Sansevieria fischeri (old name S. singularis)
Plant & Photo: Robert Streul, USA

Robert Streul:
Sansevieria fischeri description based on N.E. Brown's 1911 description for S. singularis (old name).
Leaves solitary, erect, rigid, slightly rough, 1 1/2 â€" 8 feet long, 3/4â€"1 3/4 inches thick at base, cylindrical, slightly tapering upwards until near the apex, which shortly narrows to a stout acute whitish point, when young, with one concave channel 1 1/2â€"3 inches broad and 1 - 1 1/2 inches deep down the face and 4â€"6 longitudinal impressed lines on the sides and back, which deepen into furrows with age, dull greyishâ€" or bluish-green, often with a brownish tint or perhaps entirely brownish when mature, slightly subglaucous, rather brighter when young and then marked with numerous closely placed transverse pale green bands, which nearly or quite disappear with age.
Personal note: This is a must have plant for any Sans grower. My S. fischeri plants continue giving much joy by surprising me with each and every new leaf that is produced. Grown in strong light, the colors on the plant are spectacular with such a pronounced banding when the leaves are young. The parent plant in this photo is the standard S. fischeri but two out of the three new offshoots each have one leaf, of the two, that is showing a slight yellow-green margin on just one of the leaf margins. This yellow-green color changes to an off-white as the plant gets older. Since this photo was taken, the plants showing the colored margin have been removed from the parent and the hope is with each successive new growth, this margin will continue to show and perhaps increase in size or maybe even develop on both margins of the leaves. I have not had the pleasure of seeing any of my plants produce flowers but I have not given up and suspect that someday that will be another great surprise awaiting me.

(c) Photograph Copyright of The Amateurs' Digest and Robert Streul, USA