Native Plants
![](../_images/smarty_plants.gif)
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.
![](../_images/mr_smarty_plants_logo_web_200w.jpg)
rate this answer
![](../_images/star_00.gif)
Friday - September 25, 2009
From: Kansas City, MO
Region: Midwest
Topic: General Botany
Title: Are freshwater sponges poisonous if eaten by a dog?
Answered by: Nan Hampton
QUESTION:
Are freshwater sponges, native to Missouri, poisonous if eaten by a dog?ANSWER:
Mr. Smarty Plants expertise is in native plants, not native animals. It is true that freshwater sponges can look like plants because they often have algae growing on them, making them green. In fact, sponges were thought to be plants until the 19th century. Sponges, however, aren't plants—they are animals, members of the Kingdom Animalia and Phylum Porifera. You can read about freshwater sponges in A Field Guide to Aquatic Phenomena from the University of Maine and from the Forest Preserve District of Cook County (Illinois). As to whether they are toxic to dogs are any other animal, not too much is known about their toxicity. Principles and Methods of Toxicology edited by Andrew Wallace Hayes (5th edition, CRC Press, 2007) says that a couple of freshwater sponges from Australia and Europe can cause skin irritations and even more serious symptoms, including death. You might try to identify your freshwater sponge and then search the internet for any toxicity associated with its particular species.
More General Botany Questions
Seaweed seed dispensers in Long Island, NY
January 03, 2013 - Several months ago, we found what are probably seaweed seed dispensers. They are dark brown, hard, four sharp points,section where it would have connected to the main plant and an open hole where the...
view the full question and answer
Compare Natives to Lawn for Carbon Footprint Benefits in Durham, New Hampshire
September 22, 2010 - Are there carbon sequestration rate tables for turf (lawn) and bushes, shrubs, trees? I want to compare the carbon footprint benefit of lawn versus the same area put into native plantings.
view the full question and answer
Official definition of native plants
March 06, 2008 - Does the Wildflower center have an official definition of "native" plants?
view the full question and answer
Forum for reporting rare plants
July 05, 2014 - Hi Mr. Smarty Pants,
I was wondering if there is a forum for Texans to submit sightings of native plants they find? I live in Medina County and 2 years ago had a rare native plant growing in my yard ...
view the full question and answer
Clarification for botanical (Latin) names for Herbertia
June 17, 2010 - I am looking for a clarification of scientific names. In the classic wildflower book 'Wildflowers of Texas' the author, Geyata Ajilvsgi, attributes the plant Herbertia with the name Alophia drummon...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |