Lemon verbena and its long fragrant leaf
Lemon verbena's long leaves carry a distinct citrus perfume with a herbal and sometimes floral background.

The long leaf is a useful clue
Lemon verbena is recognisable in a loose herbal packet by its elongated leaves, especially when they have been left largely whole. That shape distinguishes it visually from the broader, textured leaf of lemon balm. Both can smell citrus-like, but they are different ingredients. Once cut finely, the visual clue becomes less reliable, which is another reason to keep the ingredient name attached to the material rather than relying on appearance alone. A mostly whole dried leaf makes its length easier to recognise than finely cut fragments.
Citrus without a fruit slice
The aroma can be distinctly lemony, sometimes with a floral softness behind it. A plain verbena infusion does not require lemon peel or juice to achieve that impression. It is worth separating this fragrance from sourness: the nose may suggest citrus while the taste remains gently herbal. Someone expecting a diluted lemonade will miss the leaf's quieter texture. A clearer comparison is a scented herb whose brightness comes primarily through aroma rather than a large acid sensation.
Its role in a mixture
Verbena can provide an obvious upper note in a blend of otherwise soft herbs. Mint introduces a different freshness, and fruit pieces can alter body or acidity. These ingredients do not all contribute the same thing merely because a packet calls the result refreshing. Notice which impression appears first and which remains at the end. If the citrus scent is strong but the middle seems empty, the mixture may need a better balance rather than an even louder fragrance.
Keep the identity specific
Names such as verbena, lemon verbena and similar regional terms are not always used with equal precision. A food product should identify the intended ingredient clearly; an unknown garden plant should not be selected just because its name sounds close. In the cup, simple descriptions work well: lifted lemon-like scent, a light herbal body and perhaps a faint floral finish. There is no need to attach a calming claim to make that profile worthwhile. The leaf's shape and its particular balance of citrus and herb already give it a recognisable place among infusions.