<entry id="2098404" stat="A" corpus="jmdict" type="jmdict">
<ent_corp type="jmdict">jmdict</ent_corp>
<ent_seq>2079430</ent_seq>
<k_ele>
<keb>大葉</keb>
</k_ele>
<r_ele>
<reb>おおば</reb>
</r_ele>
<sense>
<pos>&n;</pos>
<pos>&adj-no;</pos>
<xref type="see" seq="1311720">紫蘇</xref>
<gloss>beefsteak plant</gloss>
<gloss>perilla</gloss>
</sense>
<sense>
<pos>&n;</pos>
<pos>&adj-no;</pos>
<gloss>megaphylls</gloss>
<gloss g_type="lit">large leaf</gloss>
</sense>
<info>
<audit time="2006-03-07 00:00:00" stat="A">
<upd_detl>Entry created</upd_detl>
</audit>
<audit time="2021-03-28 11:41:54" stat="A" unap="true">
<upd_name>MarcusAseth</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>missing definition for "大きな葉。"</upd_detl>
<upd_refs>https://kotobank.jp/word/%E5%A4%A7%E8%91%89-450531</upd_refs>
<upd_diff>@@ -9,0 +10,5 @@
+&lt;sense&gt;
+&lt;pos&gt;&amp;n;&lt;/pos&gt;
+&lt;pos&gt;&amp;adj-no;&lt;/pos&gt;
+&lt;gloss&gt;large leaf&lt;/gloss&gt;
+&lt;/sense&gt;</upd_diff>
</audit>
<audit time="2021-03-29 03:14:48" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>Funny that no other reference has it. WWW hits and images are all for perilla leaves.</upd_detl>
<upd_refs>大辞泉 seems to be alone with that sense.</upd_refs>
<upd_diff>@@ -13 +13,3 @@
-&lt;gloss&gt;large leaf&lt;/gloss&gt;
+&lt;xref type="see" seq="1311720"&gt;紫蘇&lt;/xref&gt;
+&lt;gloss&gt;beefsteak plant&lt;/gloss&gt;
+&lt;gloss&gt;perilla&lt;/gloss&gt;
@@ -18,3 +20 @@
-&lt;xref type="see" seq="1311720"&gt;紫蘇&lt;/xref&gt;
-&lt;gloss&gt;beefsteak plant&lt;/gloss&gt;
-&lt;gloss&gt;perilla&lt;/gloss&gt;
+&lt;gloss g_type="lit"&gt;large leaf&lt;/gloss&gt;</upd_diff>
</audit>
<audit time="2021-03-29 05:59:54" stat="A" unap="true">
<upd_name>MarcusAseth</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>I looked some more into it, 小葉 has "small leaf" meaning on daijisen/daijiten/daijirin, so that should also be relevant I think (although currently missing on JMDict)
Also in the first reference link above from wikipedia they are used with 系: 日本では小葉系と大葉系と中葉系（大実の成る系統はアッスーと名付けられている）に分類され流通している。

From the second link: 一般的には葉と言えば「大葉（en:megaphylls）」であり and 大葉（いわゆる「葉」）の葉脈の枝分かれパターンは、2分岐が網目状になったものが起源である可能性がある。
So it seems to be more about the fact that 大葉(Megaphylls) have a complex network of veins, as it explains in the third link
So the j-j dictionary entries might be not up to date on this</upd_detl>
<upd_refs>https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A3%E3%83%9C%E3%83%81%E3%82%AB%E3%83%90
https://ja.wikipedia.org/wiki/%E6%A4%8D%E7%89%A9%E3%81%AE%E9%80%B2%E5%8C%96
https://en.wikipedia.org/wiki/Microphylls_and_megaphylls</upd_refs>
<upd_diff>@@ -19,0 +20 @@
+&lt;gloss&gt;megaphylls&lt;/gloss&gt;</upd_diff>
</audit>
<audit time="2021-03-31 04:02:09" stat="A">
<upd_uid>jwb</upd_uid>
<upd_name>Jim Breen</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>OK</upd_detl>
</audit>
</info>
</entry>