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Bransford, W.D. and Dolphia
Castilleja indivisa Engelm.
Entireleaf indian paintbrush, Texas paintbrush, Indian paintbrush, Scarlet paintbrush, Entire-leaf indian-paintbrush
USDA Symbol: CAIN13
USDA Native Status: Native to U.S.
One of the popular paintbrushes, this showy annual or biennial grows 6-16 in. high. Its several unbranched stems form clumps topped by bright-red, paintbrush-like spikes. The flowers are actually inconspicuous and greenish, but are subtended by showy, red-tipped bracts. Together, the flowers and bracts form 3-8 in. spikes.
The roots of this plant will grow until they touch the roots of other plants, frequently grasses, penetrating these host roots to obtain a portion of their nutrients. Transplanting paintbrush may kill it. Indian paintbrush has a reputation for being unpredictable. In some years, when bluebonnets (which flower at approximately the same time as Indian paintbrush) are especially colorful, paintbrush will have only an average flowering year. Other years, paintbrush is spectacular.
Plant Characteristics
Duration: Annual Habit: Herb Leaf Margin: Entire Size Notes: 6-16
Flower: Flowers in 3 inch spikes.
Fruit: Size Class: 0-1 ft.
Bloom Information
Bloom Color: Red , Orange
Bloom Time: Mar , Apr , May
Bloom Notes: Castilleja is an unusual member of the Scrophulariaceae, the snapdragon family. Its vivid “flower” color is actually provided by bracts – not flower petals - which are grouped around and under each of the inconspicuous flowers located on the upper third of the plant.
Distribution
USA: AR , LA , OK , TX
Native Distribution: S.e. OK, e. TX & LA
Native Habitat: Prairie, Plains, Meadows, Pastures, Savannahs, Woodlands edge, Opening, Roadsides
USDA Native Status: L48(N) Growing Conditions
Water Use: Medium
Light Requirement: Sun
Soil Moisture: Dry
Soil pH: Acidic (pH<6.8)
Soil Description: Sandy soils. Sandy Loam, Sandy, Medium Loam, Clay Loam, Clay
Conditions Comments: The roots of this plant will grow until they touch the roots of other plants, frequently grasses, penetrating these host roots to obtain a portion of their nutrients. Transplanting paintbrush may kill it.
Benefit
Use Ornamental: Pocket prairie, Wildflower meadow, Shortgrass meadow, Grows in clumps, Garden
Use Wildlife: Nectar-Hummingbirds, Nectar-insects.
Conspicuous Flowers: yes
Attracts: Butterflies
Larval Host: Buckeye butterfly.
Propagation
Propagation Material: Seeds
Description: Seed in open, sunny sites for best results. Indian paintbrush seed may require a cold wet period in the winter to germinate. Plant the seed in the fall and rake it into loose topsoil to ensure good seed/soil contact. Seeds are exceptionally small (4 million seeds per pound), commercially available, depending on the previous year’s seed crop and can be expensive. The recommended seeding rate in 1/4 pound per acre.
Seed Collection: Seeds are formed in capsules at the base of each flower. Seed capsules may be carefully collected by hand April – May when the capsules are dry and brown.
Commercially Avail: yes
Maintenance: After flowering ceases, allow seeds to completely mature before mowing for reseeding or collecting to plant in a new area. Since C. indivisa is an
annual, it is essential that this species be allowed to reseed for an abundant display for the following year.
Find Seed or Plants
Order seed of this species from Native American Seed and help support the Wildflower Center.
Mr. Smarty Plants says
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March 29, 2009
Many years ago I tried to grow some paintbrush seedlings with some seeds you sent me and found it difficult. Based on pictures in the literature I noticed that paintbrushes do not seem to affect their...
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February 28, 2008
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How are wildflowers in Central Texas used by wildlife?
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Herbarium Specimen(s)
NPSOT 0745 Collected Apr 16, 1994 in Bexar County by Mike Fox
Wildflower Center Seed Bank
LBJWC-1282 Collected 2013-04-26 in Brazoria County by Lady Bird Johnson Wildflower Center
From the Archive
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Wildflower Newsletter 1990 VOL. 7, NO.1 - Congress Eyes Larger Issue, Research Update, Director's Report, Carlton B. Lees ...
Wildflower Newsletter 1990 VOL. 7, NO.3 - Is Wildflower Collecting a Good School Activity, Wildflower Center Study Finds C...
Wildflower Newsletter 1990 VOL. 7, NO.6 - Members Respond to Grasslands Appeal, Wildflower Center Opening Midwest Regional...
Wildflower Newsletter 1992 VOL. 9, NO.3 - Water and Landscaping with Native Plants, Research Update, Research Director's R...
Wildflower Newsletter 1992 VOL. 9, NO.5 - Ten Year Anniversary Celebration, A Look Back at Our First Decade, Celebration o...
Recommended Species Lists
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Metadata
Record Modified: 2008-12-17
Research By: TWC Staff
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