Amaranthus AMARANTHACEAE Acnida 



AMARANTHACEAE (Amaranth Family) 



Amaranthus L. Pigweed. 

 A. retroflexus L. 



Frequent in cultivated and waste ground. Adv. from tropical 

 America. 



A. hybridus L. (Including A. cruentus L. See D. C. Wheeler, 

 Bartonia 21, 4. 1942.) 



Frequent in old fields, dumps and waste places. Nat. from 

 tropical America. Frt. Sept., Oct. 



A. caudatus L. 



A rare escape from cultivation: Wilmington, dump at Fourth 

 Street bridge Commons & Tatnall, 12 July 1896, according to E. 

 Tatnall (MS Catalog). 



A. albus L. (A. graecizans of Gray's Man., ed. 7. See Fernald: 

 Rhodora 47, 139-140. 1945). Tumbleweed. 



Waste ground and roadsides. New Castle County; seldom 

 collected: Centreville (NC), Commons, Aug. 1875 (A); roadside, 

 Wilson Station, C. 0. Houghton, 15 Sept. 1927 (UD). 



A. graecizans L. {A. hlitoides Wats.). 



In streets of Wilmington; not collected since 1897. Introd. 

 from western U. S. 



A. spinosus L. Thorny Amaranth. 



Infrequent, in waste places. Nat. from tropical America. 



A. pumilus Raf. 



Rare, on sea beaches: southeastern Sussex County, Commons, 

 10 Sept. 1875. Frt. Aug., Sept. 



Acnida L. Water Hemp. 

 A. cannabina L. 



Common on sea beaches, and in fresh to salt tidal mud. Frt. 

 Aug., Sept. 



A. tamariscina (Nutt.) Wood. 



One collection: in a "moist field, unusual habitat," at Blue Ball 

 Inn, near Wilmington, Commons, 21 Sept. 1896 (A). 



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