Culantro is a small herb with long and serrated, lanceolate-shaped leaves, averaging 25 to 30 centimeters in length and 4 to 5 centimeters in diameter, arranged in a rosette pattern around a central stem. The leaves are glossy, dark green, broad, and flat with small, toothed edges, and each tooth may contain a tiny yellow spine. The spines are generally harmless, but older leaves may irritate the skin when harvested with bare hands. Seasonally, a flower stem extends above the leaves and is covered in spikes and flowers. Culantro has a strong, musky aroma reminiscent of the citrus, earthy, and herbal notes of cilantro. The scent is also sometimes likened to the smell of stinkbugs, a skunk-like, sweet, and grassy aroma. Culantro has a robust, vegetal, and herbaceous flavor with bitter, citrusy, tangy, and peppery nuances.