Native Plants
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.
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.
rate this answer
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
More Plant Identification Questions
Identification of maypop north of Houston
March 08, 2008 - I have some land in the country an hour north of Houston, Texas. There is a wild plant which grows in clusters from 10' to 20' wide. These plants grow about 6" or 12" apart.They are approx. one fo...
view the full question and answer
Plants indigenous to Sedona, AZ
July 07, 2010 - I live in Sedona AZ and I want to plant indigenous plants in my garden. Is there a list of AZ native plants shrubs and trees that are indigenous to Sedona?
If there is no list that is specific f...
view the full question and answer
Identification of giant lilies
October 12, 2007 - I have giant lilies that I can't identify. The bulbs are about 4" in diameter, the leaves are 4 ft long. The flowers of the pink emerge only in the early summer, the flowers of the red emerge in s...
view the full question and answer
Plant identification of tree on Kent State University in Ohio
August 09, 2011 - Hello. I am fond of a very large (wide) tree on a university campus in Ohio. I have tried many plant ID search engines to try to figure out what it is. It is at least 12 feet tall and at least that ...
view the full question and answer
Identity of tree with fragrant yellow flowers and thorns
June 06, 2013 - I'm not sure if this is a native plant. It's a tree, around 15" tall. The leaves are in bunches with 3-4 very sharp small spines at each bunch. Flowers are small, yellow, hang down from the leaf...
view the full question and answer
| Support the Wildflower Center by Donating Online or Becoming a Member today. |