Tumbleweeds tend to collect along roadsides and fences in Orange County, dropping their seeds for the next year. This can lead to some spectacular clusters of car-sized puffballs of plant.
SR-55 off-ramp at Edinger
In a few weeks*, these will dry out, turn brown, and get picked up by the Santa Ana winds. They’ll roll along the road until they hit a fence, or perhaps fetch up against another cluster, and the cycle will start all over again.
* Or possibly already — I took this photo about 3 weeks ago, and with this past week’s heat wave, I wouldn’t be surprised at all.