Cold Climate Cactus

The Echinocereus triglochidiatus cactus plants are opening their buds today and I think they are some of the most interesting and beautiful flowers. They're beautiful in a strange way and are surely some of the most unusual flower for any plant. If I can get some similar plants to open at the same time I should get some good seeds. Otherwise I'll be happy with any seeds from these plants. There are some triglochidiatus, triglochidiatus var. mojavensis and triglochidiatus var. gonacanthus, so I'm not sure if I'll end up with any pure species.