Allium negianum A general habitat B bulb covered with reticulate fiber on bulbs of A. przewalskianum (orange-red) and A. negianum (red-brown) C inflorescence and spathe with a very long beak, persistent D inflorescence E capsule with mature seeds F line-illustrations of transverse section of leaf showing hollow channel G longitudinal section of flower with stamen with two sharp teeth H ovary I seed with prominent beak (C–I magnification × 30–40).