Header Graphic
spacer
menu top
   
menu bottom

branching
 In the image above, each of the 3
lower side stems have at least
two buds, so each counts as
a branch.  The top is a terminal
V with each stem again having two buds. So, each of these also
counts as a branch  Thus, this
example exhibits 5 way
branching. 

top
 

BRANCH, BRANCHING:

A stem that originates from the primary scape and bears two or more buds. Terminal branching occurs at the top of a scape and may be arranged to form a V (two branches) or a W (three branches - See Figure 3 below). Lateral (side) branches or “laterals” may occur along the scape where there are bracts. Neither a proliferation nor a stem with a single bud are included in the branch count. Branches may divide into sub-branches.

A branch count includes:
1. A terminal V is counted as 2 branches and a terminal W is counted as 3 branches. A scape that does not divide into a V or a W at its terminus is counted as 1 branch.
2. The number of lateral branches.
3. Sub-branches are not included in the count of branches.

Figure 1.
Keith Miner Branching Photo - Figure 1
Photo by Keith Miner, used with permission.
 

Looking at the photo-
graph provided in Figure 1, and noting the line drawing below it (Figure 2), you’ll find that each lateral stem bearing two or more buds is counted as a separate branch.

In Figures 1 and 2 at least two branches split into segments (sub-branches) along their length, with each segment containing several buds, however only stems which originate at the junction of the scape are counted as branches.


In Figure 1 (photograph above) and Figure 2 (diagram below), you will see a single bloom scar appearing on the scape itself. Since the scar indicates the presence of a single bloom, and by definition a branch must exhibit a minimum of two buds, a single bloom scar, even though it appears on a scape, does not count as a branch.

Count the branches which appear as stems having a junction with the bloom scape. Using the AHS definition of branching, and using the method for counting as described, the scape shown in Figures 1 and 2 exhibits six-way branching.

Branching Illustration

Terminal branching examples
Joann Stewart photo, used with permission.

A scape terminal (the top) may be a single tip with several buds (one branch) ( Figure 3a); it may exhibit V branching (two branches) (Figure 3b); or it may exhibit a W (three branches) (see Figure 3c). Note that the scape shown in Figure 1 (above) exhibits a single terminal, without showing either V or W branching. This example should be counted as having a one-branch terminal.

© Copyright 2000-2013 by the American Hemerocallis Society, Inc.
 
Content Bottom
 
Page Bottom