Wet causes unusual growth.

"I don’t recall seeing anything like this before."

Yellow Fungus (Phragmidium) on Wild Rose and other Plants

"Returning from a walk with the dog I was struck by a mass of bizarre fire orange fungus tentacles covering all the stems of some low lying juniper bushed in our driveway. This is the first time I have seen it in 21 years of living here with the same juniper bushes."

About a week ago, we noticed an intruder in our front yard -- a vivid yellow, blob-like substance that appeared to be invisibly oozing across our garden mulch like the beginnings of a horror film.