REMOVE

1. groves (plant communities)
2. artists (visual artists)
3. silhouettes
4. bushes

WHAT

1. Visual Works (hierarchy n … (1)
2. branches (plant component … (1)
3. color film (film) (1)

More 

WHERE

1. Westminster, Maryland (1)

WHEN

1. 1964 (1)
2. ca. 1964 (1)