Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Friday - October 09, 2015

From: Sarasota, FL
Region: Southeast
Topic: Invasive Plants, Non-Natives, Trees
Title: Are Royal Poinciana and Royal Empress trees the same?
Answered by: Nan Hampton

QUESTION:

Hi, can you tell me if the Royal empress tree and the Royal Poinciana are the same tree?

ANSWER:

Both are introduced species that are not native to North America, but they are not the same tree.

Paulownia tomentosa (Royal empress or princesstree), Family Scrophulariaceae (Figwort Family), is native to China and is considered invasive in some parts of North America.  Here is more information on its invasive status.

Delonix regia  (Royal poinciana), Family Fabaceae (Bean Family), is native to Madagascar. It is not considered invasive, but caution is advised about its potential for invasiveness in south Florida. 

 

 

More Trees Questions

Should I top my scraggly magnolia tree? No
January 27, 2010 - Mr.Smarty Plants, I live in Crockett,Tx. My husband and I just bought this house. In the front yard I have a very tall,scraggly magnolia tree due to trees growing up around it. We have cut some of tho...
view the full question and answer

Distance from wall to plant Eastern red cedar
September 26, 2008 - I want to plant a row of Eastern red cedar on the high side of a 2 to 2 1/2 ft large Pavestone block retaining wall, preferably as close to the wall as possible. We have put maybe 4-5" of gravel beh...
view the full question and answer

Live oak bark splitting in Katy TX
October 03, 2011 - We have a 7 yr old live oak that looks like its bark is splitting open in branches and top leaves look wilted. If that sounds like oak wilt, do we need to have the tree removed? We live in a subdivisi...
view the full question and answer

Wind damage to pecan tree in Royse City, TX
June 14, 2009 - The wind broke my pecan tree trunk in two. It is approximately 2 in caliper and about 15 feet tall. Is there a tree trunk repair?
view the full question and answer

Floristic Quality Assessment program in Texas?
January 19, 2009 - Do you have knowledge of a Floristic Quality Assessment program for Texas such as the ones used in Indiana and Illinois?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.