| Scientific Name: | Caltha palustris |
| Common Name: | yellow marsh marigold |
| Family Name: | Ranunculaceae |
| Origin: | Europe, North America |
| Hardiness Zone: | Zone 3: (-40 to -34 °C) |
| Plant Type: | Aquatic plant, Herbaceous perennial |
| Mature Size: | 0.2 - 0.4m x 0.3 - 0.6m (height x width) |
| Habit: | Dense, Spreading |
| Form: | Mounded |
| Texture: | Medium - coarse |
| Landscape Uses: | Aquatic - ponds, Herb, Wetland - bogs |
| Exposure: | Full sun |
| Soil or Media: | Bog |
| Leaves: | Simple, Alternate, Soft flexible, Glabrous, Orbicular, Ovate, Reniform, Dentate |
| Flowers: | Corymb, Yellow, Apr-May |
| Fruit: | Aggregate fruit, Follicle, Yellow, Brown, Jun |
| Key ID Features: | |
| Semi-aquatic; stems hollow, membranous sheaths at nodes; leaves alternate, most blades expand to 10-15cm long x 8-14cm wide, toothed; flowers are buttercup-like, 3-4cm wide. | |