# ชั้นซิลอปซิดา
## Noun (N)
### Sense: whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs
- Psilopsida
- class Psilopsida
- Psilotatae
- class Psilotatae