Fern is the name of the plant you got by cross polination and the word ROSACEAE is the name of the flower on it. You can have a basic ferns with 5 different kinds of flower - hence the name could be bluestar fern, citrus fern, jalapa fern etc. There are 4 different tier levels with each plant - the higher tiers need better soil and water to grow well. Tier 3, for example in ferns can have 8 different flowers on them.

Cross breeding plants sometimes make one of the same plants in the combo, depending which tier level the plants are on. You will find other combos that will also make a fern. These are the things you will find out as you go along.