En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
2 ratings

Wednesday - November 21, 2012

From: McCamey, TX
Region: Southwest
Topic: General Botany, Diseases and Disorders, Trees
Title: Fasciation on Texas Mountain Laurel
Answered by: Nan Hampton

QUESTION:

Do Texas Mountain Laurel normally have a staghorn looking growth hanging on them after blooming in addition to the seed pod clusters or could this be a mutation?

ANSWER:

The staghorn growth you are seeing on the Sophora secundiflora (Texas mountain laurel) is called a fasciation.  Fasciation is a plant developmental anomaly in which it appears that stems, flowers, leaves and/or fruits have been fused. It is uncertain whether it is genetically determined or caused by disease or some other sort of trauma to the plant. It does appear that there may be an inheritable tendency toward fasciation that may be triggered by environmental conditions such as temperature, crowding, insect attack, disease or wounding of the plant. Texas Mountain Laurel seems especially susceptible to fasciation.  Here are photos photos of fasciated plants and more information from Purdue University Extension and Colorado State Extension and some photos of fasciated, or cristated, cactus (cristation is a synonym for fasciation).

Below are photos of fasciated stems of Texas Mountain Laurel and a fasciated blossom of Lupinus texensis (Texas bluebonnet).

 

From the Image Gallery


Texas mountain laurel
Sophora secundiflora

Texas mountain laurel
Sophora secundiflora

Texas mountain laurel
Sophora secundiflora

Texas mountain laurel
Sophora secundiflora

Texas bluebonnet
Lupinus texensis

More Trees Questions

Due to drought is pruning live oaks beneficial from Houston
December 07, 2011 - Would it be beneficial (presuming a continued spring drought) to prune live oak trees more severely than usual this winter? I'm thinking that it might help them to have less mass to support.
view the full question and answer

Need for smaller tree with less invasive roots from Ft. Worth TX
June 07, 2014 - The sycamore in the front yard has developed roots larger than the branches. They have decided that the water and sewer lines are perfect to acquire their water from. For this reason it will be coming...
view the full question and answer

Garden instructions from Austin
June 12, 2013 - I'm a beginning gardener putting in some new landscaping in my front yard in north central Austin, TX. The yard faces almost due east, so it gets full sun until early afternoon, when the house's sha...
view the full question and answer

Walnut tree root coming through basement floor in Portland, OR
February 10, 2009 - I have a walnut tree root coming through my basement floor. I need advice as to what will it do to tree when I remove the root, like another root though a different part of my home. It is a large tree...
view the full question and answer

Problems with a Cercis (Redbud)
August 25, 2014 - Half of my redbud tree is pooped out looking. On two places on the bark are areas where a few layers of bark have pulled back. In these areas there are white growths.
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center