Crotalaria laburnoides

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a diverse geographical distribution across several key regions of the African continent. In West-Central Tropical Africa, it can be found within the territories of both Congo and the Democratic Republic of the Congo. Its range extends into Northeast Tropical Africa, where it is documented in Somalia. Additionally, the species is present in East Tropical Africa, specifically inhabiting Kenya. Finally, its distribution continues through the neighboring landscapes of Tanzania.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Crotalaria laburnoides is characterized by its classification as an annual species, meaning it completes its entire biological cycle—from germination and vegetative growth to flowering and seed production—within a single growing season. As an annual, the plant focuses its metabolic energy on rapid development and prolific seed dispersal to ensure the survival of the next generation before the onset of unfavorable environmental conditions. Following germination, the plant undergoes a period of vegetative expansion, developing the necessary foliage to support photosynthesis, which fuels its subsequent reproductive phase. During this phase, it produces distinctive flowers and seed pods, ultimately culminating in the maturation of seeds that lie dormant in the soil to await the next seasonal cycle.

Lifecycle :

annual

Morphology

The morphology of Crotalaria laburnoides is characterized by a growth form classified as a non-woody herb or forb. It functions as an independent organism, neither acting as a parasite nor an epiphyte, maintaining a primarily terrestrial existence within its habitat. Although it exhibits characteristics that can range across aquatic, semiaquatic, and terrestrial environments, its structural development is primarily land-based. In terms of its climbing habit, the plant is self-supporting, functioning as a self-supporting structure rather than an obligatory or facultative liana or vine.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Woodiness :

non-woody

Physiology

The physiology of Crotalaria laburnoides is characterized by a primary metabolic framework governed by a C3 photosynthetic pathway. In this process, carbon dioxide is fixed directly from the atmosphere through the enzyme RuBisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase) during the Calvin cycle, resulting in the initial formation of a three-carbon compound, 3-phosphoglycerate. This metabolic strategy dictates the plant's gas exchange dynamics and water-use efficiency, as it relies on maintaining open stomata for CO2 uptake, which inherently increases transpiration rates compared to C4 or CAM species. The plant's energy assimilation and biomass production are thus closely linked to environmental variables such as light intensity, temperature, and moisture availability, which influence the efficiency of the C3 cycle and the overall carbon sequestration capacity of the organism.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Crotalaria laburnoides has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include seed.

Seed

1. Thorax

Conditions

Crotalaria laburnoides has 3 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include primary pulmonary hypertension, pulmonary hypertension, right ventricular hypertrophy.

Primary pulmonary hypertension

1. Thorax

Pulmonary hypertension

1. Thorax

Right ventricular hypertrophy

1. Thorax

Preparations

Crotalaria laburnoides has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include powdered seeds.

Powdered seeds

1. Thorax