Simplify the following text for a Grade 12 native English-speaking person.
Original: Later the name was further extended to other related species , including Phoradendron serotinum ( the Eastern Mistletoe of eastern North America , also Santalaceae ) .
Simplified: Later the name was fgiven to other related species , including Phoradendron serotinum ( the Eastern Mistletoe of eastern North America , also Santalaceae ) .