Extending downwards; said of leaf or stipule edges when they continue down the stem as wings or raised lines, or of pinnae when the pinna base is extended down the rachis.
Having leaves whose bases extend down the stem below the place of connection (as with thistle).
Said of leaves that are prolonged down the stem beyond their point of insertion upon it.
(Of gills) Attached and running down the stem.
Extended downwards, such as leaves that grow down along the stem.