

 with puberulent flowers and acute leaf-lobes is reported 

 as established in Maine. 



15. Chenopodium ambrosioides L. Mexican Tea. Fig. 1691. 



Chenopodium ambrosioides L. Sp. PI. 219. 1753- 

 Chenopodium anthelminticum L. Sp. PI. 220. 1753- 

 Chenopodium ambrosioides var. anthelminticum A. 

 Gray, Man. Ed. 5, 408. 1867. 



Annual or southward perennial, glabrous or 

 slightly glandular-pubescent, green, not mealy, 

 strong-scented, stem much branched, ascending 

 or erect, leafy, 2-3i high, angular and grooved. 

 Leaves ovate, oblong, or lanceolate, obtuse or 

 acute at the apex, petioled, repand-dentate, undu- 

 late, coarsely dentate, incised, or the upper en- 

 tire, i '-5' long, the upper numerous and much 

 smaller; flowers in small dense axillary often 

 leafy spikes, mostly shorter than the subtending 

 leaves; calyx usually 3-parted, completely en- 

 closing the fruit ; pericarp readily separable from 

 the seed; seed horizontal or vertical, shining; 

 embryo an incomplete ring. 



In waste places, Maine and Ontario to Florida, 

 west across the continent to California. Natural- 

 ized from tropical America. Introduced as a weed 

 also into southern Europe and Asia. Consists of 

 numerous races, the spikes leafy to leafless. Aug.- 

 Oct. 



