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 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 General Botany Questions
Source for records of Pleistocene flora of Central Texas
December 16, 2013 - Part of your answer to a question from October 12, 2010 is "..moreover, the evidence goes even further back than the 1800s. Studies of Pleistocene deposits from Central Texas showed ancestral cedar p...
view the full question and answer
White and red Turk's cap and possible crossing
September 18, 2013 - I have had some white Turk's cap for several years. This year, some red Turk's cap has appeared among it. I have the red in another location. Will the red become dominant if I leave it among the whi...
view the full question and answer
Does music affect growth of necklace pod plants?
May 15, 2009 - Does music affect the growth of the necklace pod plants?
this is for a science project! Please help!
view the full question and answer
Which one is huajillo and which one is guajillo?
November 19, 2013 - Recently I attended a field trip to the Leonard Garden at the Kleberg Institute in Kingsville. I took a picture of a tree that was referred to as Tenaza or huajillo. Later I took another photo of a ...
view the full question and answer
Forestiera pubescens blooming in July
August 07, 2012 - I have a lot of what appears to be Forestiera pubescens. They are covered with the dark blue/black berries and flowers. Apparently they are blooming again in the middle of July. I live about 35 mile...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |