North America Non-native Plant

Mantisalca

Botanical name: Mantisalca

USDA symbol: MANTI

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Mantisalca: A Lesser-Known Forb for Western Gardens If you’ve stumbled across the name mantisalca in your gardening research, you’re not alone in wondering what exactly this plant is all about. Mantisalca is a genus that falls into that curious category of plants that botanists know about, but gardeners rarely encounter ...

Mantisalca: A Lesser-Known Forb for Western Gardens

If you’ve stumbled across the name mantisalca in your gardening research, you’re not alone in wondering what exactly this plant is all about. Mantisalca is a genus that falls into that curious category of plants that botanists know about, but gardeners rarely encounter in their everyday plant shopping adventures.

What is Mantisalca?

Mantisalca is a genus of flowering plants that belongs to the forb family – think of forbs as the herbaceous cousins of shrubs and trees. These are plants that lack significant woody tissue and die back to ground level, whether they’re annuals that complete their life cycle in one year or perennials that return year after year. The members of this genus can be either annual or perennial, giving them some flexibility in how they approach life.

Unlike many of the native wildflowers we champion in western gardens, mantisalca species are actually non-native plants that have established themselves in the wild. They’ve become part of the naturalized flora, reproducing on their own without human intervention once introduced to an area.

Where Does Mantisalca Grow?

In the United States, you’ll find mantisalca species primarily in the southwestern states, specifically Arizona and California. These plants have adapted to the unique growing conditions of these regions, though the specific details of their preferred habitats remain somewhat mysterious at the genus level.

The Garden Dilemma: To Plant or Not to Plant?

Here’s where things get a bit tricky for the conscientious gardener. While mantisalca isn’t listed as invasive or noxious (at least not that we know of), it’s also not a native plant. This puts it in a gray area that many native plant enthusiasts grapple with.

The honest truth? There’s limited information available about mantisalca as a garden plant. Most gardening resources focus on specific species rather than entire genera, which makes it challenging to give you solid advice about growing conditions, care requirements, or even what the plants look like in a garden setting.

Native Alternatives to Consider

If you’re drawn to forbs for your Arizona or California garden, consider exploring some spectacular native options instead:

  • Desert marigold (Baileya multiradiata) for sunny, cheerful blooms
  • Chuparosa (Justicia californica) for hummingbird appeal
  • Brittlebush (Encelia farinosa) for drought-tolerant beauty
  • Ghost plant (Graptopetalum paraguayense) for unique texture

These native alternatives offer well-documented benefits for local wildlife, proven garden performance, and the satisfaction of supporting your local ecosystem.

The Bottom Line

Mantisalca represents one of those botanical curiosities that highlights how much we still don’t know about the plant world. While it’s established in parts of the American Southwest, the lack of readily available information about its garden potential, growing requirements, and ecological impact makes it a bit of a wild card for home gardeners.

If you’re committed to creating a thriving, wildlife-friendly garden, your energy might be better invested in learning about and growing the many well-documented native plants that are perfectly adapted to your local conditions. These plants come with established care guides, known wildlife benefits, and the peace of mind that comes with supporting your local ecosystem.

Sometimes the most interesting plants are the ones we observe in the wild rather than invite into our carefully curated garden spaces – and mantisalca might just be one of those plants.

Mantisalca

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Mantisalca Cass. - mantisalca

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA