
1) Bilberry 2) Blaeberry 3) Blueberry 4) Blueberry bush 5) Viccinium myrtillus 6) Whinberry
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https://www.crosswordclues.com/clue/whortleberry

1) Bilberry 2) Blaeberry 3) Hurtleberry 4) Whinberry
Found on
https://www.crosswordclues.com/clue/whortleberry

• (n.) In England, the fruit of Vaccinium Myrtillus; also, the plant itself. See Bilberry, 1. • (n.) The fruit of several shrubby plants of the genus Gaylussacia; also, any one of these plants. See Huckleberry.
Found on
http://thinkexist.com/dictionary/meaning/whortleberry/

<botany> In England, the fruit of Vaccinium Myrtillus; also, the plant itself. See Bilberry. ... The fruit of several shrubby plants of the genus Gaylussacia; also, any one of these plants. See Huckleberry. ... Origin: AS. Wyrtil a small shrub (dim. Of wyrt wort) + E. Berry. See Wort, and cf. Huckleberry, Hurtleberry. ... Source: Websters Dic...
Found on
http://www.encyclo.co.uk/local/20973

Whor'tle·ber`ry noun [ Anglo-Saxon wyrtil a small shrub (dim. of wyrt wort) + English berry . See Wort , and confer Huckleberry , Hurtleberry .] (Botany) (a) In England, the fruit of Vaccinium Myrtillus ; also, the plant itself. See
Found on
http://www.encyclo.co.uk/webster/W/36

Whortleberry (Vaccinium) is the name of several species of shrubs of the family Vacciniacea, such as the cranberry, cowberry and bilberry but often restricted to just the bilberry.
Found on
http://www.probertencyclopaedia.com/browse/BW.HTM

A form of bilberry
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.