from the GNU version of the Collaborative International Dictionary of English
- n. Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches.
from The Century Dictionary and Cyclopedia
- n. The typical genus of Pennatulidæ the sea-pens. P. phosphorea is a European species. See cut under Alcyonaria.
- n. [lowercase] A polyp of the genus Pennatula; a sea-pen.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. type genus of the family Pennatulidae: sea pens
Sorry, no etymologies found.
Subtropical matorral habitats consist of Acacia pennatula mixed with other Acacia, Ipomoea and Bursera, interspersed with Opuntia, and Stenocereus.