72 CHENOPODIACEAE 



petioled and often entire ; flowers in dense capitate clusters in the axils of all but the lower 

 leaves, the uppermost clusters with the bract-like leaves much reduced or wanting, forming an 

 interrupted spike ; calyx-lobes fleshy, tinged with red, oblong ; utricle only partly covered by 

 the calyx, reddish brown; seed erect, 0.8 mm. long, the margin acute. 



Moist ground, mainly in the Boreal Zones; southern Alaska to the northern Sierra Nevada, California, and 

 east across the continent; also in Eurasia. Type locality: Tyrol, Austria. June-Aug. 



Chenopodium virgatum (L.) Jessen, Deuts. Exc.-Fl. 300. 1879. This is probably only a form of the 

 preceding species, from which it differs mainly in having the inflorescence leafy-bracted to the summit, and the 

 seeds with rounded margins. With the general range of the species, but less common. 



11. Chenopodium calif ornicum S. Wats. California Goosefoot, Soap Plant. 



Fig. 1492. 



Chenopodium anthelminticum var. hastatum Moq. in DC. Prod. 13 2 : 74. 1849. 

 Blitum calif ornicum S. Wats. Proc. Amer. Acad. 9: 101. 1874. 

 Chenopodium calif ornicum S. Wats. Bot. Calif. 2: 48. 1880. 



Perennial from a stout elongated fleshy root, sparsely farinose on the younger parts, glabrate 

 in age and bright green, stems several from each root, decumbent to nearly erect, stout, 2-8 dm. 

 long. Leaves deltoid, 4-10 cm. long and nearly as wide, hastate and coarsely dentate or sinuate- 

 dentate, the upper much reduced; petioles slender, those of the lower leaves equaling or exceed- 

 ing the leaves, the upper very short ; glomerules small, arranged in dense or somewhat inter- 

 rupted terminal almost leafless spikes, 9-18 cm. long; calyx cleft to about the middle, the lobes 

 obiong-ovate, green, not carinate, shorter than the utricle ; pericarp adherent ; seed vertical, 

 2 mm. broad. 



Plains and hillsides, Upper Sonoran Zone; central and southern California. Type locality: California. 

 March-June. 



12. Chenopodium carinatum R. Br. Tasmanian Goosefoot. Fig. 1493. 



Chenopodium carinatum R. Br. Prod. 407. 1810. 

 Salsola carinata Spreng. Syst. 1: 923. 1825. 

 Ambrina carinata Moq. Chenop. Enum. 41. 1840. 

 Blitum carinatum Moq. in DC. Prod. 13 2 : 81. 1849. 



Annual, glandular-villous throughout, the stems branching from the base, rather slender, 

 prostrate or decumbent, 2-A dm. long. Leaves oblong to ovate-oblong, 1-3 cm. long, sinuate- 

 dentate, narrowed at base ; petioles slender, about as long as the leaves, the uppermost much 

 reduced ; flowers in small axillary clusters ; calyx-lobes oblong, lanceolate, partly enclosing the 

 utricle, acute, covered with sessile yellowish glands, usually carinate ; utricle dark brown, 1 mm. 

 long ; seed vertical, the margin obtuse. 



Sandy soils, fields, and gardens; naturalized in the Pacific States, and widely spread from southern Oregon 

 to southern California. Native of Australia and Tasmania. June— Sept. 



13. Chenopodium ambrosioides L. Mexican Tea. Fig. 1494. 



Chenopodium ambrosioides L. Sp. PL 219. 1753. 



Botrys ambrosioides Nieuwl. Amer. Midi. Nat. 3: 275. 1914. 



Annual or short-lived perennial from a fleshy root, more or less glandular-pubescent 

 throughout and strong-scented, the stems erect, 5-10 dm. high, much branched, the lower 

 branches often spreading or decumbent. Leaves 3-8 cm. long, rhombic-ovate to oblong-lanceolate, 

 repand-dentate, undulate, or the upper reduced ones entire, narrowed to the usually short 

 petioles ; flowers in glomerules, arranged in short dense or interrupted spikes, these in age 

 forming an elongated slender compound spike, naked or nearly so; calyx-lobes ovate, covering 

 the utricle; pericarp very thin, deciduous; seed vertical or horizontal, subglobose, 0.6 mm. 

 broad, dark brown. 



Fields and waste places, especially in low moist ground; throughout the Pacific States, but most abundant 

 in southern California, widely distributed over the continent. Native of tropical America. June-Dec. 



Chenopodium ambrosioides var. anthelminticum (L.) A. Gray, Man. ed. 2: 364. 1856. Plants mostly 

 spreading or decumbent; leaves more pronouncedly toothed, often subpinnatifid; inflorescence of many ascending, 

 very slender, elongated, paniculate spikes, appearing leafless, the bracts being much reduced; seeds 0.9 mm. 

 broad. About the same range as the species, but especially prevalent in the Sacramento Valley, California. 



14. Chenopodium Botrys L. Jerusalem Oak, Feather Geranium. Fig. 1495. 



Chenopodium Botrys L. Sp. PI. 219. 1753. 



Botrys aromatica Nieuwl. Amer. Midi. Nat. 3: 275. 1914. 



Annual, the herbage densely glandular-viscid throughout and fragrant, the stems erect, 2-6 

 dm. high, much branched, the branches ascending. Leaves oblong to oval, 1-5 cm. long, sinuate- 

 pinnatifid, with rounded lobes, the uppermost reduced and entire, narrowed at base to petioles 

 shorter than the blades ; flowers in numerous many-flowered cymes, arranged in terminal, 

 elongated, narrow, nearly leafless panicles ; calyx-lobes ovate-lanceolate, enclosing the utricle ; 

 pericarp adherent, very thin and whitish; seed vertical or horizontal, subglobose, 0.6 mm. broad, 

 dull dark brown. 



Usually in sandy soils, Upper Sonoran and Transition Zones; widely spread over the Pacific States and 

 extending across the continent. Native of Eurasia. June-Oct. 



