Rent Shop 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

Identification of landscape plants at malls in Waco and Temple
August 20, 2009 - Dear Mr. Smarty, I am trying to identify a plant used in landscaping for several shopping centers within the Waco-Temple areas. It looks to be large mounding grass, but flowers June-July with shaft...
view the full question and answer

Identity of plant that looks like green onions
April 06, 2013 - I have what looks like green onions growing in my lawn. They have small white flowers. Are they edible?
view the full question and answer

Plant identification
November 04, 2010 - I am trying to figure out what this plant is..It has light feathery leaves like dill. It is an annual in the midwest. Height 5-6 feet tall. Stalk is about 3 inches wide with branches that are 2 feet l...
view the full question and answer

What is sage-like plant in New River AZ?
July 17, 2009 - I have a sage like looking plant growing wild in my yard. I live in the Sonora Desert. Its leaves are purple and once a year in spring it will bloom small blooms that are lavender. It grows 2 to 3 an...
view the full question and answer

Plant identification
July 29, 2008 - Greetings, Sir/Madam! What is the name of that weed that grows ubiquitously in St. Augustine, Fl (literally overnight when it rains) and has two skinny "arms", with little greenish beads on the arm...
view the full question and answer

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