An elongated circumferential leaf base formation present on some species of palm is called a crownshaft. The leaf bases of some pinnate leaved palms (most notable being Roystonea regia or the Royal Palm but also including the families Areca, Wodyetia and Pinanga) form a sheath at the top of the trunk surrounding the bud where all the subsequent le...
Found on
http://en.wikipedia.org/wiki/Crownshaft
A tight bundle of very erect leaf bases that form a green pillar at the top of the woody trunk.
Found on
http://www.2shoptrees.com/treeglossary.htm
A tight bundle of very erect leaf bases that form a green pillar at the top of the woody trunk.
Found on
http://www.naturehills.com/plant_glossary.xhtml
No exact match found.
