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?


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

Monday - October 15, 2007

From: Fredericksburg, TX
Region: Southwest
Topic: Plant Identification
Title: Identification of plant, probably Datura.
Answered by: Nan Hampton


We currently have in bloom a very leggy, about 2 foot high volunteer plant in Fredericksburg, TX that has a segmented stem, single large trumpet shaped flowers that stick straight up about 4 inches in a pale green pod and bloom into milky white flowers usually in the early evening, and that has a burr-covered seed pod with many individual small brown seeds inside. My friend called it a moon flower but no moon flower on the web even remotely looks like it. Any idea what plant this could be?


This sounds like Datura wrightii (sacred thorn-apple), or at least one of the species of Datura. Other possibilites are Datura inoxia (Indian apple) and Datura stramonium (jimson weed), but your description sound most like D. wrightii. It is a Texas native and has been found in Gillespie County. The other two are introduced species but have also been found in, or very near, Gillespie County. Please note that all species of Datura are toxic, if eaten, to humans and other animals.

If none of these is your plant, please send us photos and we will be happy to try to identify it. For instructions on how to submit photographs, please visit the Ask Mr. Smarty Plants page and read about "Plant Identifcation" in the lower right corner.

Datura wrightii

Datura wrightii

Datura wrightii




More Plant Identification Questions

Identity of groundcover in Parker County, TX
June 02, 2013 - I'm trying to identify a native "groundcover" that looks much like frogfruit, as far as the leaves and growth pattern, but has small yellow flowers that look like little lanterns as buds. I know it...
view the full question and answer

Identification of growth on possible oak tree
March 24, 2008 - We have photographed a very unusual bloom or growth on a tree we suspect may be an oak, and would like to submit photos of the bloom, bark, and (leafless) tree to someone for identification. My wild ...
view the full question and answer

Identity of a plant in Ohio
May 11, 2009 - Trying to identify a tree/shrub in Ohio. It grows from 6-8', and blooms through the summer. It has small green glossy leaves, and bell/trumpet shaped flowers in pink, white, or yellow with stripes. T...
view the full question and answer

Identification of vining shrub near Fort Worth
August 07, 2015 - Please let me know what this plant might be. Saw it one county west of Ft. Worth, in a wooded area, and I've never seen this in this region before. The form is a vining shrub. Leaves are heart-sh...
view the full question and answer

Plant Identification from Round Rock TX
October 26, 2010 - I am looking for the name of a ground cover I saw that looked like large bur oak leaf in a silvery green color. It was in the shade. I tried a search with no luck. Thanks!
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center