En Español

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
2 ratings

Thursday - April 01, 2010

From: Rose City, MI
Region: Midwest
Topic: Shrubs
Title: Identification of poisonous shrub native to Michigan
Answered by: Nan Hampton

QUESTION:

This is found throughout the northern portion of the LP and in the UP. It grows to 3' as a shrub. It's leaves twigs and flowers ARE POISONOUS! It blooms in the Spring and can be found in the sun and in bogs, as well as a few other locations. This plant is native to Michigan. I can not identify it.

ANSWER:

You haven't given Mr. Smarty Plants much to go on except that it is a shrub that is poisonous and is native to Michigan.  However, here are a few possibilities: 

Kalmia angustifolia (sheep laurel)

Kalmia polifolia (bog laurel)

Cicuta maculata (spotted water hemlock)

Baptisia alba (white wild indigo)

Datura wrightii (sacred thorn-apple)

Dirca palustris (eastern leatherwood) and here are photos and more information

Andromeda polifolia (bog rosemary)

Rhamnus alnifolia (alderleaf buckthorn) and here are photos and more information

Viburnum opulus var. americanum (American cranberrybush)

The plants above are native to Michigan and are all listed on one or more of the following toxic plant databases:

Poisonous Plants of North Carolina Database, Cornell University Plants Poisonous to Livestock, and Canadian Poisonous Plants Information System.

You can see a list of Michigan shrubs that would potentially grow in bogs by doing a COMBINATION SEARCH in our Native Plant Database and choosing 'Michigan' from Select State or Province, 'Shrub' from Habit (general appearance), and 'Wet - soil is saturated with water' from Soil moisture.

If none of these are the plant you are trying to identify, please take photos and send them to us and we will do our very best to identify it.  Please visit Mr. Smary Plants' Plant Identification page for instructions for submitting photos.

Here are photos from our Image Gallery of some of the plants above:


Kalmia angustifolia

Kalmia polifolia

Cicuta maculata

Baptisia alba

Datura wrightii

Andromeda polifolia

Viburnum opulus var. americanum

 

 

More Shrubs Questions

How to combat weeds growing in mulch
September 12, 2008 - Trying to decide on either ground cover plants, or some type of gravel. We have a new house where the builder has planted small shrubs in the full sun flower bed next to house. The bed has mulch at th...
view the full question and answer

Leaves on yaupon holly turning brown/black
July 20, 2011 - Arlington TX Yaupon Holly has leaves on stems closer to the bottom of the plant and moving up that are turning brown/black. Is this a disease, over/under watering? There is black gummy soil, but it ha...
view the full question and answer

Plant identification for shrub in Florida
September 03, 2011 - On our street we have ornamental shrub planted in the median that has small waxy green leaves, produces small fragrant white flowers, and red berries with white pulp and small seeds on the inside. Th...
view the full question and answer

Limp leaves on Texas purple sage in Magnolia TX
July 22, 2010 - Recently planted Texas purple sage, some of it looks healthy and has new blooms, but a few of the plants have limp leaves and are thin at the bottom. I read the article on cotton root rot, but am not ...
view the full question and answer

Native plants that do not attract any kind of wildlife.
October 19, 2015 - Hi I live in Bexar County, Texas and I was wondering what would be some good NATIVE plants that could be planted in yards that do not attract any kind of wildlife (so no berries, nuts, fruits, thick c...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center