What is abies nigra?

When potatoes turn green are they toxic? Do zebras have beaks? How do sunflowers make seeds? How do taiga plants survive? What kind of symbiosis explains the relationship of garden plants and weeds? Where do cactus flowers originate from? I live in SC there are pine trees in and around the area They are tall have with little tiny pine cone that stay small. would like to know the type and where to purchase? How can I efficiently remove mulch from my yard? Why are my aloe leaves turning yellow? Why does romaine lettuce bolt and how can it be prevented? Will vinegar and salt effectively kill grass? Can you use seaweed plaster as a dressing for cuts and grazes? Do bees fertilize your fruit? What is a portion of a field that has been divided for vegetable growing called? How can I properly care for my lace aloe vera plant to ensure it thrives and remains healthy? Which flower is available in nearly every colour except blue? How can I create an effective garden plan? What are some challenges the oak tree has in its environment? How long does a black lemur live? How can I successfully grow clematis from seed?