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
Not Yet Rated

Wednesday - March 21, 2012

From: Austin, TX
Region: Southwest
Topic: Plant Identification, Trees
Title: Identity of flowering yellow trees in Austin
Answered by: Nan Hampton

QUESTION:

There are numerous flowering yellow trees in my Austin neighborhood. Are they mesquite or goldenball lead trees? They are quite fragrant, like a new bar of soap.

ANSWER:

The trees you are seeing are probably Acacia farnesiana (Huisache).  It is possible that Leucaena retusa (Goldenball leadtree) is blooming, but they generally don't bloom until April.  This, however, has been an unusual year because of the very mild winter—many plants are blooming earlier than they normally do.  The flowers of the two look similar, but those of the goldenball lead tree tend to be about 2 cm. in diameter; while those of huisache are closer to 1 cm. in diameter.  The blooms of both trees are fragrant.  The huisache has thorns and the goldenball lead tree does not.  Prosopis glandulosa (Honey mesquite) is also blooming now but its flowers are a paler shade of yellow and have a different shape.  The leaves of all three trees are similar.

 

From the Image Gallery


Huisache
Acacia farnesiana

Huisache
Acacia farnesiana

Huisache
Acacia farnesiana

Huisache
Acacia farnesiana

Goldenball leadtree
Leucaena retusa

Goldenball leadtree
Leucaena retusa

Goldenball leadtree
Leucaena retusa

Goldenball leadtree
Leucaena retusa

Honey mesquite
Prosopis glandulosa

Honey mesquite
Prosopis glandulosa

Honey mesquite
Prosopis glandulosa

More Plant Identification Questions

Identification of a vine with purple flowers
July 06, 2011 - I'm trying to identify a vine-like plant growing in my yard to determine if it is a weed or should be kept around. It has small purple flowers with a small yellow center, looking like a mini honeysuc...
view the full question and answer

Identity of vine growing in New Jersey
July 03, 2012 - Hello! I am hoping you may be able to help me out in identifying a vine plant that has started to grow from under my deck, through the lattice and up the outside of my deck. I bought the house 2 y...
view the full question and answer

Plant ID from Foster RI
April 05, 2012 - I have a weed flowering plant in bloom in a moist semi-shaded area. I would like to send a photo but I do not know how to upload.
view the full question and answer

Plant identification--Mock Orange
June 08, 2009 - I "grew up" with what I was told was a "Mockorange Bush." I've been looking around to be able to try to identify what variety it was. To be specific, the one that I am familiar with had little...
view the full question and answer

Identification of low growing plants with flowers that resemble a bunch of grapes in Graford, TX
February 10, 2011 - I am in northwest TX and I would like to know the name of the early blooming, very low growing plant that has a single bloom on a bare stem--it is dark crimson and the blooms looks like a bunch of gra...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center