Papalo is a pungent, leafy herb native to Central and South America, prized for its bold flavor in traditional Mexican cooking and valued in folk medicine for digestive support, blood pressure, and infections. It tastes like a stronger, more complex version of cilantro with notes of citrus, cucumber, and mint, and it packs a surprisingly dense nutritional profile for a garnish herb.
Nutritional Profile
Papalo stands out among leafy herbs for its mineral content. Per 100 grams of fresh leaves, it delivers roughly 440 to 690 mg of calcium (depending on whether it’s wild or cultivated), 130 to 186 mg of magnesium, and about 480 to 515 mg of potassium. Iron is its most notable microelement at around 1.7 to 1.8 mg per 100 grams. It also provides phosphorus, zinc, and copper in smaller amounts, while sodium stays very low at around 7 to 8 mg.
Beyond minerals, papalo is rich in plant-based antioxidants. Lab analysis published in the journal Plants found total antioxidant activity of roughly 4,400 to 4,650 micromoles per 100 grams of fresh weight, along with substantial phenolic compounds. Those phenolics are the same class of protective molecules found in berries, green tea, and dark chocolate. The calcium content alone is remarkable: 100 grams of papalo provides more calcium than the same amount of kale or spinach.
Traditional Medicinal Uses
In Mexican and South American folk medicine, papalo leaves have long been used to treat upset stomach, high blood pressure, and infections. The herb is sometimes brewed as a tea or taken as a “cleanser,” though most of these uses come from generations of traditional practice rather than large clinical trials.
There is some laboratory evidence backing the anti-inflammatory reputation. A study in BMC Complementary and Alternative Medicine tested papalo leaf extract on burn wounds in rats and found it significantly reduced the number of immune cells associated with inflammation (granulocytes) compared to untreated wounds. The extract also boosted early production of a growth factor involved in tissue repair. These findings suggest a real biological basis for the plant’s traditional wound-healing and anti-inflammatory uses, though human studies remain limited.
How Papalo Is Used in Cooking
Papalo is almost always eaten raw. Heat dulls its complex flavor, so it’s added as a finishing herb, much like fresh cilantro or basil. Its most iconic role is on the cemita, a sesame-seed sandwich from Puebla, Mexico, where sprigs of papalo are layered alongside chipotle adobo, avocado, meat, and Oaxacan cheese. The herb’s sharp, slightly medicinal edge cuts through the richness of the sandwich and adds a layer of flavor that cilantro can’t replicate.
Beyond cemitas, papalo shows up in simpler, everyday contexts. In Bolivia, where it goes by quillquiña, it’s chopped into llajwa, a fresh salsa made with tomatoes and locoto peppers. In rural Mexico, it has historically been stirred into beans or tucked into quesadillas to add variety and flavor to simple meals. Some people also steep the leaves into a tea.
The herb goes by many names across Latin America: quillquiña (also spelled quirquiña or quilquiña) in Bolivia, pápaloquelite in parts of Mexico, Bolivian coriander, summer cilantro, yerba porosa, and killi, among others. If you see any of these on a menu or at a market, it’s the same plant.
Flavor and How to Handle It
Papalo’s flavor is polarizing. It hits harder than cilantro, with a peppery, almost soapy intensity that some people love and others find overwhelming. The key is leaf age: younger leaves are sweeter and more mild, while older, larger leaves carry a much stronger taste. If you’re trying papalo for the first time, start with the small, tender leaves near the top of the stem.
Fresh papalo doesn’t have a long shelf life. Treat it like fresh basil: store stems in a glass of water at room temperature or loosely wrapped in a damp paper towel in the refrigerator. Use it within a few days for the best flavor. If you’re growing it yourself, regularly pinching off leaves and stems encourages the plant to keep producing new, milder growth rather than bolting to seed.
Growing Papalo at Home
One of papalo’s practical advantages is that it thrives in hot weather, exactly when cilantro bolts and turns bitter. It’s a warm-season annual that grows easily from seed, tolerates heat and poor soil, and doesn’t need much water once established. In tropical and subtropical climates, it essentially grows as a weed. For gardeners in hot regions who struggle to keep cilantro going through summer, papalo fills the same culinary niche with almost no effort. Harvesting regularly by cutting what you need for meals keeps the plant bushy and productive throughout the growing season.