ExplorePlants

Bigpod Sesbania

sesbania herbacea

Bigpod Sesbania, scientifically known as Sesbania herbacea, is a fast-growing annual legume native to the southern United States and northern Mexico. Often reaching impressive heights of up to four meters, this robust herb is frequently encountered in moist, disturbed environments, floodplains, and agricultural fields—particularly rice paddies, where it is sometimes viewed as a weed. Despite its weed-like persistence, it plays a vital role in its ecosystem by forming symbiotic relationships with soil bacteria to fix nitrogen, enriching the surrounding soil. This plant features delicate, feather-like compound leaves that give it an airy, elegant appearance despite its towering stature. During the late summer and autumn, it produces clusters of charming yellow flowers mottled with purple spots. These blooms later mature into remarkably long, thread-like seed pods, which dangle gracefully from the branches. For nature enthusiasts, spotting Bigpod Sesbania offers a glimpse into the dynamic ways pioneering plants colonize wet soils and contribute to the nitrogen cycle. Learn to recognize Bigpod Sesbania in the wild using the Snappit field guide app.

Habitat: Found in moist, open areas, agricultural fields, floodplains, ditches, and disturbed wetlands.

Appearance

Bigpod Sesbania is a tall, erect annual herb that can grow 1 to 4 meters high, characterized by a smooth, fibrous stem that branches widely near the top. Its leaves are pinnately compound, measuring up to 30 cm long, with numerous small, oblong leaflets arranged in pairs. The plant produces drooping clusters of pea-like flowers that are bright yellow, often brushed or speckled with reddish-purple on the outer petals. These flowers give way to the plant's most distinctive feature: extremely long, slender, curved green seed pods that measure 10 to 20 cm in length and only a few millimeters wide, hanging down like thin beans.

KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderFabalesFamilyFabaceaeGenusSesbania
Bigpod Sesbania
Bigpod Sesbania

Category

Plants

Rarity

Common

Danger

1/5 · Very low

Snaps

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Interesting facts

Despite being considered a noxious weed in crops like rice and soybeans, Bigpod Sesbania is highly valued in some restoration projects for its rapid soil-enriching nitrogen fixation.

Its scientific name herbacea means herbaceous, highlighting its non-woody, annual growth habit despite reaching the height of a small tree.

The seeds of Bigpod Sesbania contain sesbanimide, a compound that is toxic to livestock, particularly cattle and goats, if consumed in large quantities.

Special abilities

Ability

Nitrogen Fixer

It forms a symbiotic relationship with rhizobia bacteria in its root nodules, converting atmospheric nitrogen into a form usable by plants.

Ability

Waterlogging Tolerance

It possesses specialized spongy tissue called aerenchyma in its roots, allowing it to survive and thrive in saturated, oxygen-poor soils.

Ability

Rapid Growth Spurt

It can grow several meters in a single season, outcompeting neighboring vegetation for sunlight in disturbed habitats.

Measurements & details

Length
100-400 cm
Weight
0.2-1.5 kg
Lifespan
1 years

Diet & Feeding

As a photoautotrophic plant, Bigpod Sesbania produces its own food through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing key nutrients through its root system.

Primary Foods

  • Sunlight
  • Carbon dioxide
  • Water
  • Soil minerals

Foraging Method

  • Photosynthesis

Ecological connections

host plant

Sleepy Orange

Abaeis nicippe

Provides larval food for the caterpillars of this sulfur butterfly.

eaten by

Brown Stink Bug

Euschistus servus

A common pest insect that feeds on the seeds and pods of the plant.

competitor

Cultivated Rice

Oryza sativa

Competes with this crop for nutrients, sunlight, and water in agricultural fields.

Traits

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Also known as

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Safety

Danger

1/5 · Very low

No special safety notes yet.

Frequently Asked Questions

How to identify Bigpod Sesbania?

The easiest way to identify Bigpod Sesbania is to use the Snappit nature identifier app.

How long is Bigpod Sesbania?

100-400 cm

How much does Bigpod Sesbania weigh?

0.2-1.5 kg

How long does Bigpod Sesbania live?

1 years

What does Bigpod Sesbania eat?

As a photoautotrophic plant, Bigpod Sesbania produces its own food through photosynthesis, utilizing sunlight, carbon dioxide, and water while absorbing key nutrients through its root system.

Where is Bigpod Sesbania usually found?

Found in moist, open areas, agricultural fields, floodplains, ditches, and disturbed wetlands.

How does Bigpod Sesbania hunt?

Photosynthesis

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