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?

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
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

Friday - June 22, 2007

From: Paonia, CO
Region: Rocky Mountain
Topic: Invasive Plants
Title: Percentage of plants native to U.S.
Answered by: Damon Waitt

QUESTION:

About 50% of the plant species in Hawaii are naturalized, invasive, aliens (from other places). What are equivalent statistics for the lower 48 states (continental US) as a whole?

ANSWER:

Of the approximately 29,244 non-Hawaiian taxa listed in the USDA Plants database, 26,613 or 91% are listed as Native to the U.S. At best, Mr. Smarty Plants would say this is a rough estimate.

 

 

 

 

More Invasive Plants Questions

Identification of lantanas safe for use in Florida
February 10, 2008 - Why do you list lantana camara as a native to the U.S. and as a native plant in Florida? It is a category one invasive exotic on the Florida Exotic Pest Plant Council's list of invasive exotics. La...
view the full question and answer

My plants are choking.
September 01, 2008 - I have a trailing weed that is choking the other plants in my garden. It grows super fast and it has small white flowers. The flower looks a bit like a mini morning glory. I have tried pulling it as m...
view the full question and answer

Getting rid of invasive grasses in backyard
July 17, 2010 - Mr. Smarty Plants, How do I rid my yard of invasive grasses? I am finding Bermuda, stickers, crabgrass and maybe even Johnson grass throughout my backyard. The invasion is substantial in one 200+...
view the full question and answer

Hybrid Campsis radicans 'Madame Rosy' from Medina OH
July 07, 2012 - I have a Madame Rosy Campsis that is not blooming. We purchased and planted it last year, mid-summer and it did well for the remainder of the season but this year...nothing but green leaves........wh...
view the full question and answer

Is Ruellia aggressive?
July 06, 2014 - Is Ruellia aggressive?
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center