Plum puzzle

Native Tree Society Tree Measuring Guidelines and related materials.

Moderators: edfrank, dbhguru

#1)  Plum puzzle

Postby Will Blozan » Mon Nov 17, 2014 10:27 am


Ok, here is another one. American plum (Prunus americana) is a diminutive tree. It tends to have a single stem but often forks below 4.5 feet as small trees do. So, do we take the girth at the smallest, lowest point or stick to 4.5 feet?

To me, 4.5 feet short changes the little trees as it bypasses significant trunk mass. This would be especially important on low-branching species such as evergreen rhododendrons, mountain laurel, witch-hazel etc.

Adding to the tree puzzle below is the right stem is dead. Do we still measure at lowest point?

Pruname base.jpg

Pith trace
Pith trace pruname.jpg

User avatar
Will Blozan
Posts: 1153
Joined: Fri Mar 12, 2010 8:13 pm
Location: North Carolina
Has Liked: 1558 times
Has Been Liked: 442 times
Print view this post

#2)  Re: Plum puzzle

Postby bbeduhn » Mon Nov 17, 2014 11:17 am

The low branch, whether dead or alive, still adds to the girth differently than it would to a standard single trunk tree.  Therefore, the true girth should still be the smallest point on the trunk below 4.5', regardless of the branch being dead or 4 cents (inflation).

For this message the author bbeduhn has received Likes :
Will Blozan
User avatar
Posts: 970
Joined: Thu Feb 10, 2011 5:23 pm
Location: Asheville, NC
Has Liked: 1125 times
Has Been Liked: 476 times
Print view this post

#3)  Re: Plum puzzle

Postby edfrank » Mon Nov 17, 2014 11:39 am


am unsure about your pith trace but am willing to accpet it as a single trunk tree.  I would include the girth of the dead branch but measure teh girth at the narrowest point below the branch and note the heihgt, even if it were at ground level.

"I love science and it pains me to think that so many are terrified of the subject or feel that choosing science means you cannot also choose compassion, or the arts, or be awe by nature. Science is not meant to cure us of mystery, but to reinvent and revigorate it." by Robert M. Sapolsky

For this message the author edfrank has received Likes :
Will Blozan
User avatar
Site Admin
Posts: 4194
{ IMAGES }: 0
Joined: Sun Mar 07, 2010 6:46 pm
Location: Reynoldsville, Pennsylvania, USA
Has Liked: 915 times
Has Been Liked: 706 times
Blog: View Blog (3)
Print view this post

Return to Tree Measuring Guidelines

Who is online

Users browsing this forum: No registered users and 1 guest