50 Houseplants That Are Healthy to Keep at Home

2. Moth Orchids or Phalaenopsis orchids (Phals for short) usually have three to six leaves that alternate with a flower spike between them.

There are hundreds of varieties of orchids, though they are overwhelmingly either Phalaenops or Dendrobium. Remember how we mentioned Dendrobium Phalaenopsis are hybrids? Moth Orchids are the other half of that hybrid. These orchids prefer to be under-watered than over-watered since their roots can rot quickly. They have rounder flowers and grow on a single stalk and oval-shaped leaves. These plants effectively clear the air from xylene and toluene, so both form and function can be checked off with these beauties!