sentences:  The salsifies are mostly natives of Europe and Asia, but several species have been introduced into North America and Australia and have spread widely there.There is one species sometimes considered native to North America, "Tragopogon mirus", but it is in fact a hybrid of two non-native species.Some of the more common species of "Tragopogon" are known, in the regions where they are most common, by the common names goat's beard, goatsbeard, salsify, or common salsify, without further qualification.