No this isn’t a jellyfish, sea anemone, or a moist spider (both of these have been suggested). It is a flower I photographed today at the San Francisco Botanical Garden at Strybing Arboretum in Golden Gate Park. Found in the Mesoamerican Cloud Forest area, it is of the proteaceae genus, protea neriifolia, commonly known as “Pink Mink.” (Good thing the garden is well labeled!)
Here’s a photo closer in:
View this photo larger.