Why is Buffalo grass called Buchloe???

It is a city in Germany.

http://en.m.wikipedia.org/wiki/Buchloe

Buchloe is also a genus of grass in the Poaceae family.

http://i.word.com/idictionary/buchlo%c3%ab

Main Entry: Bu·chloë
Pronunciation: \ˈbyükləˌwē\
Function: noun
Etymology: New Latin, from Greek bous head of cattle + chloē young grass; akin to Greek chloos light green — more at cow, glow
: a genus of perennial stoloniferous grasses (family Gramineae) having pistillate and staminate spikelets borne on the same or separate plants, the pistillate in sessile capitate clusters and the staminate in elongated one-sided racemes — see buffalo grass