Persian Everlasting Pea (Lathyrus Rotundifolius) - A very old species, it is not so common as the larger kinds, though good from its earliness and freedom of flowering.
Above all, we must consider our present point that Platonic influence is a sign of earliness in an Aristotelian work; and generally, the same man may both think and write differently at different times, especially if, like Aristotle, he has been a prolific author.