"Warm" meaning "above 32F."
A non-native invasive species, but a source of color at the black chain-link gate. The fruit of the tomato relative bittersweet nightshade Solanum dulcamara.
Just a few feet away, the fruit of the fungus Exidia recisa, having weakened the wood of an overhead branch, has fallen with its food to the ground. There is no accepted common name for this mushroom, but I like "winter jelly" or maybe "willow jelly" since it's one of the only mushrooms common in winter, and it mostly feeds on willow branches.