Thickleaf Ragwort
Senecio crassulus
Patrick Alexander from Las Cruces, NM
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Senecio
- Species:
- Senecio crassulus
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 2-3 ft
- Bloom Months:
- jun, jul, aug
- Bloom Colors:
- Yellow
Native Range
United States: Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, South Dakota, Utah, Wyoming
Keystone Species Ranking
- Bee Keystone:
- ★★☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)
Reported Fauna Sightings
Bees: Black-tailed bumble bee (Bombus melanopygus), Black-tailed bumble bee (Bombus melanopygus), Forest bumble bee (Bombus sylvicola), Forest bumble bee (Bombus sylvicola), Frigid Bumble Bee (Bombus frigidus), Frigid Bumble Bee (Bombus frigidus), Indiscriminate cuckoo bumble bee (Bombus insularis), Indiscriminate cuckoo bumble bee (Bombus insularis), Two-form bumble bee (Bombus bifarius), Two-form bumble bee (Bombus bifarius)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate