Karwinskia humboldtiana

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Rhamnus biniflora
• Rhamnus maculata
• Rhamnus humboldtiana
• Karwinskia biniflora
• Karwinskia sessilifolia
• Karwinskia affinis

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 Rosales, it is classified under the family Rhamnaceae. Specifically, its taxonomic identity is defined by the genus Karwinskia, with the species name humboldtiana.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad distribution across the southern regions of North America. In the South-Central United States, its presence is specifically noted within the state of Texas. Moving into Mexico, it is widely found throughout the central territories of the country. The species also inhabits the northeastern and gulf regions of Mexico. Finally, its range extends into the southwestern areas of Mexico, completing its diverse geographical footprint.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Karwinskia humboldtiana is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. Throughout its life cycle, the species undergoes various developmental stages, exhibiting a variable growth pattern that enables it to establish itself within its natural habitat. As a perennial, it avoids the complete senescence seen in annuals, instead focusing on long-term survival and repeated reproductive efforts over several years.

Lifecycle :

perennial

Morphology

The morphology of Karwinskia humboldtiaana is characterized by a woody structure, manifesting primarily as a shrub or small tree. This plant reaches a mean height of approximately 5 m and functions as a self-supporting organism, meaning it does not require external structures like lianas or vines for climbing. It is a terrestrial species, growing independently without any parasitic relationship to other plants.

Aquatic :

terrestrial

Climber :

self-supporting

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height mean:

5 m

Woodiness :

woody

Physiology

The physiology of Karwinskia humboldtiana is characterized by a C3 photosynthetic pathway, indicating a standard carbon fixation process typical of many temperate and tropical shade-adapted species. Its leaf morphology and resource allocation strategies are defined by a consistent Specific Leaf Area (SLA) of 161.44 cm²/g, which remains uniform across its observed minimum, mean, and maximum values. This is complemented by a Leaf Dry Matter Content (LDMC) that is also highly stable, maintaining a constant value of 376.2 mg/g throughout its range. Furthermore, the structural integrity and biomass distribution of the plant are reflected in its stem specific density (SSD), which maintains a steady density of 700 mg/cm³, with no variation observed between its minimum, mean, and maximum recorded values.

Leaf dry matter content (LDMC) mean:

376.2 mg/g

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) min:

161.44 cm²/g

Stem specific density (SSD) min:

700 mg/cm³

Reproduction

The reproduction of Karwinskia humboldtiana is characterized by a diverse set of dispersal strategies and specific seed morphologies. The plant exhibits a multifaceted dispersal syndrome, utilizing anemochorous, zoochorous, autochorous, hydrochorous, and unspecialized methods to spread its progeny across various environments. The seeds produced are highly uniform in their physical dimensions, maintaining a consistent seed length with a mean, minimum, and maximum value of 5.239 mm. While the length is fixed, the seed mass demonstrates notable variability, ranging from a minimum of 0.02917 g to a maximum of 0.12741 g, with an overall average seed mass of 0.075891429 g.

Dispersal syndrome :

zoochorous

Seed length mean:

5.239 mm

Seed mass max:

0.12741 g

Seed mass mean:

0.075891429 g

Seed mass min:

0.02917 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Karwinskia humboldtiana 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 fruit.

Fruit

1. Journal of the neurological sciences

Chemicals

Karwinskia humboldtiana has 4 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include T 514, T-544, T 496, T-516.

T 514

1. Anti-cancer drugs
2. Toxicology
3. Toxicon : official journal of the International Society on Toxinology

T-544

1. Anti-cancer drugs
2. Toxicology
3. Toxicon : official journal of the International Society on Toxinology

T 496

1. Anti-cancer drugs

T-516

1. Anti-cancer drugs

Activities

Karwinskia humboldtiana has 5 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Cytostatic, Cytotoxic, Genotoxic, Hepatotoxic, Toxic.

Cytostatic

1. Anti-cancer drugs

Cytotoxic

1. Anti-cancer drugs

Genotoxic

1. Anti-cancer drugs

Hepatotoxic

1. Toxicology

Toxic

1. Anti-cancer drugs

Conditions

Karwinskia humboldtiana has 4 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include Guillain-Barré syndrome, bulbar paralysis, polyradiculoneuropathies, polyradiculoneuropathy.

Guillain-barré syndrome

1. Journal of the neurological sciences

Bulbar paralysis

1. Journal of the neurological sciences

Polyradiculoneuropathies

1. Journal of the neurological sciences

Polyradiculoneuropathy

1. Journal of the neurological sciences

Preparations

Karwinskia humboldtiana has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include fruit.

Fruit

1. Salud publica de Mexico
2. Journal of the neurological sciences