Sensitive Plant

mimosa pudica

The Sensitive Plant, scientifically known as Mimosa pudica, is a fascinating herbaceous perennial renowned for its rapid leaf movements in response to touch, warmth, or shaking. This unique characteristic, known as thigmonasty, allows its fern-like leaves to quickly fold inward and droop, giving the impression of shyness or wilting. Beyond its playful response to interaction, Mimosa pudica is a hardy and widespread plant, often found colonizing disturbed soils in tropical and subtropical regions. Its engaging behavior makes it a popular botanical novelty and a subject of scientific study into plant mechanosensory systems.

Habitat: The Sensitive Plant thrives in open, disturbed areas such as roadsides, pastures, clearings, and cultivated fields in tropical and subtropical climates.

Appearance

Mimosa pudica is a low-growing, sprawling herbaceous plant typically reaching 15-100 cm in height. Its most distinctive feature is its delicate, compound leaves, which are bipinnately divided into numerous small, oval leaflets that resemble tiny ferns. The stems are slender and often covered with small prickles. Small, globular, pink or purplish puffball-like flowers, about 1-2 cm in diameter, emerge from the leaf axils, giving way to flat, bristly pods containing seeds. The overall appearance is delicate yet resilient.

KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderFabalesFamilyFabaceaeGenusMimosa

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Sensitive Plant

Interesting facts

Despite its delicate appearance, Mimosa pudica is considered an invasive species in many tropical areas, outcompeting native vegetation due to its vigorous growth and prolific seed production.

It is sometimes referred to as the 'Shy Plant' or 'Touch-Me-Not' because of its immediate and dramatic reaction to physical contact.

The rapid leaf movement is driven by changes in turgor pressure within specialized motor organs called pulvini, located at the base of each leaflet and petiole.

Traditional medicine systems in various cultures have utilized Mimosa pudica for its purported anti-inflammatory, antidepressant, and wound-healing properties.

Special abilities

Upon physical contact, shaking, or rapid temperature changes, the leaves of Mimosa pudica quickly fold inward and the petioles droop, a defense mechanism against herbivores and environmental stressors.

The plant exhibits nyctinasty, where its leaves fold up at dusk and reopen at dawn, following a circadian rhythm, possibly to conserve water or deter nocturnal herbivores.

Beyond direct touch, the Sensitive Plant's foliage also reacts to strong winds or intense light by folding, indicating a broader sensitivity to various environmental stimuli.

Measurements & details

Length: 15-100 cm
Weight: 0.01-0.5 kg
Lifespan: 1-3 years
Clutch Size: 50-500

Diet & Feeding

As a photosynthetic organism, Mimosa pudica produces its own energy by converting sunlight into sugars. It obtains water and essential mineral nutrients from the soil through its root system.

Primary Foods

Sunlight
Carbon Dioxide
Water
Nitrogen
Phosphorus
Potassium

Foraging Method

Absorption

Ecological connections

Mutualism

Honey Bee

Apis mellifera

Pollination

Mutualism

Rhizobium bacteria

Rhizobium leguminosarum

Nitrogen Fixation

Eaten by

Garden Snail

Helix aspersa

Herbivory

Competitor

Crabgrass

Digitaria sanguinalis

Competition for resources

Traits

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Also known as

No aliases listed yet.

Collections

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Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Sensitive Plant?

Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details.

How long is Sensitive Plant?

15-100 cm

How much does Sensitive Plant weigh?

0.01-0.5 kg

How long does Sensitive Plant live?

1-3 years

What does Sensitive Plant eat?

As a photosynthetic organism, Mimosa pudica produces its own energy by converting sunlight into sugars. It obtains water and essential mineral nutrients from the soil through its root system.

Where is Sensitive Plant usually found?

The Sensitive Plant thrives in open, disturbed areas such as roadsides, pastures, clearings, and cultivated fields in tropical and subtropical climates.

How does Sensitive Plant hunt?

Absorption

How many eggs does Sensitive Plant lay?

50-500