Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.

The term most commonly refers to higher plants, but epiphytic bacteria, fungi (epiphytic fungi), algae, lichens, mosses, and ferns exist as well.
The term is used for higher plants. There are also terms for epiphytic bacteria, fungi, algae, lichens, mosses.

On September 17, 2004, Whedon announced on the movie's official website that shooting had been completed.
Whedon announced on September 17, 2004 shooting had been completed.

On October 16, 1990, the UN General Assembly decided to grant the ICRC observer status for its assembly sessions and sub-committee meetings, the first observer status given to a private organization.

On October 16, 1990, the UN General Assembly granted the ICRC observer status for its assembly sessions and sub-committee meetings. It was the first observer status given to a private organization.

