双葉

1. Origins, structure, and basic meaning

• Structure: Written 双葉 and read ふたば, it denotes the pair of seed leaves that first open when a plant sprouts, or the young sprout itself.
• Basic usage: It appears as tiny leaves unfolding from potting soil and as a shape drawn in an observation journal.

2. Common pitfalls and similar expressions

• Seed leaves rather than mature foliage
  • The focus is the first paired leaves at germination, not the later ordinary leaves of the plant.