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July 30, 2026Short & citedBlog
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Field Notes • Botany

Jalapeño

The jalapeño is a medium-sized chilli pepper, a cultivated variety within *Capsicum annuum*.

Updated July 30, 20261 min readCited sources

The jalapeño is a medium-hot chilli pepper, a cultivated variety of *Capsicum annuum*, native to Mexico and named after Xalapa, Veracruz.

What it is

Jalapeños belong to the nightshade family (Solanaceae) and are a cultivar group within *Capsicum annuum*. The plants are warm-season annuals or short-lived perennials, growing 2–3 feet tall with small white flowers. The fruits are thick-walled, typically 5–10 cm long, and are usually harvested green but can ripen to red.

Key details

Jalapeños rate 2,500–8,000 Scoville heat units, placing them in the mild-to-medium range. They are used fresh, cooked, pickled, or smoked; smoked jalapeños are called chipotles. The name comes from Xalapa (Jalapa), the capital of Veracruz, Mexico, a region traditionally associated with their cultivation.

Why it matters

Jalapeños are a common culinary pepper in Canada, widely sold in grocery stores and grown in home gardens. They are versatile in cooking and food processing, adding moderate heat and flavour to many dishes.

In short

  • Jalapeño is a cultivated variety of *Capsicum annuum*, not a separate species.
  • Heat level is mild-to-medium, around 2,500–8,000 SHU.
  • Smoked jalapeños are known as chipotles.
  • Widely available in Canada for fresh, pickled, or cooked use.
Canadian angle

Jalapeños are widely sold and grown in Canada as a common culinary pepper, especially in home gardens, grocery produce sections, and food processing.

Quick questions

Is a jalapeño a separate species?
No. It is a cultivated variety of *Capsicum annuum*, not a distinct species.
How hot is a jalapeño?
Jalapeños are usually rated around 2,500 to 8,000 Scoville heat units, placing them in the mild-to-medium range of chilli peppers.
What is a chipotle?
A chipotle is a smoked, dried jalapeño pepper.

Sources

  1. NCBIhttps://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=40321
    Supports: Taxonomic placement of jalapeño within *Capsicum annuum var. annuum*.
  2. Royal Botanic Gardens, Kewhttps://www.kew.org/plants/pepper
    Supports: Jalapeños belonging to the same species as other peppers such as bell peppers and cayenne peppers.
  3. National Parks Board (NParks)https://www.nparks.gov.sg/florafaunaweb/flora/6/5/6521
    Supports: Family name Solanaceae and common name jalapeño.
  4. World Food and Winehttps://www.worldfoodwine.com/jalapeno
    Supports: Plant characteristics, fruit dimensions, growth habit, and heat range.
  5. Gardenia.nethttps://www.gardenia.net/plant/capsicum-annuum-jalapeno
    Supports: Cultivation details, plant type, maturity timing, and growing conditions.
  6. Royal Horticultural Societyhttps://www.rhs.org.uk/plants/383264/capsicum-annuum-var-annuum-longum-group-early-jalapeno/details
    Supports: Fruit description, ripening from green to red, and cultivar information.