Variable Panicgrass
Dichanthelium commutatum
- Native to:
- Bahamas, Cuba, Dominican Republic, El Salvador, Guam, Guatemala, Haiti, Honduras, Mexico, Nicaragua, United States, Virgin Islands
iNaturalist: © nathanaaron (iNaturalist #229143964)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Dichanthelium
- Species:
- Dichanthelium commutatum
- USDA Symbol:
- DICO2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 100 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug,sep
- Bloom Colors:
- green, purple
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Can resprout from rhizomes after fire; fire may reduce competition and promote seed germination.
Soil Requirements
- Soil Type:
- sandy, acidic, nutrient-poor soil
- pH:
- 4.5 - 6.5 (acidic to slightly acidic)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Commonly found in open woods and sandy areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold moist stratification for 30-60 days to break dormancy.
Pre-treatment: De-tufted seed is planted into round cell greenhouse flat liners with 38 cells per flat that have been filled with coarse processed bark and composted pine bark growing medium. Seed is surface sown at a rate of 3-5 seeds per cell and lightly covered with starter sized, 1/16" - 1/8" diameter, granite poultry grit to combat damping off diseases. Prepared flats are lightly hand watered to slightly moisten the growing medium.
Establishment: Germination typically occurs 7 - 10 days after placement in the greenhouse. However, 50% of total seedlings emerge in 14 days; the balance by 3 weeks after sowing according to another protocol. The plant grows in woods and thickets from Massachusetts to Michigan and Missouri, and south to Florida and Texas.
Source: npn.rngr.net