Semantically or from the viewpoint of meaning, the word flora [ˈflɔːrə], as an uncoutable noun, means "the plants of a particular area, type of environment or period of time" and the word flower [ˈflaʊə(r)], as a countable noun, may mean "the coloured part of a plant from which the seed or fruit develops. Flowers usually grow at the end of a stem and last only a short time" (Oxford Learner's Dictionaries online). Below are examples of fantastics flora and fantastic flowers.
Orchids at Griya Persada Hotel, Kaliurang
A cool flower at the Hong Kong Institute of Education
Orchirds at Sokarno-Hatta Airport
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