Fraxinus pennsylvanica Lednaw

Abstract

This new varietal sport of Fraxinus pennsylvanica summit green ash has been produced asexually from a sport branch of `Summit` green ash (Fraxinus pennsylvanica `Summit`) found growing on a tree at Madison, Wis. with the characteristic of many lateral branches growing from a main branch or limb axis. Propagation by me asexually from this sport produced vigorous straight-growing trees with a strong central leader, an adnormally high number of lateral branches, many appearing at three inch intervals on the main stem. These laterals grew in a strongly ascending manner producing semi-lustrous dark green foilage, turning yellow in the fall, and tree crown with a ratio of 15 to 20% of the height in width, much narrower than asexual progeny of Summit ash of the same age and size.

I claim: 
     
       1. A new and distinctive variety of Fraxinus pennsylvanica named `Lednaw`, as described and illustrated herein, that differs from all other varieties by the unique combination of: (1) very narrow colunmar growth habit; (2) dense symmetrical crown due to closely spaced, strongly ascending branches that overlap each other; and (3) leaves dark green and semi-lustrous above, paler below, turning yellow in autumn.