Second spike on phal: petals/sepal white on both, but lip deep purple on one, white with tiny purple spots + yellow edge on other. Single plant. Mutation? Purple gene off in some cells? Yellow unexplained.
Pigments are water-soluble, moved via veins. Anything disrupting production or delivery → different concentration/distribution in flowers. Flowers on same plant often differ in pigment. Your case—two spikes with distinct color—is unusual. Note it; check consistency next bloom. If keiki appears, see if it follows parent spike or differs.
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