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?


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

Sunday - September 16, 2012

From: Portland, OR
Region: Northwest
Topic: Herbs/Forbs
Title: Nativity of Bidens frondosa from Portland OR
Answered by: Barbara Medford


Is Bidens frondosa (Beggar's Tick) native to North America or is it introduced? If introduced, is it considered invasive?


According to his USDA Plant Profile Map, Bidens frondosa (Devil's beggartick) is indeed native to North America, and to Multnomah County OR.

As to its invasiveness, here are comments we found on it:

From Illinois Wildflowers: "This plant is easy to grow, and can become a weedy pest."

FromWikibooks: "The sticky seeds make this plant a nuisance for pet and livestock owners, and it is generally seen as a weed."

Summary: Bidens frondosa (Devil's beggartick) is native to North America; we found no reference to its being invasive but it was widely described as a weed. You must draw your own conlusions on that.


From the Image Gallery

Devil's beggartick
Bidens frondosa

Devil's beggartick
Bidens frondosa

More Herbs/Forbs Questions

Failure of Gerbera daisies in hanging basket
July 08, 2008 - I had perennial Gerbera daisies in a hanging basket, the flowers died,I was not sure whether to remove just the flower or to go from the flower to the stem at the plants main stem? There is nothing re...
view the full question and answer

Need help fighting grass burs in La Grange, TX.
January 22, 2013 - I have 4 acres of wildflowers planted in my front yard. Unfortunately, grassburs have crept in & I need to control them with a pre-emergent. Will this keep the wildflowers from blooming? Also, would l...
view the full question and answer

Problems with non-native petunias from Hodgeville, KY
May 12, 2013 - Planting petunias again in a house border bed.. It has been a tradition for 30+ years to plant the small upright petunias in this particular bed. It started as a Mothers Day gift to my Grandmother, ...
view the full question and answer

Identity of blue sage-like plant blooming in September in Lubbock TX
November 07, 2014 - This has bothered me for years. It looks like a miniature version of Salvia azure. About a foot talk with multiple stems. Flowering in September. Grows on the hillsides overlooking Buddy Holly Lak...
view the full question and answer

Native plants that are dog-proof in South Texas
July 13, 2008 - I live in Odem, Texas and would like to use only native plants in my front and backyard. I have two puppies who love to dig. What plants should I use that require minimal attention from me and will no...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center