Why is it die Erbse?

Erbse ends in -e, and most nouns ending in -e are feminine: in a German dictionary, 79% of them take die.

All nouns ending in -e
Sense 1
die

Meaning

[1] Botany: Same of a legume

[1] Botanik: Same einer Hülsenfrucht

[2] Botany: The plant from the subfamily of the butterfly leaves, at which the eponymous sleeve fruit grows

[2] Botanik: die Pflanze aus der Unterfamilie der Schmetterlingsblütler, an der die gleichnamige Hülsenfrucht wächst

Examples

[1] Today there are peas and carrots

[1] Heute gibt's Erbsen und Karotten.

[2] I just planted peas

[2] Ich habe gerade Erbsen ausgepflanzt.

Declension

1 Singular Plural
Nominativ die Erbse die Erbsen
Genitiv der Erbse der Erbsen
Dativ der Erbse den Erbsen
Akkusativ die Erbse die Erbsen

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary