Clover Eyes

In anime, some characters's pupils are shaped flowers with four petals, or like crosses with round corners. There doesn't seem to be any well-known term for them, but some people say the shape of these "eyes are clovers," me ga kuroobaa 目がクローバー, so they are clover eyes.

Character: Nia Teppelin ニア・テッペリン
Anime: Tengen Toppa Gurren Lagann, 天元突破グレンラガン (Episode 10)

• Examples
• Disambiguation
• References

Examples

For reference, some anime characters with clover-shaped pupils.

Character: Hibana 火華
Anime: Enen no Shouboutai 炎炎ノ消防隊 (Episode 6)

Character: Hibari 雲雀
Anime: Senran Kagura 閃乱カグラ (Episode 1)

Character: Tachibana Sylphinford 橘・シルフィンフォード
Anime: Himouto! Umaru-chan 干物妹！うまるちゃん (Episode 1)

Disambiguation

For the sake of reference, this is what a clover looks like:

Anime: Hourou Musuko 放浪息子 (Episode 1)

As you can see, four petals.

Naturally, "clover eyes" must have have four petals, too, and look like a cross. If they were to have five petals, then "the eyes are flowers," me ga hana 目が花, or something like that.

Fortunately, most of the time it's just four petals.

For the sake of reference, these are similar to clover eyes, but aren't clover eyes:

Character: Mizunokouji Asuka 水乃小路飛鳥
Anime: Urusei Yatsura うる星やつら (Episode 156)

• me ga shiitake 目がしいたけ
  The eyes are shiitake [mushrooms].

Character: Jibril ジブリール
Anime: No Game No Life, ノーゲーム・ノーライフ (Episode 6)

• me ga juuji
  目が十字
  The eyes are "ten-shaped." (juu 十 means "ten.")
  The eyes are cross-shaped.

Character: Fiel Nirvalen フィール・ニルヴァレン
Anime: No Game No Life, ノーゲーム・ノーライフ (Episode 8)

• me ga yotsu-bishi
  目が四菱
  The eyes are four rhombi
  • A rhombus is a equilateral quadrilateral, a four-sided shape whose sides all have the same length.
  • The word hishi 菱 means "water caltrop," but since they're diamond-shaped, it also refers to the diamond shapes found in designs. It becomes bishi as suffix due to rendaku 連濁.
  • By the way, the brand Mitsubishi 三菱 has a logo with "three rhombi" in it.

Character: Think Nirvalen シンク・ニルヴァレン
Anime: No Game No Life Zero, ノーゲーム・ノーライフ ゼロ (Movie)

• me ga mutsu-bishi
  目が六菱
  The eyes are six rhombi.
  • Pretty much shaped liked a "snowflake," seppen 雪片.

Character: Beatrice ベアトリス
Anime: Re:Zero kara Hajimeru Isekai Seikatsu Ｒｅ：ゼロから始める異世界生活 (Episode 4)

• me ga chou
  目が蝶
  The eyes are butterflies.

References

• 目が特徴的な子っていいよね！　メモメモ - wai-se.hatenablog.com, accessed 2020-02-07.