Identification             Text Version

1. This plant can grow up to 10 ft. tall and has a stem that is 4 to 8 sided.  

A. leafy spurge
B. purple loosestrife
C. dyers woad
D. scotch thistle

2. This plant has often been confused with a snapdragon.  
A. purple loosestrife
B. leafy spurge
C. hoary cress
D. dalmation toadflax
3. Leaves are toothed or lobed and are covered with a fine hair. Flowers are small, ¼ to ½ inch.  
A. Russian knapweed
B. scotch thistle
C. spotted knapweed
D. musk thistle
4. This "thistle" grows up to 5 feet tall, with spikes radiating out from the flower.  
A. musk thistle
B. bull thistle
C. yellow starthistle
D. scotch thistle
5. This plant has a cream colored mid rib running through the leaf. The flowering top forms an umbrella like top.  

A. dyer's woad
B. leafy spurge
C. hoary cress
D. dalmation toadflax

6. This plant produces flowers that are pink to purple and have black tipped bracts.  
A. scotch thistle
B. dalmation toadflax
C. spotted knapweed
D. Russian knapweed
7. This plant has a tap root that is hollow near the surface and develops terminal, solitary, 1-3 inch wide flowers.  
A. white top
B. dyer's woad
C. yellow starthistle
D. musk thistle
8. What looks like yellow-green flowers are in reality 2 heart-shaped bracts enclosing the true flower.  
A. leafy spurge
B. dalmatian toadflax
C. Russian knapweed
D. dyer's woad
9. Leaves are toothed or lobed and are covered with a fine hair and form "wings" along the stems.  
A. Russian knapweed
B. scotch thistle
C. hoary cress
D. yellow starthistle
10. Many small white flowers form flat-topped clusters atop the plant. Heart-shaped seed pods.  
A. spotted knapweed
B. Russian knapweed
C. hoary crest
D. purple loosestrife

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