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You are here: Home / biology / Bull Thistle {InstaScience}

Bull Thistle {InstaScience}

August 20, 2015 by Paige Hudson

The Bull Thistle, a sentinel of vacant fields in the weed family. Come see facts, videos, and activities!

Bull Thistle is one of those “weeds” that almost all of us are familiar with! Its characteristic purple flowers are easy to spot as they adorn the top of the stem.

Plus, its spiky stem acts like a sentinel on the border of vacant fields and along trails. This weed definitely prefers wide, open, sunny areas!

But did you know that the flowering stems you see are actually the second year foliage for the Bull Thistle? The first year this weed actually develops a close-to-the-ground rosette of spiky, but hairy leaves. If all goes well, the next year, it will send up a 2 to 3 feet tall stem that flowers.

These flowers can be self-pollinated or insect-pollinated, usually by bees who love the Bull Thistle! The seeds that develop have long thin “hairs” that make it super easy to travel to its next location via the wind.

The seed can remain dormant for several years, and will germinate when conditions are just right.

Fun Fact – The Bull Thistle is native to Europe and Asia, but now can be found throughout North America!!

Teaching Science at Home

Want to learn more about the Bull Thistle? Check out the following articles:

  • The Bull Thistle from King County’s Noxious Weeds
  • Bull Thistle from Edible Wild Food
  • {Video} Weed of the Week – Bull Thistle

Related Homeschool Science Activities

Keep the learning going with these science activities!

  1. Bull Thistle Nature Study – Head outside to find some Bull Thistle flowers. Once you spot the tall spiky stems, start looking around in the area for the first year rosettes.
  2. Seed board – Collect a few of the Bull Thistle seeds and use them to make a seed board. Don’t forget to add in a few of the maple seeds you collected from last week too!

Filed Under: biology, instascience, nature study Tagged With: flowers, instascience, plants, seeds, summer, wildflowers

Welcome to the Elemental Blogging Laboratory

 
profile picWelcome to the Elemental Blogging Laboratory, a.k.a. the Eb Lab. Here at the lab, I have the pleasure of sharing with you all my passion for mixing up solutions for homeschool science! My name is Paige Hudson. I am a homeschooling mom and science curriculum writer for Elemental Science.
 
Why do I call this blog the "Eb Lab"? It is because I am scientist at heart and by profession, so it pretty much spills into everything I do. I love to share tips and tools with fellow educators as they seek to share science with their students!
 
That is what this blog is all about. One homeschooler to another, sharing her area of expertise, seeking to support you as you teach your students about the wonders of science.
 
So, grab your lab coat, notebook, and goggles...well maybe not the goggles because let's face it nobody looks good in those...and you probably don't have a lab coat lying around your house either...
 
So, grab a cup of coffee and notebook, and head on in to the Eb Lab to gather tools for homeschool science, tips for homeschooling, and the latest Elemental Science news!
 
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