Your search for "Powder leaf" revealed the following:

Field (with powder) Autumn - 12mm height: Martin Uhlberg - Non-scale WB-PW125

Insect-eaten dead leaves set : Reality in scale : Fredericks material, non-scale l3302

Bamboo Forest Blue Fallen Leaves : Kigusa BUNKO Material Non-scale T8

Poplar branches and leaves (N) - fresh green : Miniatures Nature Materials Non-scale 913-11

Sponge material [Foliage cluster] Medium green : Woodland material Non-scale FC58

Matte type (meadow) 12mm high, early autumn with powder : Martin Uhlberg Non-scale WB-M054

Powdery material [Fruit] Fruit (red, orange) : Woodland material, non-scale T47

Matte type (wilderness), height 6mm, with autumn powder : Martin Uhlberg Non-scale WB-M030

1:48-1:87 Palm leaves #1 : Joe-Fix material 1:87-1:48 scale JF258

Peeled type (with wilderness powder) Autumn, height 6mm : Martin Uhlberg Non-scale WB-PW265

Poplar branches and leaves (N) - Autumn : Miniatures Nature Materials Non-scale 913-13

Mat Type (Pasture) Height 4.5mm Early Autumn with Powder : Martin Uhlberg Non-Scale WB-M008

Field (with powder) Autumn, height 4.5mm: Martin Uhlberg Non-scale WB-PW405

Peeled type (pasture with powder) Autumn, height 4.5mm : Martin Uhlberg Non-scale WB-PW245

Powdery material Kraft Sand (0.3 - 0.6mm) Ivory : Molin material Non-scale AF-25

Maple leaves (brown): Wako material 1:35 B-4

Powdery material Kraft Sand (0.1 - 0.3mm) Natural : Molin Material Non-scale AF-05

Sponge bright green coarse : Bush material non scale 7317

Peeled type (with wilderness powder) Early autumn Height 6mm : Martin Uhlberg Non-scale WB-PW264

Large leaf grass - Spring : Miniatures Nature Materials Non-scale 725-21