Kammii has a very similar look to Plagiotropica, but it produces a red bloom spike with purple flowers. Also has nice lavender highlights when grown in high light.
"Sidewinder" B X S (15% Off 25 Pack) $1.70/ea
Plantaflor USA, Inc.
"Sidewinder" Baileyi X Streptophylla
Aeranthos Amethyst X (3")