
1) Arizona copse 2) Clump of trees in a prairie 3) Grove of prairie trees 4) Southwestern copse 5) Tree grove 6) Woody copse
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https://www.crosswordclues.com/clue/motte

An earthwork mound topped with a tower or shell keep.
Found on
http://great-castles.com/glossary.php

artificial mound upon which a castle is built
Found on
http://phrontistery.info/m.html

• (n.) A clump of trees in a prairie.
Found on
http://thinkexist.com/dictionary/meaning/motte/

(from the article `Europe, history of`) ...The decline of the popular courts and public jurisdiction had been accompanied by the appearance of innumerable private fortresses, often little ... ...social organization and warfare was the motte-and-bailey castle, which appeared in the 10th and 11th centuries between the Rhine and Loire rive...
Found on
http://www.britannica.com/eb/a-z/m/128

artificial or improved natural mound on which castle was built
Found on
http://www.castles-of-britain.com/glossary.htm

A mound of earth on which a tower was built; artificial conical earth mound (sometimes an old barrow) for the keep
Found on
http://www.castlesontheweb.com/glossary.html

A mound of earth on which a tower was built; artificial conical earth mound (sometimes an old barrow) for the keep
Found on
http://www.encyclo.co.uk/local/20018

Fortified mound within a castle or other fortification. At the Norman conquest, it was necessary to garrison the country at speed, and mottes, often surrounded only by ditches or wooden walls, were...
Found on
http://www.encyclo.co.uk/local/20688

The first castles built by the Normans often consisted of a steep-sided earthen mound with a tower built on it. The mound was known as a motte.
Found on
http://www.encyclo.co.uk/local/20766

a steep sided mound surmounted by a keep or other defendable structure which formed the central feature of early castles. See fortification
Found on
http://www.encyclo.co.uk/local/20935

a mound, often man-made, on which a castle was built
Found on
http://www.encyclo.co.uk/local/22129

Copse or small stand of trees on a prairie, such as the oak mottes found on the coastal prairie of eastern Texas.
Found on
http://www.encyclo.co.uk/local/22218

Artificial mound.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Motte noun [ Confer French
motte a clod, clump, or hillock.] A clump of trees in a prairie. [ Local, U.S.]
Found on
http://www.encyclo.co.uk/webster/M/107

a mound, often man-made, on which a castle was built
Found on
https://www.encyclo.co.uk/local/20402

a grove or clump of trees in prairie land or open country.
Found on
https://www.infoplease.com/dictionary/motte
No exact match found.