Yes, if it is a common name of the flower, then it can sometimes be used with a capital letter. The genus of botanical plant/ flower names always has a capital letter, while the species is in lower case:
Eg.
Zea mays
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You can put flowers in a vase.
The letters 'nonlod' unscrambled spell the capital city London.
Amaryllis, buttercup, carnation, dandelion, hydrangea, narcissus and sunflower are flowers. They contain nine letters.
You have to connect MOST letters but not all of them
24 different names that can be spelled with from as little as 6 to as many as 18 letters