Orobanchaceae (broomrape)
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How to Grow Wood Betony (Pedicularis canadensis) from Seed
Preliminary results suggest that seeds do not store well and must be sown or pretreated soon after harvest.
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How to Grow Scarlet Painted-Cup (Castilleja coccinea) from Seed
Although a generalist hemiparasite, the choice of host plant makes a substantial difference when growing in containers.