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
Saturday - January 10, 2015
From: Missoula, MT
Region: Rocky Mountain
Topic: General Botany, Herbs/Forbs
Title: Information about Erigeron annuus and Erigeron philadelphicus
Answered by: Nan Hampton
QUESTION:
Hi! I am looking for information about the specific leaf area of Erigeron annuus and Erigeron philadelphicus. Do you know of anyone who is working with any these species, who might be able to provide this information? I have done an exhaustive literature search and can't find the information published anywhere. Thanks so much. LaurenANSWER:
If you are looking for leaf dimensions there are leaf descriptions from Flora of North America of Erigeron annuus and Erigeron philadelphicus that give leaf dimensions. You would then have to calculate the area. Here are several methods for doing that:
Surface Area of a Leaf Teacher Sheet from AAAS Science NetLinks.
Are you looking for information on calculations of the Leaf Area Index of Erigeron annuus (Daisy fleabane) and Erigeron philadelphicus (Philadelphia fleabane)? If so, I did find the following citations/abstracts of articles that might be useful to you:
Abstract of: Lee, Ho-Joon. 1992. Germanition (sic), shade toarance (sic) and community characteristics on Erigeron annuus L. in Cheju. Korean Journal of Ecology. 01/1992: 15(2).
If neither of these is what you're looking for, please send Mr. Smarty Plants another question with clarification.
More Herbs/Forbs Questions
Low growing, flowering evergreen plants for Pflugerville TX
March 30, 2010 - I am wondering if you can suggest some low growing, flowering evergreen plants for my garden.
view the full question and answer
Plants for area around pool in Plano, Texas
October 13, 2009 - I just built an in ground pool in Plano, Texas and now want to landscape around it on my own. I am curious what plants/shrubs you recommend. There will be plants/shrubs on three sides of the pool. ...
view the full question and answer
Petals on Black eyed Susans not developing from Austin
September 04, 2012 - I just read Barbara Medfords response to undeveloped petals on perennial black eyed susans and was disappointed not to find a better explanation. I have had the exact same thing happen to mine, and I...
view the full question and answer
Plants under Oak Trees in Austin TX
December 10, 2012 - Half of my small yard is in the shade of one big live oak and one kumquat. Nothing I plant grows in this shade. The other half of my yard gets sunlight. It is planted with Jasmine grass which grows w...
view the full question and answer
Non-native invasive henbit from Round Rock TX
April 27, 2013 - I've read in this book "Native Alternatives to Invasive Plants" that Henbit is an invasive plant in Texas. I've also read that it provides an early source of nectar to bees and butterflies when li...
view the full question and answer
| Support the Wildflower Center by Donating Online or Becoming a Member today. |