Entireleaf Indian Paintbrush
Castilleja indivisa
- Native to:
- Mexico, United States
iNaturalist: © sunasak (iNaturalist #111213001)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Orobanchaceae
- Genus:
- Castilleja
- Species:
- Castilleja indivisa
- USDA Symbol:
- CAIN13
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Parasite
- Height:
- 45 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- mar,apr,may,jun
- Bloom Colors:
- red, orange, yellow, cream
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Reported Fauna Sightings
Bees: American bumble bee (Bombus pensylvanicus) Moths:White-lined sphinx moth (Hyles lineata)
Garden & Ecology Notes
- Wildlife Value:
- hummingbirds, butterflies, bees
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Benefits from periodic fire which reduces competition and exposes bare soil for seed germination. Common in fire-maintained prairies and grasslands.
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
- Notes:
- prefers open, sunny locations
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–60 days
- Notes:
- Hemiparasitic; requires host plant roots (typically grasses) for successful establishment. Surface sow, as seeds need light to germinate.