Granted my Pronunciation is all Jacked Up, but still

I tried to buy a calla lily and the woman didn't understand "Calla" because she thought, erroneously, that it was "Cala" which with Korean pronunciation sounds quite different -- "r" sound rather than an "l" (\ˈka-rə-\ rather than \ˈka-lə-\). A lot of people mistakenly spell Calla Lily with only one "l" in English and I thought maybe Koreans picked that mistake up, but after checking on naver.com (one of Korea's greatest resources) I found out that simply she was an idiot -- idiots are everywhere, and I commonly find people around here don't know much about their own jobs and fields. To make matters worse when I pointed to the flower in the shop, I touched it. She slapped my hand like you would a schoolchild and said "Don't touch!" and walked away. I was about to spend about 50,000 won buying a dozen of them. Instead I went to a nearby store and bought some. Check out some interesting information about the words below:

calla lily 윅셔너리
1. A common name for certain flowering plants in the genus Zantedeschia; not related to either the genus Calla or the true lilies (Liliaceae)
2. A flower of one of these plants.
calla [kǽlə] play
1. 칼라 ((아프리카 원산의 천남성(天南星)과의 원예 식물))
2. 칼라 ((유럽·북아메리카의 한랭한 늪에 사는 식물))
lily [|lɪli] play
백합