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

Best time of year to trim oak trees from Beloit WI
July 23, 2010 - What is the best time of year to trim oak trees?
view the full question and answer

Problem with Prosopis glandulosa (Honey mesquite)
February 27, 2014 - One of our mature Honey Mesquite trees is losing thumb sized branches high up in the canopy because something is stripping the bark. The branches are completely white for 8-12 inches. Of course the ...
view the full question and answer

Encouraging branch growth of live oak trees in Austin
February 10, 2009 - I recently had an elm tree cut down that was crowding out 2 live oak trees in my front yard. The oaks have no branches on the sides that were next to the elm. The elm stump is still there. I need to ...
view the full question and answer

Is December a good time to prune oaks in Central Texas?
December 29, 2010 - Given that we haven't had much cold weather here in central Texas (Wimberley) this season, is it a good time to trim live and Spanish oak trees (damaged limbs and low hanging branches and suckers)? ...
view the full question and answer

Do Deer Eat Orchid Trees?
March 08, 2013 - I have planted three anacacho orchid trees, however we have a lot of deer around us. Is this a tree they will want to eat? Do you have any ideas to keep deer away?
view the full question and answer

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