Spirea, or meadowsweet, is the German namesake of SpirsÃ¤ure (salicylic acid), and ultimately aspirin. The name Aspirin was derived from the name of the chemical ASAâAcetylspirsÃ¤ure in German. SpirsÃ¤ure (salicylic acid) was named for the meadowsweet plant, Spirea ulmaria, from which it could be derived.
Look for both series back-to-back beginning at 9:00/8:00c. [12/16/14 - 10:28 AM]. Animal Planet's Treehouse Masters Returns for Season Three on January 9 at 10:00PM ET. Plus, one lucky viewer gets the opportunity to win their very own Pete Nelson treehouse with the Ultimate Treehouse GiveAway contest!
Pete Nelson Sits and Sits and Sits. Pete Nelson and his Treehouse Masters crew are back to fulfill sky-high dreams for people across the country. Pete surprises some very deserving child (moreâ¦) Pete Nelson and his Treehouse Masters crew are back to fulfill sky-high dreams for people across the country. Treehouse Masters Season 5.