Contact Us Host an Event Volunteer Join

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
7 ratings

Thursday - October 14, 2010

From: Nashville, TN
Region: Southeast
Topic: Plant Identification
Title: Identification of thorny tree with lemon-like fruit
Answered by: Nan Hampton

QUESTION:

What would be a small lemon like fruit that grows on a bush with large thorns? The fruit is about the size of a golf ball, kind of fuzzy yellow skin like a lemon and smells like a cross between an orange and a lemon. The flesh is like that of a lemon.

ANSWER:

This sounds like Poncirus trifoliata (hardy orange or trifoliate orange), an introduced species from China.  It is listed on the Center for Invasive Species and Ecosystem Health Invasive.org website and by TexasInvasives.org.  If this isn't the plant you have seen, please take photos and send them to us and we will do our best to identify it.  Visit Mr. Smarty Plants' Plant Identification page to read the instructions for submitting photos.

 

More Plant Identification Questions

What's invading my bermuda grass?
June 11, 2013 - Our grass is being totally overrun by this weed.(I don't know what the name is identify it by the description. It is in Bermuda grass and the only way to describe the weed is to say it looks like big...
view the full question and answer

Plant identification
October 20, 2010 - Need to identify multi branched plant, feathery appearance, approx 6' tall stalks, grows in clusters. Tiny whitish/pink flowers at top of stems. Very similar in appearance to milfoil, only these grow...
view the full question and answer

Identification of a low raspberry-like plant in New Brunswick
July 09, 2011 - I am searching for a plant I found last year while walking in the woods in early summer. It was a low plant, much like a raspberry, but not on thorny growth and close to the ground. Seems to be on new...
view the full question and answer

Identification of plant in Illinois
August 13, 2007 - I've found a plant that I cannot identify. The plant is is very short, 2 inches tall maybe, and has very fragile, thin leaves and stem. The leaves about 1" long, are pinnate, with about 20 leaflets ...
view the full question and answer

Identity of vines in Florida
October 30, 2012 - Hello, I have 2 different types of vines growing in my shrubs. They are very pretty and I like them I just want to know if they are poisonous or if they will take over my shrubs. I have not been able ...
view the full question and answer

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