10-25 cm.
В езера, блата, мочури.
. 0 .. 900 m. VI-IX.
Journal of botany, British and foreign [B. Seemann], vol. 38: t. 408 (1900) [R. Morgan]
HD 92/43: 1150, 3150
RDB: 04C1
EUNIS: C1.22, C1.23, C1.24, C1.32, C1.33
PAL.CLASS.: 21, 22.41, 22.42, 22.431
