American Water Plantain
Alisma subcordatum
- Native to:
- Canada, United States
Source: Wikimedia; Credit: Robert H. Mohlenbrock. USDA NRCS. 1995. <i>Northeast wetland flora: Field office guide to plant species.</i> Northeast National Technical Center, Chester, PA. Courtesy of USDA NRCS Wetland Science Institute.







Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Alismataceae
- Genus:
- Alisma
- Species:
- Alisma subcordatum
- USDA Symbol:
- ALSU
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- white, pink
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, wading birds
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination and should be surface-sown on saturated substrate. Germination is best with cold stratification followed by warm temperatures.
The above propagation data sourced from Claude AI