ocrea
Noun. (botany) A sheath around a plant stem forming from the stipule of a leaf and extending above the point of insertion of the leaf.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.