Classification and Origin
Classification origin: Name and what the plant is
香茅 (xiāngmáo, literally “aromatic grass, fragrant herb”) is the commercial and culinary name for the leaves and lower part of the stem of grasses of the genus Cymbopogon, primarily Cymbopogon citratus, known in the European tradition as lemongrass. The synonymous 柠檬草 (níngméng cǎo, “lemon grass”) is also encountered, and in a kitchen context — 香茅草 (xiāngmáo cǎo). It is a perennial grass forming a dense clump of narrow, stiff leaves with a sharp edge; in dried form it is sold either as leaf (cut) or as trimmed stem “stalks.”
Key point for the encyclopedia: Cymbopogon has no relation to Camellia sinensis. From this follow all further consequences — from classification to brewing method.
History and Culture
History culture: Why it is not 花茶: the logic of 再加工茶
花茶 in the Chinese system is part of the seventh, “re-processed” class 再加工茶 (zài jiāgōng chá), which stands outside the six basic classes (green, white, yellow, oolong, red, black). The construction of 花茶 is always two-part:
1. **茶坯 (chápī)** — a tea base, most often 烘青绿茶 (hōngqīng lǜchá), a baked-dry green tea, more rarely a red, oolong, or white base; 2. a flower and the operation 窨 — layering the live flower with the tea base (repeatedly in premium forms) so that the leaf absorbs volatile compounds, after which the flower mass is removed.
In the canonical list of 花茶 types — 茉莉花茶 (jasmine, the absolute dominant), 桂花茶 (osmanthus), 玫瑰花茶 (rose), 白兰花茶 (magnolia), 珠兰花茶 (chloranthus), 玳玳花茶 (bitter orange), 柚子花茶 (pomelo flower), plus premium jasmine forms (龙珠, 银针, 大白毫) and decorative 工艺花茶 — lemongrass is absent and cannot be present. The reason is not rarity but two structural differences:
- 香茅 as a product has no tea base: it is an independent dry raw material, not a scented tea leaf;
- its aroma is introduced not by 窨 but by direct mixing of dry cut material, that is, mechanical blending.
The closest analogy within the list is the borderline position of 菊花茶 and 菊普: chrysanthemum itself is not a tea leaf, which is why it is marked with a caution, while 菊普 is defined as a blend with 普洱熟 (shu pu-erh). 香茅 stands on the same border, only one step further from tea: chrysanthemum is at least a flower traditionally inscribed
Botany and Raw Material
Botany material: Terroir and raw material
香茅 is a plant of the tropics and humid subtropics. In China it is grown and harvested in the south: in Yunnan, on Hainan, in Guangdong and Guangxi. It is a plantation-garden type crop, not a mountain tea garden: cutting takes place several times per season, and quality depends on the age of the leaf, the speed of drying, and whether coarse lower parts of the clump ended up in the cut.
Practical markers of raw material:
- color — light gray-green to straw; a brown, “hay-like” tone indicates overheating or prolonged storage;
- cut — even, without dust and without whitish tough base trimmings;
- dry aroma — clean lemon-citrus with a greenish “herbaceous” underpinning; raw material that smells only of “dry hay” has faded.
The volatile profile of lemongrass is built on citral (a mixture of geranial and neral) accompanied by geraniol and citronellal; it is citral that gives the recognizable resemblance to lemon zest without acidity. The compound is volatile and light-sensitive, which is why 香茅 loses its character faster than tea leaf: airtight packaging, darkness, and small pack sizes are mandatory.
Terroir
Terroir: Taste, infusion, brewing
The infusion of pure 香茅 is pale yellow, almost lemon-toned, transparent. The aroma carries lemon zest, stem freshness, and sometimes a slight “ginger-soapy” note in overdried raw material. The taste is thin, slightly sweet at the start, with a dry herbaceous finish; there is no bitterness of tea catechins, no astringency, and no returning sweetness in the throat (回甘, huígān) — by definition, since there is no tea leaf.
Brewing benchmarks (as for herbal raw material, not as for tea):
| format | raw material | water | time | |---|---|---|---| | mono-infusion, mug | 2–3 g per 250 ml | 95–100 °C | 3–5 min, 1–2 steeps | | gaiwan, short steeps | 3 g per 120 ml | 100 °C | 30–60 s, up to 3 times | | as an additive to tea | 0.2–0.5 g per 5 g of tea | according to the base tea’s parameters | according to the base tea’s parameters |
The most important rule of blending: 香茅 is aggressive in aroma, and a noticeable share of it erases the base tea. For this reason, in market practice it is more often paired with dense, “dark” bases that can take the impact — above all with 普洱熟, following the same logic by which 菊普 is assembled; more rarely with red tea. Lemongrass is not paired with delicate 花茶 profiles, especially jasmine: two citrus-floral tops conflict, and the characteristic “fresh liveliness” of jasmine (鲜灵) is lost.
Production
Production: Cultural context
The culinary role of 香茅 in China is older and weightier than any “tea” role. In the cuisine of the Dai people (傣族) in southern Yunnan, lemongrass is a basic aromatic herb: 香茅草烤鱼, fish wrapped in stems and roasted over charcoal, is one of the most famous local dishes. The stem is used as an aromatic clamp, a frame, and simultaneously a seasoning; the leaf is used for decoctions and marinades. From this stems the “domestic” habit of brewing dried cut material as an everyday hot infusion in a hot climate — a household practice outside the tea canon.
In tea commerce 香茅 appears in two ways: as an ingredient in herbal blends for local sale and as an element of export blends. In both cases it is a market category, not a standard one: it has no historical school of 窨, no classical varietal gradations, and no place of its own in the 花茶 type list.
Organoleptic Profile
Organoleptic: How to distinguish and what it is confused with
香茅 (lemongrass, Cymbopogon) — cut narrow stiff leaves with longitudinal veining, sometimes pieces of dense pale stem; aroma of citral, “lemon plus stem.”
Common confusions:
- 柠檬马鞭草 / lemon verbena (Aloysia) — leaf is broad, lanceolate, rough, aroma is sweeter and more “candy-lemon”; it is a different plant and a different raw material;
- 柠檬香蜂草 / lemon balm — rounded leaf with a serrated edge, minty-lemon tone;
- dried citrus peel (including 陈皮) — a completely different, oily-bitter citrus, and in appearance it is fruit peel, not herb;
- “lemongrass green tea” — if the packet shows a tea base plus herbal cut material, what you have is a mechanical mixture, not 花茶: in 花茶 the scenting is done by 窨, and extraneous plant mass typically does not remain in the finished product.
The control test is simple. Pour boiling water over the raw material and assess the body of the infusion: 香茅 gives aromatic but “empty” water in terms of structure, without tea astringency. If the cup has tea density and an astringent frame, a 茶坯 is at work, and the product should be described through its base (green, red, shu pu-erh), with lemongrass called what it actually is: a dry aromatic additive.
Chemical Composition
Chemistry: Summary for the catalog
In the “flowers and dry raw material” section, 香茅 occupies the honest place of an herbal ingredient: it does not belong to the six basic classes, does not fall under 花茶 within 再加工茶, and functions as a blending accent or a standalone infusion. Its strength is an instantly recognizable citral top; its weakness is rapid loss of aroma and a tendency to overpower any delicate tea base. Both characteristics are worth keeping in mind both when purchasing and when composing blends.
