Where does “Euphorbia maculata” come from?

Euphorbia maculata (Translingual) comes from Translingual Euphorbia, from Latin Euphorbus, from Ancient Greek εὔφορβος, from Ancient Greek εὐ-, from Ancient Greek πίων, from Proto-Indo-European peyH- — fat, milk.

Euphorbia maculata (Translingual): species, a small, prostrate annual plant native to North America.}}

Definitions

species, a small, prostrate annual plant native to North America.}}

Ancestry of “Euphorbia maculata”, step by step

Euphorbia maculata traces back through two separate lines of ancestry.

via Translingual Euphorbia

Step	Language	Word	Meaning
1	Translingual	Euphorbia	genus
2	Latin	Euphorbus	A masculine given name
3	Ancient Greek	εὔφορβος	well fed
4	Ancient Greek	εὐ-	good, well
5	Ancient Greek	πίων	fat, rich; wealthy; abounding, fertile
6	Proto-Indo-European	peyH-	fat, milk

via Latin maculātus

Step	Language	Word	Meaning
1	Latin	maculātus	stained, spotted, having been stained
2	Latin	maculō	to stain, make spotted
3	Latin	Macula	—
4	Proto-Indo-European	smh₁-tleh₂	—
5	Proto-Indo-European	smeh₁-	smear, rub

Every word from Proto-Indo-European peyH- →