Explore Plants

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
    
 

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

Tuesday - May 21, 2013

From: Spring Branch, TX
Region: Southwest
Topic: Plant Identification, Grasses or Grass-like
Title: Identification of red-topped grass blooming in Comal County
Answered by: Nan Hampton

QUESTION:

I live in Comal County and right now (mid May) there is a beautiful, red topped grass growing along the side of country roads. It is maybe 1 foot tall, and waves in the breeze. Do you know what kind of grass it might be?

ANSWER:

The highest probability is Aristida purpurea (Purple threeawn).  It is truly beautiful and native. 

Another possibility is Bothriochloa ischaemum (King Ranch bluestem), an invasive species native Africa, Asia and Europe that is growing along highways near Austin right now.

 

From the Image Gallery


Purple threeawn
Aristida purpurea

Purple threeawn
Aristida purpurea

Purple threeawn
Aristida purpurea

Purple threeawn
Aristida purpurea

More Grasses or Grass-like Questions

Frequency of mowing on native grasses
November 17, 2006 - I live on 5 acres in TX Hill Country. I love the native grasses when they are high and blowing, etc. My husband insists on mowing, claiming that by mowing, the grasses grow more rapidly over the dry...
view the full question and answer

The effect of plant growth regulators (PGRs) on tall grass species
January 25, 2009 - I have a question about some established native grass areas that we have on our golf course in eastern Missouri. For the past eight or nine years we have been working hard to transition these areas f...
view the full question and answer

Need suggestions for plants for a bird/small wildlife refuge in Wichita Co, TX.
August 26, 2011 - With our continuing drought in North Texas, I'm planning to transform my small backyard into a bird/small wildlife "refuge". What types of native plants and grasses can I plant in dry, hot Wichita ...
view the full question and answer

Winter groundcover for shaded backyard in Austin
January 10, 2013 - I live in south Austin and have a shaded backyard. During the summer, the lawn died and the ground is now bare. I'd like to plant some kind of winter grass or ground cover that will hold the soil i...
view the full question and answer

Plants for a dry hillside in central Texas
March 07, 2010 - We need to plant some plants or grasses on a 3/4 acre sloaping hillside which does not get watered. Any recommendations for native grasses or plants which don't need care and will keep the lot from e...
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.