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Tip of the stem of pond weed
![](/public/Final-Images/PL_Final685m_201-250/PL0235_685mElodeaLeafGrowthConeArrangement.jpg)
Legend:
1 apical meristem
2 leaves
English name: Pondweed
Scientific name: Elodea sp.
Familia: Hydrocharitaceae
Classis: Monocotyledonas
Phylum: Angiospermae
Regnum: Plantae
Upperview showing the spiral pattern of the onset of the leaves