Yellow, daisy-like flowers. The leaves are fused around the stem to form a cup, thus the common name.
Full sun; moist, well drained to wet soils.
USDA Hardiness Zone
3 - 9
July - September
Pests and Problems
Additional pests and problems that may affect this plant:
No serious insect or disease problems.
Found in prairies and open woods. Listed as threatened in Michigan.