You sent a photo (didn't transmit) of an orchid with a new shoot from the main trunk, with several "fingers" at the base. You ask if they're roots.
Without the photo or plant ID, it's guesswork. The growth could be a new shoot (keiki or basal growth) or roots (typically grey/white/brown with green tips).
With that info, a proper ID and advice can be given.
Reddish Growth on Storm-Damaged Oak Branches: What Is It?
Identifying Fungal Growth on a Tree Trunk
Mushroom Growth in Aloe Pot: Harmless Fungus Identification and Removal
Managing Overgrown Phalaenopsis: Top-Cutting vs. Deep Repotting
Top Keiki on Dying Spike: Rescue Before It's Lost
Separating a Basal Keiki from a Mature Phalaenopsis
Keiki on the Flower Spike: How to Grow a Baby Phalaenopsis
Dog-Damaged Dendrobium: Encouraging New Root Growth
Phalaenopsis Aerial Roots: Normal & Healthy
Keiki Alert! What to Do When Your Orchid Grows a Baby on Its Flower Spike
Venus Flytrap Flowering: Normal Growth or Cause for Concern?
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