Are Raspberries And Blackberries Related? | Same Genus Facts

Raspberries and blackberries come from the Rubus group in the rose family, so they’re close relatives that form fruit in similar, easy-to-spot ways.

You’re not alone if raspberries and blackberries feel like siblings. They look alike in a carton. They stain your fingers the same way. They both show up in pies, jams, smoothies, and summer snacks.

Still, they don’t behave the same once you pick them, grow them, or compare their plants side by side. The fun part is that the differences are simple once you know where to look.

This article breaks down the family connection, the plant science behind their fruits, and the practical “how to tell” details you can use at the store, in the yard, or on a trail.

Yes, They’re Related, And Here’s The Simple Reason

Raspberries and blackberries are related because they belong to the same genus: Rubus. A genus is a grouping that sits above “species” in plant naming. Think of it as a shared surname.

Within Rubus, there are many species and many natural crosses. Some are labeled raspberry, some are labeled blackberry, and plenty land in the “hybrid caneberry” zone that can feel like a mash-up of both.

They also share a bigger family, too. Rubus plants sit inside the rose family, called Rosaceae. That’s why their flowers can look surprisingly rose-like up close, even though the plants grow as canes and thickets instead of tidy bushes.

Are Raspberries And Blackberries Related? A Clear Botanical Answer

Yes. They’re closely related as members of the same genus, Rubus. “Raspberry” and “blackberry” are common names that cover multiple species and types within that genus, not a single one-to-one match.

That one fact explains a lot: why they share a similar fruit shape, why breeders can cross them, and why their plants have overlapping habits like perennial roots and cane growth.

Where The Relationship Shows Up In Real Life

The family connection shows up in three places you can notice without lab gear: the flower, the fruit structure, and the way the plant grows year to year.

They Make “Aggregate” Fruits Made Of Drupelets

What you call a raspberry or blackberry “berry” isn’t a single berry in the strict botany sense. It’s an aggregate fruit made of many small units called drupelets. Each drupelet holds a seed.

That’s why one berry can have dozens of little bead-like sections. When you bite one drupelet, you get a tiny pop. Multiply that by a whole cluster, and you get the classic bramble-fruit texture.

They Share The Cane Growth Habit

Most raspberries and blackberries grow from a long-lived crown and roots, then send up canes. Many types follow a two-year cane cycle: one year of cane growth, one year of fruiting, then that cane dies back.

Plant breeders have expanded this with varieties that can fruit on first-year canes, yet the “caneberry” identity still fits: these plants make fruit on upright or arching canes, often with prickles, and they respond well to trellising.

Raspberries Vs. Blackberries: The Fruit Difference People Notice First

If you want one quick way to tell the fruits apart, focus on the core inside.

Raspberries Pop Off Hollow

When you pick a typical raspberry, the fruit comes away from the white core (the receptacle). The core stays on the plant, and the berry is hollow inside. That hollow center is a classic raspberry tell.

Blackberries Come Off With A Solid Core

When you pick a typical blackberry, the receptacle stays attached to the fruit. You eat that core as part of the berry, so the fruit is not hollow.

If you want a clean, field-ready explanation with pictures and plain wording, Oregon State University Extension lays out the hollow-raspberry vs. solid-blackberry detail in its home-garden material on caneberries. Oregon State University Extension’s raspberry picking and fruit structure notes describe how the receptacle behaves at harvest.

Taxonomy: Same Genus, Different Species

“Raspberry” often points to species in the red raspberry group, such as Rubus idaeus, while “blackberry” is used for multiple species and species complexes within Rubus. That complexity is one reason labels can feel messy.

To see how formal plant references name these plants, it helps to look at sources built for plant identification and classification. The Royal Botanic Gardens, Kew lists accepted scientific names and publishing details for many species. Kew Science Plants of the World Online entry for Rubus idaeus is one place to see how a common raspberry is treated in an authoritative taxonomy system.

In the United States, the USDA’s plant profiles are another useful reference point for family and genus placement. USDA PLANTS profile for Rubus idaeus lists its family as Rosaceae and places it in the broader Rubus group.

Those sources won’t teach you every grocery-store nuance, yet they anchor the relationship: both fruits sit in the same genus, inside the same larger family.

Trait	Raspberries	Blackberries
Shared genus	Rubus	Rubus
Plant family	Rosaceae (rose family)	Rosaceae (rose family)
Fruit build	Aggregate fruit made of drupelets	Aggregate fruit made of drupelets
What happens at harvest	Receptacle stays on plant; berry is hollow	Receptacle stays with fruit; berry has a core
Typical cane look	Often more upright canes; some types sucker	Often arching or trailing canes; many need support
Prickles	Common, yet some cultivated types are less prickly	Common, yet many cultivated types are thornless
Color range	Red, black, purple, gold (type depends on species/cultivar)	Dark purple to black is common; red types exist in some species
Hybrid potential	Can cross with blackberry types in breeding	Can cross with raspberry types in breeding

Why The Names Get Confusing In Stores

Common names are built for everyday use, not for perfect taxonomy. In a produce aisle, “blackberry” means “dark bramble fruit that tastes like a blackberry,” not “one narrow species.” The same goes for “raspberry.”

That’s why you can see berries that blur the line: black raspberries, purple raspberries, dewberries, and a long list of breeder-made hybrids. They’re still family. They just land on different branches of a busy, messy family tree.

Black Raspberries Are A Good Example

Black raspberries look blackberry-like at a glance because of the color. Yet the harvest clue still helps: many black raspberries pull away hollow like other raspberries, while blackberries keep the core.

How Breeders Cross Them And What “Hybrid” Really Means

Because raspberries and blackberries sit close within Rubus, breeders have created crosses that borrow traits from both sides. Some hybrids lean raspberry in aroma and shape. Some lean blackberry in size and firmness.

Hybrid caneberries can be useful if you want a certain taste, a longer fruiting window, or a plant habit that fits a trellis system. The trade-off is that labels can get fuzzy fast, since a hybrid may be marketed under a familiar name even when its background is mixed.

Caneberry type	How it relates	What you’ll often notice
Red raspberry	Common raspberry group within Rubus	Hollow center at picking; bright aroma
Blackberry	Multiple Rubus species and complexes	Core stays with fruit; deeper, earthy sweetness
Black raspberry	Rubus species called a raspberry by fruit behavior	Often hollow at picking; darker, winey flavor
Purple raspberry	Often bred from raspberry x blackberry backgrounds	Color between red and black; mixed traits
Logan-type hybrids	Raspberry-blackberry crosses used in breeding	Elongated berries; tangy, jam-friendly taste
Thornless blackberry types	Blackberry lines selected for fewer prickles	Easier picking; large berries; sturdy canes
Primocane-fruiting types	Selected to fruit on first-year canes	Later-season harvest; fresh canes can carry fruit

Plant Clues: Leaves, Canes, And Growth Style

If you’re looking at the plants instead of the fruit, you can still spot patterns. Some raspberries sucker and form rows that spread from the crown. Many blackberries grow with longer arching canes that want space and support.

Leaves can overlap in shape across the group, so they’re not a perfect ID tool alone. Prickles are also not a safe clue since many cultivated blackberries are thornless and some raspberries can be low-prickle types.

When you want a practical, grower-focused overview, North Carolina State Extension collects caneberry material under its Rubus program pages. NC State Extension’s caneberry resources can help you line up cultivar traits, training styles, and basic growth habits without guesswork.

Flavor And Texture: Family Resemblance, Different Personalities

Raspberries often hit with brighter aroma and a quick sweet-tart snap. Blackberries often feel deeper, with a richer sweetness and a slightly firmer chew. That’s a pattern, not a rule. Ripeness, variety, and growing conditions can swing flavor hard.

Texture differences often track the core behavior. A hollow raspberry can feel softer and more delicate. A blackberry that carries its receptacle can feel a bit more substantial in the center.

Nutrition: Similar Category, Small Differences

From a food standpoint, both fruits are commonly grouped as nutrient-dense choices that bring fiber and a range of naturally occurring plant compounds. The exact numbers vary by cultivar, ripeness, and serving size.

If you want a plain-language plant overview that still nods to structure and fruit form, Encyclopaedia Britannica’s berry entries are useful for background reading, including notes that raspberries are aggregate fruits and that the core behavior differs from blackberries. Britannica’s blackberry description is one example of that broader, reference-style framing.

Picking And Storing: What The Relationship Means For Freshness

Because raspberries tend to be more delicate, they often show bruising and mold sooner. Blackberries can hold up a bit better in a container, yet they still dislike heat and rough handling.

Easy Store Check For Better Berries

• Scan the bottom of the clamshell for juice stains or crushed fruit.
• Look for dry, intact drupelets instead of wet, slumped ones.
• Check for fuzzy mold, especially around seams where berries press together.
• Choose berries that look evenly ripe, not half dull and half glossy.

At Home Storage That Actually Works

• Keep berries dry in the fridge until you’re ready to eat them.
• Rinse right before eating, not right after buying.
• Spread them in a shallow layer if you can, so weight doesn’t crush the bottom.
• Pull out any damaged berries early so they don’t spoil the rest.

So, Are They “The Same” Or Just Cousins?

They’re cousins, not the same fruit. The shared genus ties them together. Species differences and breeding history set them apart in how they pick, how they grow, and how they taste.

If you want one mental shortcut, use this: raspberries and blackberries are part of the same bramble clan, built from many drupelets, yet the core behavior at picking is the cleanest divider for most common types.

Quick Visual Recap You Can Use Anywhere

Next time you’re holding a berry, check the center.

• If it’s hollow, it’s in raspberry territory.
• If it has a soft core you can bite through, it’s in blackberry territory.

Then zoom out: look at the plant, the cane habit, and the label. If it’s a named hybrid, expect mixed traits. That’s normal for Rubus.