Herbal
Herbal tisanes are infusions of plants other than Camellia sinensis. They are not tea in the botanical sense, and the distinction matters when someone asks what they are drinking. The category spans an enormous range: the tart hibiscus, the sedating chamomile, the warming ginger, the cooling peppermint, the cereal roast of barley tea, and the adaptogenic profile of rooibos are all technically in the same group and share nothing but the absence of the tea plant. What unites them for logging purposes is the brewing vessel and the ritual, not the botanical family or flavor profile. Caffeine-free unless a blend includes true tea.

Families
Flowers
Flower tisanes are the most globally common herbal infusions and also the most diverse in flavor profile. Chamomile is soft, apple-adjacent, and mildly sedating. Hibiscus is tart, deeply colored, and bracing. Chrysanthemum is delicate and cooling, a Chinese medicine staple drunk plain or alongside puerh. Lavender is intensely perfumed and divisive. Elderflower and linden are lighter and more nuanced. The only thing these share is a flower origin; brewing temperature and steep time matter differently for each.
Chamomile, Hibiscus, Chrysanthemum …
Leaves & herbs
Leaf and herb infusions span the widest flavor range in the herbal category: peppermint is cooling and sharp; spearmint is gentler; lemongrass is bright and citrus-forward; tulsi (holy basil) carries a warm clove-like character; nettle is mineral and green; jiaogulan is bitter and tonic. These are the teas most commonly grown at home or blended from kitchen ingredients, and the quality range from fresh-dried home-grown to supermarket sachets is enormous.
Peppermint, Lemongrass, Lemon Verbena …
Roots & spice
Root and spice infusions are the most intense in the herbal category: ginger is warming and pungent; licorice root has a deep natural sweetness; turmeric is earthy and slightly bitter; ginseng is mild and slightly bitter with a long-standing functional reputation. These are frequently blended together or with true tea for chai-style preparations. They typically require longer steeping times or simmering to fully extract, and they are the herbal family most likely to influence a drink's texture or body alongside its flavor.
Ginger, Licorice Root, Ginseng …
Fruits & seeds
Fruit and seed infusions range from the bright tartness of rosehip to the roasted cereal warmth of barley tea (mugicha) and buckwheat tea (sobacha). Barley and buckwheat teas are popular throughout Japan and Korea, particularly as cold summer drinks. Rosehip is often blended with hibiscus for a tart, brightly colored infusion. These are generally the least bitter and most approachable of the herbal families, and the roasted-grain styles have no real equivalent elsewhere in the herbal category.
Rosehip, Fennel, Barley Tea (Mugicha) …
Bush teas & other
South African bush teas (both caffeine-free) and caffeinated botanicals from other regions (Yerba Mate) that do not fit the other herbal families. Rooibos and Honeybush are both from the Western Cape and both recognizably different: Rooibos has a vanilla-earth sweetness and good oxidized color; Honeybush is sweeter and more honey-like. Yerba Mate is South American, caffeinated, and has its own dedicated ritual, equipment, and drinker culture that overlaps only loosely with the tea world. These are grouped here by convention rather than any shared processing or flavor logic.
Rooibos, Honeybush, Yerba Mate