En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Identity of flowering yellow trees in Austin

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 Trees Questions

Affect of poisonous plant roots in soils for vegetables from Rusk TX
May 11, 2013 - I have a huge old flowerbed in front of my house that I want to plant veggies in, but I'm afraid to. It has a catalpa tree there, which I sell the worms from, but the entire tree (bark, leaves, flowe...
view the full question and answer

Anacacho orchid tree (Bauhinia lunarioides) and the freeze in Austin
February 03, 2010 - I just wanted to say that your answer in today's Austin American-Statesman about recent freeze damage to Anacacho orchid trees was right on for ours as well. We're in north central Austin and all t...
view the full question and answer

Identification of tree blooming in Austin with yellow balls
March 21, 2012 - What is the tree/large shrub that is blooming now (mid-March) in the Austin area? It has small mesquite-type leaves, round yellow balls with fuzz on them and is fragrant. Thanks!
view the full question and answer

Tool for removing live oak root shoots in Gonzales TX
August 09, 2010 - I've read your answer to live oak root shoots. You said to get rid of them by going 2 to 4 inches below the surface and cutting them. What tool is best for this shoot removal? I'm getting very tir...
view the full question and answer

Supplier for non-native Norfolk Pine to East Texas
March 17, 2013 - I would like to buy a Norfolk Pine Tree for my uncle who lives 90 miles east of Dallas, Texas. He saw my Norfolk Pine tree in CA which is 30 to 40 ft. tall. Where can I find a company that will ship...
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