limestone senna

Names and Synonyms

Common Names

• limestone senna

Scientific Names

Accepted name

Synonyms

• Cassia racemosa
• Cowellocassia racemosa

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Fabales, it is classified under the family Fabaceae. Finally, it is identified by the genus Senna, specifically as the species Sennas racemosa.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is primarily found within various regions of Mexico, including the Northeast and the Gulf areas. Its distribution also extends to the Southwest and Southeast portions of the country. Beyond the borders of Mexico, the species can be located within Central America. Specifically, it is documented to grow in Belize. Together, these locations define the natural range of Senna racemosa.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Senna racemosa is characterized by its status as a perennial plant, meaning it lives for more than two years and undergoes multiple reproductive cycles throughout its lifespan. As a perennial species, it establishes a persistent root system that allows it to survive through varying seasonal conditions, providing the stability necessary for long-term growth. Its developmental stages involve an initial vegetative phase where it focuses on building biomass and establishing a sturdy structural presence, followed by recurring reproductive periods. During these cycles, the plant produces inflorescences that facilitate pollination, leading to seed production which ensures the continuation of the species. This perennial nature allows the plant to occupy its ecological niche consistently, often exhibiting a variable growth habit depending on the environmental resources and climatic stability of its habitat.

Lifecycle :

perennial

Morphology

The morphology of Senna racemosa is characterized by a growth form primarily classified as a shrub, though it exhibits characteristics that can span from a subshrub to a larger woody structure. As a woody plant, it possesses a sturdy, self-supporting architecture, functioning as an independent organism that does not rely on other plants for support, thereby lacking any climber, vine, or liana tendencies. It is strictly a terrestrial species, showing no aquatic or semiaquatic adaptations, and it maintains a non-epiphytic existence, growing directly within its soil substrate rather than as an obligatory or facultative epiphyte.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Sennas racemosa is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency. The plant exhibits highly stable leaf morphological traits, specifically regarding its biomass distribution and leaf architecture. Its Leaf Dry Matter Content (LDMC) is recorded at a consistent value of 357.4 mg/g, showing no variance between its minimum, mean, and maximum measurements. Similarly, the Specific Leaf Area (SLA) remains uniform across all observed parameters, with a fixed value of 123.66 cm²/g for its minimum, mean, and maximum values. These physiological indicators suggest a specialized leaf structure with a standardized density and surface area-to-mass ratio, optimized for its specific environmental niche.

Leaf dry matter content (LDMC) mean:

357.4 mg/g

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) min:

123.66 cm²/g

Reproduction

Reproduction in Senna racemosa involves a complex interplay of various mechanisms to ensure the propagation of the species across diverse habitats. The dispersal syndrome of this plant is characterized as unspecialized, utilizing multiple vectors to transport seeds away from the parent plant. It exhibits autochorous dispersal, where seeds are released directly from the mature fruit, but it also relies on anemochorous (wind), zoochorous (animal), and hydrochorous (water) processes. This multi-modal approach to dispersal allows the seeds to traverse different environmental barriers, utilizing air currents, animal movement, and water flow to colonize new territories effectively.

Dispersal syndrome :

autochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Senna racemosa 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 leaf.

Leaf

1. Fitoterapia

Chemicals

Senna racemosa has 1 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Cassine.

Cassine

1. Fitoterapia

Activities

Senna racemosa has 1 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Antimicrobial.

Antimicrobial

1. Fitoterapia

Conditions

Senna racemosa has 3 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include Bacillus subtilis, Candida albicans, Staphylococcus aureus.

Bacillus subtilis

1. Fitoterapia

Candida albicans

1. Fitoterapia

Staphylococcus aureus

1. Fitoterapia