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Castilleja sessiliflora (Downy Painted Cup)

Castilleja sessiliflora (Downy Painted Cup)
Castilleja-sessiliflora-Downy-Painted-Cup Castilleja-sessiliflora-Downy-Painted-Cup-seed

Castilleja sessiliflora (Downy Painted Cup) is a hemiparasitic plant of dry, infertile soil that will attach to other dry soil plants such as short grasses to share their moisture and nutrients.  It is relatively short plant, reaching a maximum height of 12” with multiple unbranched stems that form a clump of soft spikes. Pale yellow tubular flowers protrude from pale green bracts.

If you will be starting Downy Painted Cup in a container, good hosts for many hemiparasitic species include low-growing grasses and sedges like Hairy Grama, Blue Grama, Buffalo Grass, Common Oak Sedge, Sweet Grass, and June Grass. With a knife make a 2" deep cut at the base of the host plant. Sow seed in the cut, making sure seed is not more than 1/8" deep. If host is transplanted at sowing time, the cut is not needed because damaged roots will be available for attachment by the parasite. You may also try sowing hemiparasitic and host species seeds together at the same time. To add hemiparasitic species to existing sites, scatter seed on soil surface (rake in if seed is large) in late fall.

Dormant bare root plants ship each year during optimal transplanting season: Spring (April-May).

Details
Catalog Number CAS54F
Seeds / Packet 500
Seeds / Ounce 200,000
Germination Code C(60), K, D
Sun Exposure Full Sun 
Soil Moisture Dry-Mesic  Dry 
Height 12 inches 
Bloom Color Cream 
Bloom Time May  June 
Plant Type Wildflowers (Forbs) 
Availability Seeds 
AVAILABLE PRODUCTS
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Packet $2.50
1/8 oz. $11.25
1/4 oz. $17.50
1/2 oz. $30.00
1 oz. $50.00
 
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Castilleja sessiliflora (Downy Painted Cup)
*This map shows the native and adventive range of this species. **Given appropriate habitat and climate, native plants can be grown outside their range.
BONAP Map Key
Present in state Present in county; native to state Not present in state  
Present in county, adventive in state    
Bouteloua gracilis (Blue Grama) Bouteloua hirsuta (Hairy Grama) Carex pensylvanica (Pennsylvania Sedge)
 
Koeleria macrantha (June Grass)
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North American Native Plants for Restoration and Gardening