Little Amphianthus ⚠️ Threatened
Gratiola amphiantha
- Native to:
- United States
iNaturalist: © jonas_meyer (iNaturalist #265618964)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Plantaginaceae
- Genus:
- Gratiola
- Species:
- Gratiola amphiantha
- USDA Symbol:
- AMPU7
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 10 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- mar,apr,may
- Bloom Colors:
- white, purple
Soil Requirements
- Soil Type:
- sandy, acidic, nutrient-poor soil
- pH:
- 5.5 - 6.5 (slightly acidic to neutral)
- Drainage:
- poor drainage tolerated
- Moisture:
- consistently moist
- Notes:
- often found in shallow, temporary pools
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination. Best sown on moist soil surface in cool conditions.
The above propagation data sourced from Claude AI