GOOSEFOOT FAMILY 73 
I. SPINACIA L. 
Herbs. Flowers dicecious, in close axillary clusters. Stami- 
nate flowers 3-5-sepaled, with 4 or 5 projecting stamens; pis- 
tillate flowers with a tubular 2-toothed or 4-toothed calyx. 
1. S. oleracea Mill. Sprnacu. A soft annual or biennial herb. 
Leaves triangular, ovate, or halberd-shaped, petioled. Cultivated 
from Asia as a pot herb. 
Il. CHENOPODIUM L. 
Annual or perennial herbs. Stems erect or spreading. 
Leaves alternate, usually white-mealy. Flowers small, green- 
ish, in panicled spikes. Calyx 3-5-parted, the lobes often 
slightly fleshy and keeled. Stamens 5; filaments thread- 
shaped. Styles 2-3, distinct or united at the base. Seed 
lens-shaped.* 
1. C. Botrys L. JerRusSALEM Oak. A low, spreading plant, covered 
with sticky down. Leaves with slender petioles, oblong, sinuately 
Fie. 15. Pigweed (Chenopodium album) 
A, B, flower; C, fruit. (All about seven times natural size) 
lobed or the lobes pinnate. Flowers in loose, diverging, leafless ra- 
cemes, The whole plant is sweet-scented. Introduced from Europe 
and naturalized in gardens and along roadsides. 
2. C. glaucum L. Oax-Leavep GoosEroor. Annual, succulent, 
somewhat mealy. Stem spreading, much branched, 5-12 in. high. 
Leaves varying from oblong to lanceolate, obtuse, some or all of 
them more or less sinuate-toothed, 1-2 in. long. Flower clusters 
mostly small axillary spikes. A common weed. Naturalized from 
Europe. 
3. C. album L. Lamp’s Quarters. ComMoN PiIGWEED. Annual, 
somewhat mealy. Stem erect, usually branching, 1-4 ft, high. Leaves 
a 
