Cooksonia (SciiFii)

Cooksonia is a genus of primitive land plants that originally lived from the middle of the Silurian (the Wenlock epoch) to the end of the Early Devonian, total time span of 433 to 393 million years ago, as an extinct species of Cooksonia, and was once extinct, but has since been brought back from extinction by SciiFii. Cooksonia are the oldest known plant to have a stem with vascular tissue and is thus a transitional form between the primitive non-vascular bryophytes and the vascular plants. Cooksonia come in two species, Cooksonia vulgaris and Cooksonia americanus. Individuals are small, a few centimetres tall, and have a simple structure. They lack leaves, flowers and roots, although they naturally grow from rhizomes like several other plants. The rhizomes of Cooksonia is nontoxic to any animal species and can be used by people as ingredients for different kinds of food, having a similar tasting to a cross between the taste of edible mushrooms and cinnamon combined. They have a simple stalk that branches dichotomously a few times. Each branch ends in a sporangium or spore-bearing capsule. The capsules are toxic to most animals, so most animals leave the Cooksonia alone, except humans, who are immune to the toxins and can make the Cooksonia capsules into ingredients for various man-made foods. Cooksonia are often found in gardens, parks, and yards as ornamental plants, as well as in crops as farmed plants, but there are established feral populations of both Cooksonia species found in the coastal parts of California, Oregon, Washington, Canada, Baja California, and the Pacific coast of mainland Mexico, most likely as a result of accidental releases. However, there is no evidence that Cooksonia are invasive to the modern world, as they grow side-by-side with native modern North American plants and mushrooms.