Zucchini (called courgette in Britain), yellow summer squash, acorn squash, spaghetti squash, classic orange pumpkins, and inedible ornamental gourds all belong to this one species, Cucurbita pepo. It was first domesticated in Mexico more than 8,000 years ago, and wild forms such as the Texas gourd still grow in parts of the US.

Appearance

Growth form
Plants are usually 1–2.5 ft (30–76 cm) tall and 2–3 ft (61–91 cm) wide.
Leaves
Leaves have 3–5 deep lobes, and the leaf stalks are prickly.
Flowers
Big yellow flowers; each plant has separate male and female flowers. The blossoms are often fried and eaten.
Fruit
Fruit shape varies hugely by . The fruit stalk has 5–6 sharp angles and grooves and flares out where it meets the fruit.

Look-alikes

Butternut squashCucurbita moschata

Its leaves are barely lobed, often with white patches, and the leaf stalks aren't prickly. Its fruit stalk is angled and flares at the tip but has no deep grooves.

Why they get mixed upBoth are grown as winter squash and pumpkins.

Hubbard squashCucurbita maxima

The fruit stalk is round, soft, and spongy, without grooves or a flared tip. Leaves are only shallowly lobed and the stalks aren't prickly.

Why they get mixed upBig round pumpkins come from this species too.

Telling squash species apart
LeavesLeaf stalkFruit stalk
Zucchini, pumpkinDeeply lobedPricklyAngled, grooved, flared
Butternut squashBarely lobed, white patchesNot pricklyAngled, flared
Hubbard squashShallowly lobedNot pricklyRound, spongy, no grooves

Where it lives

Typical habitats
  • Vegetable gardens
  • Farm fields
  • Sandy riverbeds (wild Texas gourd)
Range
Grown across the US and worldwide. Wild Texas gourds grow mainly in southeastern Texas, and other wild populations occur in the Mississippi Valley and the Ozark Plateau.

Name and classification

About the name
Botanists recognize wild and cultivated subspecies, including the wild Texas gourd. Pattypan (scallop) squash is usually treated as a cultivar group of this species, though some classifications list it separately as Cucurbita melopepo.
Varieties and forms
Major cultivar groups include zucchini, cocozelle, crookneck, straightneck, pattypan (scallop), acorn, pumpkin, and vegetable marrow (which includes spaghetti squash), plus ornamental gourds.

Conservation

IUCN Red List
LCLeast ConcernLow risk of extinction

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Courgette (Cucurbita pepo) — identification, habitat & look-alikes | Moeyo