What does "fountain grass" mean?

tall perennial ornamental grass with long nodding flower plumes of tropical Africa and Asia

What is a synonym for "fountain grass"?

Common synonyms include: feathertop, pennisetum, pennisetum ruppelii, pennisetum setaceum.

Rare ·Advanced level

Noun

1
tall perennial ornamental grass with long nodding flower plumes of tropical Africa and Asia wordnet