The cultivars that define the cup
Oolong is the most cultivar rich category in Chinese tea, and the names are worth knowing.
Anxi alone has 4 famous ones: Tieguanyin（铁观音）, Huangjingui（黄金桂）, Benshan（本山）and Maoxie（毛蟹）.
Tieguanyin carries the orchid note, and Huangjingui is the earliest picking with a sharper aroma.
Benshan and Maoxie are planted alongside them, and both are cheaper and plainer.
Wuyi adds Rougui（肉桂）and Shuixian（水仙）, and those two now dominate the cliffs.
Rougui is cinnamon and spice, and Shuixian is heavier and more floral.
Dahongpao（大红袍）exists today as clones taken from the original mother trees on Jiulongke.
Fenghuang Dancong（凤凰单丛）splits into aroma type clones named for what they smell like.
Milanxiang（蜜兰香）is honey and orchid, and Zhilanxiang（芝兰香）is the sharper iris type.
The count of named Dancong aromas runs into the dozens, and new ones keep getting registered.
That is why a cultivar list is the fastest way into this category.
Cultivar choice is the single biggest driver of what an oolong tastes like.
Bigger than region, bigger than roast, and far bigger than price.
Why breeders select
A cultivar is selected for the field first and for the cup second, whatever the label implies.
Aroma is the one trait breeders here will pay for, unlike in most other categories.
Yield decides whether a grower plants it, and disease resistance decides whether it survives.
Aroma decides whether anyone will pay a premium for the result.
Tieguanyin was selected for its orchid note and for a leaf that rolls without breaking.
A brittle leaf cannot be rolled into a ball, and the ball is the entire style.
Rougui was selected for spice and for tolerating a heavy charcoal roast.
A delicate cultivar burns under that heat, and the result is ash rather than roast.
One cliff can carry several cultivars that taste nothing alike.
Wuyi grows Rougui and Shuixian within a few metres of each other.
Knowing which one you have tells you more than knowing the mountain does.
Cultivar sets the ceiling, and the maker decides whether the tea reaches it.
Read them in that order and the pricing starts to make sense.
Clones versus landraces
Oolong is where the clone versus landrace argument is loudest, because both are visible.
Most of Anxi and Wuyi is planted with clones now, and the fields are uniform.
Every plant ripens together, and one picking and one process setting cover the lot.
That is what made the category scalable, and it is what made it consistent.
Dancong is the opposite, since the old bushes are individuals with individual names.
Each one is effectively a landrace of one, and the variation is the entire selling point.
A single old bush produces a tea that nobody else can reproduce.
Neither approach is automatically better, and the trade is uniformity against character.
Clones trade genetic diversity away for consistency, and the loss is invisible until it is not.
A field of identical plants is efficient and fragile at the same time.
Old bush gardens are inefficient and have survived for centuries.
The two systems sit a few valleys apart, and both are thriving.
Both facts are true, and the market pays for both.
Reading the label
A cultivar name on an oolong is the most useful single fact on the label.
‘Rougui’ tells you spice and roast tolerance, and ‘Shuixian’ tells you floral weight.
It tells you what to expect before you open the bag, which almost nothing else on a label does.
It does not tell you the roast level, the elevation or whether the maker knew the craft.
Those are separate facts, and a label with two of them is unusually honest.
The absence of a cultivar name usually means a blended base.
In Wuyi that is normal practice, since a finished rock tea is often blended by design.
It becomes a problem only when the label implies a single cultivar it does not contain.
A blended rock tea is a legitimate product, and a labelled single cultivar should be one.
Buy 25 g of 2 cultivars from one region and brew them at 95 °C with 5 g in 100 ml.
Rougui against Shuixian is the clearest lesson available in this category.
Once you can taste them apart, every Wuyi label gets easier to read.
Two cultivars, one session, and the region opens up.