Very large yellow Tibellus sp. I found at the park. It was on a leaf, and quickly hid underneath when it saw me. It was very large for a spider I've seen on a plant, and the color threw me off. I had hoped it would be a nursery web spider, because I've not seen one of those in person before.

The color was extremely yellow for a slender crab spider. It only has one spot on the posterior third of the abdomen instead of a pair. Does not appear to have any longitudinal lateral stripes on either side of the mid stripe, though that may just be due to how large the spider is. In the second picture it appears there may be a line starting at the anterior lateral edge, though you could easily convince me that is nothing.

The eyes match well.