a leaf is green
Plants with an alternate leaf arrangement typically have a single leaf at each node, but if you observe two leaves at a node, it's likely a case of a "distichous" arrangement, where leaves are arranged in two vertical ranks. However, true alternation means that leaves spiral around the stem, with each node bearing one leaf. Examples of plants with such arrangements include certain species of Dracaena and some types of Eucalyptus. For clarity, if you're seeing two leaves at a node, consider looking into a "whorled" arrangement or a variation of leaf development.
Spirogyra is a type of green algae, named for the spiral arrangement of the chloroplasts. The arrangement of the chloroplasts are helical or spiral.
alternate
Two
whorled Being a member of the family Lamiaceae, basil leaf has opposite arrangement
Plants with an alternate leaf arrangement typically have a single leaf at each node, but if you observe two leaves at a node, it's likely a case of a "distichous" arrangement, where leaves are arranged in two vertical ranks. However, true alternation means that leaves spiral around the stem, with each node bearing one leaf. Examples of plants with such arrangements include certain species of Dracaena and some types of Eucalyptus. For clarity, if you're seeing two leaves at a node, consider looking into a "whorled" arrangement or a variation of leaf development.
Spirogyra is a type of green algae, named for the spiral arrangement of the chloroplasts. The arrangement of the chloroplasts are helical or spiral.
Opposite arrangement
The phyllotaxy of a lotus leaf is known as alternate spiral phyllotaxy. This means that the leaves are arranged in a spiral pattern along the stem, with each leaf emerging at a consistent angle from the previous one. The alternate arrangement allows each leaf to receive maximum sunlight and airflow, optimizing photosynthesis and transpiration processes. This phyllotactic pattern is common in many plant species and is an adaptation for efficient resource utilization.
alternate
Two
spiral arrangement of chloroplasts in these algae
Spiral
Ivy plants have alternate leaf arrangement, which means that leaves are arranged along the stem in an alternating pattern. Each leaf grows in a staggered formation rather than directly across from each other.
Bamboo exhibits a type of phyllotaxy known as alternate or spiral phyllotaxy. In this arrangement, leaves are positioned at different heights around the stem, typically alternating in a spiral pattern. This configuration allows for maximum light exposure and reduces shading of lower leaves. The specific angle of leaf arrangement can vary among different bamboo species, contributing to their unique growth forms.
Leaf veins.
single