Presume a decade of darkness, after a several months of steadily shortening daylight. Assume that the temperature and weather patterns remain (inexplicably) fairly unchanged.
Ten years later, when the sun comes back: which species of flora and fauna are most likely to be capable of recovering? I know that some plants produce seeds that can sprout after extended period of dormancy, but not which species have seeds for which a decade of unsuitable environment is nothing, and which are likely to die out after a few years of not being able to reproduce/grow. Categories are useful, it doesn't need to be specifics; e.g., pitted fruits or pines or root veggies, or whatever. The internet just wants to tell me how long I can store my seed packets for, and I want to know which types of seeds can actually pull off long-term storage in the wild.
If you've got any idea which plants' survival chances might also suffer more/less from the depradations of desperate starving animals, that would also be helpful, but isn't as critical.