双葉 (ふたば, futaba) Japanese meaning: seed leaves | Kotomora。
The morning glory's seed leaves have emerged from the soil.
While it's still at the cotyledon stage, make sure it doesn't run out of water.
Usage patterns
〈植物〉の双葉が出るfor a plant's seed leaves to sprout
A week after sowing the seeds, the cotyledons sprouted.
双葉のうちにwhile still in the earliest stage (of growth or development)
The company, though still in its infancy, held the potential to grow big.
双葉を摘むto pinch off the seed leaves (of a seedling)
She pinched off the seedling's cotyledons to encourage its growth.
Rare kanji form; mostly seen in literary or classical contexts.