Grassy Tarweed
Madia gracilis
Unknown author
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Madia
- Species:
- Madia gracilis
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 3-4 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- apr, may, jun, jul, aug
- Bloom Colors:
- Yellow, Green
Native Range
United States: California, Idaho, Maine, Montana, Nevada, Oregon, Utah, Washington, Canada: British Columbia
Reported Fauna Sightings
Bees: Yellow-faced bumble bee (Bombus vosnesenskii), Yellow-faced bumble bee (Bombus vosnesenskii)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to open, dry habitats; prefers full sun
Germination Information
Pre-treatment: 45 days of cool/moist stratification at 38°F
Establishment: This plant is found primarily in the Western US and Canada, stretching as far south as California and as far East as Montana. Avoid dry heat treatment as it decreases germination.
Source: npn.rngr.net