Bikers, beware!
Yellow flowers along a trail — look; do not touch.
The wild parsnip, evil sister of Queen Anne’s Lace, has arrived.

The invasive wild parsnip is spreading America, like wildfire!
The plant has a dangerous oil!
The fluids can be harmful to health!

Skin, plant juices, and sunlight make a fiery mix!
The chemical reaction results as burns and blisters.
This is phytophotodermatitis. Ouch!

News articles referenced:
http://www.midwestweekends.com/do_it_now/summer/wild_parsnip.html

http://www.inquisitr.com/840436/poison-parsnip-toxic-and-invasive/#20sgmozkIARPPc53.99

http://ragbrai.com/forums/topic/poisionous-weeds-alert-if-you-should-venture-off-of-the-beaten-path/