Blue flowers and red filaments

 

Blueweed

 

The Viper's Bugloss (Echium vulgare) produces a lot of rich nectar, a blue pollen, and attracts pollinators.  It looks great, but, should be avoided.

Echium vulgare

  

The prickly hairs can be skin irritants. The plant contains pyrrolizidine alkaloids; these can cause liver damage to livestock and humans. The alkaloid is also in the honey.  The honey should not eaten regularly or for long terms.