In trees, the phloem is the innermost layer of the bark, hence the name, derived from the Ancient Greek word φλοιός (phloiós), meaning "bark". [3][4] The term was introduced by Carl Nägeli in 1858. [5][6] …

phloem, plant vascular tissue that conducts foods made in the leaves during photosynthesis to all other parts of the plant. Phloem is composed of various specialized cells called sieve elements, phloem …

Jul 11, 2023 · Phloem transports organic nutrients, particularly sugars synthesized during photosynthesis, from the leaves to all other cells of the plant, including the roots.

Jul 23, 2025 · Definition of Phloem: Phloem is a type of vascular tissue responsible for transporting organic materials produced during photosynthesis, called photosynthates, from the leaves to other …

Jul 19, 2025 · Phloem serves as a conduit for transporting organic compounds from source tissues (usually leaves where photosynthesis occurs) to sink tissues (areas requiring or storing nutrients …

Aug 23, 2025 · Phloem is a living vascular tissue found in plants, alongside xylem, forming a comprehensive transport system. This tissue is composed of several distinct cell types that work …

This page explains that phloem transports organic substances in plants, aided by companion cells, with rates up to 110 μm per second. Girdling removes phloem, starving roots.