Get-ChildItem | tree gives me a wierdly formatted tree

The following input:

PS STG:\> Get-ChildItem | tree

Gives me

Folder PATH listing for volume Data
Volume serial number is 6576-C540
D:.
ÃÄÄÄAPK
ÃÄÄÄAssets
³   ÃÄÄÄAnimations
³   ³   ÃÄÄÄCharacters
³   ³   ³   ÀÄÄÄinhabitant
³   ³   ÃÄÄÄEnvironment
³   ³   ÀÄÄÄProps
³   ÃÄÄÄMaterials
³   ³   ÃÄÄÄCharacters
³   ³   ³   ÀÄÄÄinhabitant
³   ³   ÃÄÄÄEnvironment
³   ³   ÃÄÄÄParticles
³   ³   ³   ÀÄÄÄasteroidParticle
³   ³   ÀÄÄÄProps
³   ÃÄÄÄMeshes
³   ³   ÃÄÄÄCharacters
³   ³   ³   ÀÄÄÄinhabitant
³   ³   ÃÄÄÄEnvironment
³   ³   ÀÄÄÄProps

...etc.

When I was expecting something formatted more like:

├───APK
├───Assets
    └───Animations
    |   └───Characters
    |   |   └───inhabitant
    |   ├───Environment
    |   └───Props
    └───Materials
    |   └───Characters
    |   |   └───inhabitant
    |   ├───Environment
    |   └───Particles
    |   |   └───asteroidParticle
    |   └───Props
    └───Meshes
        └───Characters
        |   └───inhabitant
        ├───Environment
        └───Props

What am I doing / understanding wrong?

This is the value of $OutputEncoding:

IsSingleByte      : True
BodyName          : iso-8859-1
EncodingName      : Western European (Windows)
HeaderName        : Windows-1252
WebName           : Windows-1252
WindowsCodePage   : 1252
IsBrowserDisplay  : True
IsBrowserSave     : True
IsMailNewsDisplay : True
IsMailNewsSave    : True
EncoderFallback   : System.Text.InternalEncoderBestFitFallback
DecoderFallback   : System.Text.InternalDecoderBestFitFallback
IsReadOnly        : True
CodePage          : 1252`

The default Command Prompt console encoding is codepage 437 and tree.com uses extended characters by default. PowerShell ISE's default console output codepage is 1252. Here are some ways to get around this:

1. Use tree.com /A to force tree to use ASCII instead of extended characters.
2. Change the console output encoding in PowerShell to codepage 437 with chcp 437; [Console]::OutputEncoding = [System.Text.Encoding]::GetEncoding(437).
3. Convert to bytes and re-encode the output from tree.com | %{ [System.Text.Encoding]::GetEncoding('IBM437').GetString([Console]::OutputEncoding.GetBytes($_)) }

Note that option 2 may have impacts on how some other things display.