| 单词 | wigeon grass | 
| 释义 | > as lemmaswigeon grass   wigeon grass  n. (chiefly in form  widgeon grass) (originally) a type of seagrass growing along the coastlines of North America and Eurasia,  Zostera marina (family  Zosteraceae), having long, grass-like leaves; (in later use) a widespread salt-tolerant aquatic plant growing in brackish waters,  Ruppia maritima (family  Ruppiaceae), having thin, thread-like leaves; cf. wigeon weed n. Z. marina and  R. maritima are important sources of food for many species of waterfowl. ΘΚΠ the world > plants > particular plants > algae > seaweed > 			[noun]		 > grass-wrack sweet-grass1577 grass wrack1633 grass weed1658 eel-grass1790 zostera1819 sea-wrack grass1836 sea-grass1857–8 wigeon grass1857 wigeon weed1893 zos-grass1937 1857    Nat. Hist. Rev. 4 51  				During winter they [sc. widgeon] feed on the zostera, called by the peasantry widgeon-grass. 1878    J. Britten  & R. Holland Dict. Eng. Plant-names  				Widgeon-grass. Zostera marina, L. 1953    Brownsville 		(Texas)	 Herald 7 June 9/2  				We plan to plant Ruppia, commonly known as widgeon-grass. 2000    D. Winegar Longstreet Highroad Guide Chesapeake Bay 12  				Wigeon grass (Ruppia maritima) tolerates very brackish water and eelgrass (Zostera marina) can live in pure seawater. < as lemmas  | 
	
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