(T.M.Barkley & R.M.Beauch.) W.A.Weber & A.Löve
Packera ganderi is a rare species of flowering plant in the aster family known by the common name Gander's ragwort. It is endemic to southern California, where it is known from a few occurrences in San Diego and Riverside Counties.
Packera ganderi is a perennial herb producing a single erect stem which grows to a maximum height of 50 to 80 centimeters. It is mostly hairy and green, but may have some fuzzy areas and a purple tinge. The leaves have rounded or oval blades with toothed edges or shallow lobes. The blades are often thick and somewhat tough, measuring a few centimeters long and borne on petioles longer than themselves. Leaves occurring farther up the stem are smaller and most lack petioles.
The inflorescence contains up to 6 or 8 flower heads, each lined with green-tipped, yellow-edged phyllaries. The head contains many golden yellow disc florets and several orange ray florets each about a centimeter long.
- Barkley, T. M. and R. M. Beauchamp. (1974). A new Senecio (Compositae) from California. Brittonia 26:2 106-8.
- Jepson Manual Treatment
- CalFlora Database: Packera ganderi (Gander's ragwort)
- USDA Plants Profile
- Flora of North America
- California Native Plant Society Rare Plant Profile
- Photo gallery
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