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
1 rating

Monday - August 17, 2009

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Unusual green fruit
Answered by: Anne Bossart

QUESTION:

Unknown "fruit" in my backyard I have large (softball size) nobbly green orbs finding their way into my backyard. They sort of look like a tennis ball left out in the rain to rot, but they are organic. Someone mentioned they could be crab apples, but I have not been able to match them with any web images. Are they crab apples or some other "fruit"?

ANSWER:

Although it is impossible to do a positive ID without seeing the fruit or a picture of it, the first thing that comes to mind is Osage orange, also known as Horse apple.  If the fruit looks like a tennis ball and your kids think it looks like a "brain fruit" it could be Maclura pomifera.  It was a plant that was widely used in the Northeast US and Canada as a hedgerow plant by farmers to keep livestock contained (because of its thorny branches) and does occur in Texas.

Check out the link to our database and see if you see a resemblance.

 Maclura pomifera (osage orange)


Maclura pomifera

 

 

More Trees Questions

Non-native Royal Empress tree with only green leaves from Chambersburg PA
July 12, 2013 - I have 3 Royal Empress trees in my yard that are between 2-4 yrs old and have never been any color other then big Green leaves. Do you know when they will turn Purple?
view the full question and answer

When to transplant volunteer Cedar Elms in Cedar Park, TX?
October 11, 2012 - We have a number of volunteer cedar elms we would like to transplant. When is the best time to do this? Should they be potted first and later transplanted or transplanted immediately? Thanks.
view the full question and answer

Viability of Texas Mountain Laurel in Louisiana
March 19, 2008 - I just returned from a visit to Austin and I saw the Texas Mountain Laurel everywhere. I live in the Baton Rouge, LA area and would like to know if performing some soil amendments would allow me to gr...
view the full question and answer

Decline of indoor lemon cypress
June 25, 2008 - I received a lemon cypress as a gift. I have kept it indoors in bright light and tried to keep it moist. When I received the plant the foliage was soft and now it has become brittle and dry even tho...
view the full question and answer

Trees resistant to Armillaria mellea, root fungus
December 16, 2008 - We had to bring down a 200 year old oak which root system was compromised by Armillaria mellea. We were told the fungus is still present in the soil & it's advisable to plant a resistant species. W...
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