Splitleaf Indian Paintbrush

Castilleja rhexiifolia

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Orobanchaceae
Genus:
Castilleja
Species:
Castilleja rhexiifolia
USDA Symbol:
CARH4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
60 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug
Bloom Colors:
red, pink, magenta, crimson

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Reported Fauna Sightings

Bees: High country bumble bee (Bombus kirbiellus), Yellow bumble bee (Bombus fervidus), Yellow head bumble bee (Bombus flavifrons)

Garden & Ecology Notes

Wildlife Value:
hummingbirds, butterflies, bees
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from root crown following fire; benefits from periodic fire that reduces competition from woody plants in subalpine meadows.

Soil Requirements

Soil Type:
moist, well-drained, rocky or sandy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
often found in alpine and subalpine meadows

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–60 days
Notes:
Hemiparasitic; requires host plant roots for successful establishment. Seeds need light for germination and should be surface-sown.

Pre-treatment: Seeds are placed into a 150 day cold, moist stratification using moistened paper towels in an unsealed ziplock bag in a refrigerator at 2C or they can be fall sown outdoors.

Source: npn.rngr.net