En Español

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Thursday - September 06, 2012

From: Beaumont, TX
Region: Southwest
Topic: Plant Identification
Title: Visual difference between Strophostyles umbellata and S. helvola
Answered by: Nan Hampton

QUESTION:

I know that Strophostyles umbellata is perennial and S. helvola is an annual, but can you tell me how to visibly distinquish between S. umbellata and S. helvola.

ANSWER:

You are right that Strophostyles umbellata (Pink fuzzybean) is a perennial and Strophostyles helvola (Amberique-bean) is an annual.   Here are the differences that separate the two according to Correll and Johnston's Manual of the Vascular Plants of Texas:

"Bracts at base of individual flowers blunt, half as long as the calyx tube or less; leaflets without conspicuous lobes at base, 3 to 8 times as long as wide.....S. umbellata.

Bracts at base of individual flowers acute, as long as the calyx tube or longer; leaflets lobed at base or (if not lobed) the leaflets 1 to 3 times as long as wide......S. helvola.

Here are more photos and information, including the botanical descriptions, from Missouri Plants for S. umbellata and S. helvola .  Note that the description on the Missouri Plants page for S. umbellata says that there are three species of Strophostyles [Strophostyles leiosperma (Slickseed fuzzybean), as well as S. umbellata and S. helvola] in Missouri and that the best way to distinguish between the three is by noting the differences in the bracts.

 

From the Image Gallery


Pink fuzzybean
Strophostyles umbellata

Pink fuzzybean
Strophostyles umbellata

Amberique-bean
Strophostyles helvola

More Plant Identification Questions

Native sedges for Texas
March 07, 2007 - What can you tell me about Texas Blue Sedge? What its true name and culture requirements?
view the full question and answer

ID for Dill-like weed
February 12, 2009 - I live in Richmond,VA.and have a man made dam for a pond fed by several springs. There's a scruffy weed that looks like dill weed when it emerges in the spring but is so tough that I can't pull it u...
view the full question and answer

Identification of rose campion
August 04, 2007 - My friend shared a plant with me and I cannot identify it. She said that it was Rose Campriow? or something like this. It has very small pink/purplish blooms with grey green foliage. It is a perenn...
view the full question and answer

Plant with red berries that grows near the Warner River
August 04, 2008 - We live next to a river, the Warner River, and every year these plants with red berries appear next to the river. we have search for name to no avail: the leaf is unique with one large spade shaped ...
view the full question and answer

Plant identification
June 14, 2008 - I have a plant or weed that is a five leaf leave and it is greenish-red and shinny. I have been searching the internet and can't seem to find what it is. It is spread throughout my back yard an...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.

Bibliography

Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston

Search More Titles in Bibliography

E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center