Pistachio basics

Types of Pistachios: Varieties & Differences

Every edible pistachio is one species, but its cultivars and regional varieties differ a lot in size, color, and flavor.

Written by Elena Ricci, Founder & lead writer Published Updated

Quick answer

All edible pistachios come from a single species, Pistacia vera. What people call 'types' are cultivars and regional varieties of that one tree: Kerman and Golden Hills in California, Fandoghi and Akbari in Iran, and prized European varieties like Bronte and Aegina. They differ mainly in size, shell split, color, and flavor, not in being different nuts.

Every edible pistachio in the world comes from a single species, Pistacia vera, so the many "types" you see named on bags and menus are cultivars and regional varieties of one tree, not different nuts. They diverge in size, shell split, kernel color and flavor rather than in botany, and once you know the main families the labels start to make sense.

Is there more than one kind of pistachio?

Botanically, no. The pistachio you eat is Pistacia vera, a small-to-medium deciduous tree in the family Anacardiaceae, the same family as the cashew and the mango. It is native to Iran and Central Asia, it is dioecious (male and female flowers grow on separate trees, so orchards need both), and it is famously long-lived, with sources citing productive trees of well over a century and lifespans reaching a few hundred years. Everything else is selection: growers have bred and saved cultivars suited to their climate and market.

The wider genus Pistacia does contain other species, among them P. atlantica, P. terebinthus, P. khinjuk, P. lentiscus, but these are used as rootstocks or for resin rather than eaten as nuts. P. terebinthus, for instance, is the traditional rootstock under Sicily's Bronte trees. If you want the bigger botanical picture, the what is a pistachio explainer and the pistachio plant page cover the tree itself.

What pistachio varieties grow in California?

California grows the overwhelming majority of US pistachios, around 99% of the crop, and its orchards run on a small set of University of California cultivars. The long-standing female (nut-bearing) standard is Kerman, which matures late, roughly from September into mid-October. In 2005 the University of California released two newer female cultivars to address Kerman's quirks. Golden Hills harvests about two to four weeks earlier than Kerman and tends to produce a higher share of split, edible nuts. Lost Hills gives larger nuts than Kerman, also with a higher split percentage, and shows less of the alternate-bearing swing that makes pistachio crops heavy one year and light the next.

Because the tree is dioecious and wind-pollinated, the pollen comes from separate male cultivars planted among the females. Peters is the traditional male pollinizer; Randy is a newer male that flowers roughly 10 to 15 days earlier than Peters, which lets it line up with the earlier bloom of Golden Hills and Lost Hills. None of these names usually reach the consumer. A US-grown bag is simply "pistachios", but they explain why American pistachios are so reliably plump and well-split.

What are the Iranian pistachio varieties?

Iran, the historic home of the pistachio, sells its commercial crop by four main varieties, graded by the ratio of length to diameter, where above about 1.5 counts as "long", below that as "round".

VarietyTrade nameCharacter
FandoghiRoundSmall, hazelnut-shaped, economical; the most widely available, roughly half of Iran's output
Kalleh GhouchiJumboLarge round premium type; reportedly being phased out due to sensitivity to water shortage and salinity
Ahmad AghaeiLongIncreasingly popular elongated export variety with strong demand abroad
AkbariSuper longLarge, elongated luxury variety with a high kernel-to-shell weight ratio

Trade and grading terms per the Iran Pistachio Association; proportions vary by season.

These four labels are partly marketing grades rather than tidy botanical lines, and the round-versus-long split is a measurement convention, so treat any single figure as a rough guide. Fandoghi is the everyday workhorse you'll meet in confectionery and ice cream, while Akbari is the showpiece that commands the highest prices.

Which pistachios are the European PDO types?

Two Mediterranean varieties carry EU Protected Designation of Origin status and a reputation to match. Bronte, the "Pistacchio Verde di Bronte", grows on the volcanic slopes of Mt Etna around Bronte, Adrano and Biancavilla in Catania province, Sicily. It is the cultivar Napoletana (also called Bianca), typically grafted onto Pistacia terebinthus, hand-harvested in alternate years, and prized for an exceptionally deep-green, high-chlorophyll kernel and aromatic flavor that pastry chefs pay heavily for. Aegina, the Greek "Fistiki Aeginis", comes from the island of Aegina and centers on the native round Koilarati variety, known for an emerald kernel, a pale fuchsia-tinged shell, and a sweeter, more intense taste. The Larnaka cultivar is another name you'll see used as a quality comparison point. Reputations like "the world's best" are how these varieties are marketed rather than measurable fact, but the color and aroma that justify their premium are genuine.

Where most pistachios come from today

Three countries dominate world production: the United States, Iran and Turkey, which between them account for the large majority of a global crop of roughly 1.3 to 1.4 million tonnes a year. Per 2024 FAO figures cited by Wikipedia, the US led at about 498,950 tonnes, ahead of Turkey at roughly 383,000 and Iran at about 316,142, together near 87% of the world total. Rankings shift year to year, partly because pistachios are alternate-bearing and a heavy "on" year in one country skews single-season comparisons, so treat any precise tonnage as a snapshot rather than a fixed fact.

For most home uses these distinctions matter less than freshness and form. If you are cooking or blending, our pistachio butter and pistachio powder guides cover how the kernels behave once processed, and how to make pistachio milk shows where the bright-green ones really earn their keep.

Allergy note

Pistachios are a tree nut. Every variety on this page, whether California, Iranian or European PDO, carries the same allergen risk, and "premium" or "round" versus "long" makes no difference to that. Anyone with a tree-nut allergy should avoid pistachios and foods that may contain them, including pistachio milk, pastes and creamers, and check labels for cross-contamination warnings. Pistachio milk made from these nuts is naturally dairy-free and vegan, but it is not nut-free and is never a safe substitute for someone with a pistachio or tree-nut allergy.

Frequently asked questions

Are there different species of pistachio?
Only one is eaten: Pistacia vera. The named 'types' are cultivars and regional varieties of that single species. Other plants in the genus Pistacia, such as P. terebinthus, are used mainly as rootstocks or for resin, not as edible nuts.
What is the difference between Kerman and Golden Hills pistachios?
Both are California female (nut-bearing) cultivars. Kerman is the long-standing industry standard with a late harvest; Golden Hills, released by the University of California in 2005, ripens a few weeks earlier and tends to give a higher percentage of split, ready-to-eat nuts.
What are Bronte and Aegina pistachios?
They are protected European varieties. Bronte from Sicily and Aegina from Greece both hold EU PDO status and are prized for an intensely green kernel and aromatic flavor, which is why they sell at a premium for confectionery and pastry.