Scorzonera hispanica, a plant with lanceolate leaves cultivated for its dark-skinned edible root
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Tragopogon porrifolius, a plant with linear leaves cultivated for its light-skinned edible root and herbal properties
Tragopogon dubius (western salsify, western goat's-beard, wild oysterplant, yellow salsify, yellow goat's beard, goat's beard, goatsbeard, common salsify, salsify) is a species of Salsify native to southern and central Europe and western Asia and found as far north and west as northern France.
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Western Salsify is quite similar to the generally commoner Meadow Salsify, T. pratensis, but the bracts which show behind the flower, a distinctive feature of salsifies, are longer and more noticeable.
In one of the episodes from the winter series, Fearnley-Whittingstall captures, prepares and cooks rabbits that he finds on his property and introduces viewers to a root called "salsify"—according to the host, salsify was popular during the Victorian era but has since declined in popularity.