IOWA ACADEMY OF SCIENCE 
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ATRIPLEX (Tourn) L. 
353. 
354. 
Atriplex patula L. Spreading Orache. A common weed in waste 
places. 
Atriplex hastata (L.) Gray. Halberd-leaved Orache. In similar 
places, 
SALSOLA L. 
■ 355. Salsola kali L. Ya r. tenuifolia G. F. W. Mey. Russian Thistle. 
Common in sandy soils. 
AMARANTHACEAE. 
AMARANTHUS (Tourn) L. 
356. Amaranthus retroflexus L. Green Amaranth. Abundant every- 
where. 
357. Amaranthus hyhridus L. Amaranth. Common in waste places. 
358. Amaranthus paniculatus L, Purple Amaranth. Not rare. 
359. Amaranthus blitoides Wats. Prostrate Amaranth. Very common 
everywhere. 
ACNIDA L. 
360. Acnida tamariscina (Nutt) Wood. Water Hemp. Common in 
light soils. 
361. Acnida tuberoulata Moq. Var. suhnuda Wats. Glomerate Water 
Hemp. Plenty in low sandy fields. 
FROELICHIA Moench. 
362. Froelichia floridana (Nutt) Moq. Shoestrings or Florida Froe- 
lichia. Rare within our borders though common in adjoin- 
ing counties. 
NYCTAGINACEAE. 
OXYBAPHUS L’Her. 
363. Oxybaphus nyctagineus (Michx.) Sweet. Heart-leaved Umbrella- 
wort. Yery common in waste places. 
