Tragopogon dubius, Yellow Salsify
Scientific Name: Tragopogon dubius
Common Name: Yellow Salsify
Also Called: Common Salsify, Goat's Beard, Goatsbeard, Meadow Goat's-beard, Salsifis Majeur, Salsify, Western Goat's Beard, Western Salsify, Wild Oysterplant, Yellow Goat’s Beard
Family: Asteraceae, Sunflower Family
Synonyms: (Tragopogon dubius ssp. major, Tragopogon major)
Duration:Annual or biennial.
Size: Up to 2 feet or more.
Growth Form: Forb/herb; erect, tall, stems with few branches, milky sap.
Leaves: Green; alternate; narrowly linear, slender grass-like with pointed tips to 10 or more inches long, tapering, sessile, clasping, usually mostly glabrous.
Flower Color: Pale lemon yellow; large solitary heads, 2 inches wide on tips of hollow stalks; bracts or phyllaries subtending flower heads in single series distinctly extending beyond ray flowers; seeds on a whitish large puff-ball, dandelion like; fruit is an achene.
Flowering Season: June to September following monsoon rains.
Elevation: 3,500 to 7,000 feet.
Habitat Preferences: Various habitats throughout Arizona, fields, open areas and along roadsides.
Recorded Range: Common throughout all of the United States, Canada, Northwest Territories and Newfoundland. It can be found throughout parts of northern and southern Arizona.
North America & US County Distribution Map for Tragopogon dubius.
U.S. Weed Information: Tragopogon dubius is listed in: Weeds of Kentucky and adjacent states: a field guide, Weeds of the Northeast, Weeds of Nebraska and the Great Plains, Invasive exotic pest plants in Tennessee, Weeds of the United States and Canada, and Weeds of the West. Plants included here may become weedy or invasive.
Invasive/Noxious Weed Information: No data available.
Wetland Indicator: No data available.
Threatened/Endangered Information: No data available.
Comments: Yellow Salsify, like most species of the genus Tragopogon in the United States, is a European introduction, not aggressive and not common but now naturalized and spread throughout North America. In Arizona it is found in sunny open areas and especially along roadsides.
Arizona has one native species of this mostly invasive genus, Remarkable Goatsbeard, Tragopogon mirus, which is recorded from Coconino County, Arizona.