There are several ginger species with the dark center stripe:
Curcuma inodora (avg. 4' tall, red bracts), Curcuma zedoaria (3' maroon-red bracts), and Curcuma aeruginosa (4', pinky-purple bracts). Hybrids of these are also sold under various names and the inflorescence color may vary.
It's definetly a spring blooming curcuma. When it returns in the spring, if it blooms the inflorescence will come up from the soil before the foliage appears. Any spring bloomers that I've ever seen available in this country have red in mid rib. It does look a lot like sedoaria and they do stay up fairly long into the cooler months. All of mine are still up and still sending up new leaves.
If your Alpinia is getting any damage to the tips in the winter it won't bloom. All Alpinias (except galanga) bloom on second year growth.
If your curcuma does bloom in the summer it could be australasica. All spring bloomers have red in mid-rib, only a few summer bloomers do. One thing I've found intersying is, any of the summer bloomers we have that do have the red mid rib in the leaves have bloomed from the ground in the spring and then from the plant in the summer. I would say of any particular variety it's been about a 20% ratio of pots that do both. So far we have had only 3 different curcumas do both, all the rest have been either one or the other.