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Giant Sensitive Plant

Mimosa pigra

A profile of giant sensitive plant, a thorny Mimosa shrub with folding leaves, pink flower heads, tropical American origin, and wetland impacts.

  • Leaves fold when touched
  • Thorny wetland shrub
  • Tropical American origin
Giant Sensitive Plant showing bipinnate folding leaves.
Image: USDA Forest Service · Public domain

At a glance

  • TypeShrub
  • RangeTropical and subtropical America
  • LeavesBipinnate sensitive leaves
  • FlowersPink round flower heads
Range & community finds

Where it grows in the wild

POWO lists Tropical and subtropical America as the main range context, and the map layers those cited units with GBIF observations.13

Field marks

How to recognize it

Use several traits together before trusting a quick name match.

Bipinnate folding leaves

This is the first field clue to check before comparing flowers, stems, or setting.

Sharp stem prickles

A closer view of this detail helps separate the plant from common look-alikes.

Round pink flower heads

This feature connects the plant to season, growth form, and surrounding habitat.

Don't mix it up

Lookalikes & how to tell them apart

Look-alikes are common enough that one trait is rarely enough.

Sensitive plant

Compare habit, leaves, flowers, and source-backed range.. A similar plant can share part of the same visual vocabulary, so check several field marks together.

Catclaw mimosa

Common names or garden forms can mislead.. Use the scientific name, setting, and close details before treating the identification as settled.

The story

Sensitive shrub in context

Bipinnate folding leaves is the first thing to notice, but the plant does not stop there. Stand back and the shape begins to explain itself: shrub, bipinnate sensitive leaves, and pink round flower heads all working in the same season. The first community record behind this page came from Texas, United States on 2026-06-06. That small record gives the profile a starting point, then the plant asks for a wider look.

Giant Sensitive Plant (Mimosa pigra) is easiest to approach through structure before story. Look for bipinnate folding leaves, and sharp stem prickles, and round pink flower heads. One mark can mislead, especially around garden plants, weedy annuals, hybrids, or familiar common names. A useful field view includes the whole habit, one close detail, and the surrounding ground. That combination lets a reader compare Sensitive plant and Catclaw mimosa without turning the page into a guess from color alone. 2

Range gives the plant another biography. The range profile follows source-backed records for tropical and subtropical america, then places those layers beside reported GBIF observations. The colored layer is not a promise that every hillside, garden bed, or ditch holds the plant. It is a conservative outline of cited geography, while the dots show records that people and collections have reported. 1

The ecological story lives close to the soil. Giant sensitive plant often occupies moist alluvial soil, wet margins, and disturbed ground where seed movement by water can help thickets establish. Above that ground layer, dense wetland thickets shapes what a careful observer might see: visitors at flowers, seeds moving, stems storing water or energy, or leaves returning organic matter to the surface. The plant is not a loose fact on a label. It is a small system with roots, neighbors, weather, and timing.

A final look returns to folding leaflets, pink flower heads, sharp prickles, and wet-edge soil. Compare those details together, and the shrub becomes more than a quick touch-sensitive trick.

Ecology

Its place in the ecological web

The strongest profile of Giant Sensitive Plant includes the organisms and ground conditions around it.

Ecological web

Dense wetland thickets

Giant Sensitive Plant connects flowers, leaves, seeds, stems, or stored growth with insects, weather, wildlife, gardeners, or disturbance depending on the season.2

Soil

Soil & wet edges

Giant sensitive plant often occupies moist alluvial soil, wet margins, and disturbed ground where seed movement by water can help thickets establish.12

Timing

When to look

Warm wet seasons support fast growth, flowering, and pod development in suitable climates.2

Leaves
Flowers
  • Peak bloom
  • Fading & dried heads
  • Leaves out
In Leafari

Found one? Keep a field journal

Save this species to your journal, earn its badge, and see community discoveries on an approximate, privacy-safe map.

  1. 1Photograph the whole plant so growth form and setting are visible.
  2. 2Add a close view of leaves, flowers, fruit, cones, or seed structures.
  3. 3Note the surrounding soil, shade, moisture, or disturbed-ground context.
Giant Sensitive Plant community badge artwork.

Giant Sensitive Plant Badge

Earned when you identify this species in Leafari.

In the Leafari community

1Total finds logged
1Explorers journaled it

First found in Texas, United States, by Gentle-Questioner

References

Sources

Key facts and claims trace back to a named reference. Superscript numbers in the text link here.

  1. Plants of the World Online: Mimosa pigra Taxonomy and range
  2. University of Florida Plant Directory: Mimosa pigra Invasive ecology and field context
  3. GBIF species record: Mimosa pigra Taxon key and observations
  4. Wikimedia Commons images: Giant Sensitive Plant Image attribution
  5. Leafari app records First-found and community snapshot