Identifying Mystery Lily/Rhizome: Canna vs. True Lily

Zone 5 gardener bought "canna" last year, dug rhizome, stored. Regrowing but unsure of identity. Rhizome: big white blob with tiny roots.

Canna rhizome: Dark brown skin, white interior, long stem-like, stores carbs. Sprouts in basement by April/May.
True lily bulb: Scaly or smooth, onion-like brown/tan skin, white inside.

Describe last year's plant: leaves, height, flower color, bloom period.

Rhizome vs. bulb appearance at planting time tells the story.

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