Host an Event Volunteer Join Tickets

Support the plant database you love!

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

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

Smarty Plants on Invasive Plants
March 15, 2004 - How can I find out if a plant is federally listed as an invasive?
view the full question and answer

Identification of bushes with red berries in Tennessee
January 31, 2012 - I was recently traveling thru Clarksville, TN and saw these bushes (at the shopping mall) that had clusters of small red berries on them. They were not a Holly that I know of. The leaves were not th...
view the full question and answer

Privacy plantings to replace invasive bamboo
June 22, 2007 - We are looking for good screening plants for our new house (the houses are very close). We like the way bamboo looks it is tall and narrow for the most part, but we do not want bamboo since it is inv...
view the full question and answer

Identification of plant with orange sap that glows at night
June 06, 2012 - I was just pulling up a plant and noticed that its sap was a kind of orange then I noticed it glowing orange at night. What kind of plant is this and is it dangerous?
view the full question and answer

Identification of invasive plant
March 26, 2010 - I have found an invasive plant species in Martindale, Texas that I would like to identify for family members. It is taking over their pasture and is difficult to eliminate. It has not bloomed yet but...
view the full question and answer

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