Tecoma stans var. stans

Tecoma stans var. stans · Accepted scientific name

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Tecoma stans var. stans, commonly known as yellow elder, is a resilient shrub recognized for its vibrant flowering displays. Scientific investigations have highlighted its unique chemical profile, which includes bioactive compounds such as crenatoside and phenylethanoid glycoside. These specific constituents have garnered significant interest within the field of pharmacological research. Current studies are exploring the potential of these chemical properties to combat various viral threats, including the Zika Virus. Understanding this plant's medicinal value offers promising avenues for future therapeutic developments.

Quick facts
Synonyms
Tecoma Velutina · Stenolobium Tronadora · 12 more
Common names
Not available
Family
Bignoniaceae
Distribution
Africa
Plant Parts
Not available

Classification

Common Names

Tecoma stans var. stans is a vibrant flowering plant that is recognized by several different names depending on the region. It is widely known by its common name, the yellow trumpetbush, due to its bright and distinctive blooms. In many areas, this species is also referred to as Tronadora. Whether you call it by its formal botanical designation or its popular nicknames, its striking appearance remains unmistakable. Understanding these various names helps gardeners and botanists alike identify this beautiful shrub in the wild.

Sources: Catalogue of Life (COL)

Synonyms

Tecoma stans var. stans is a botanical subject frequently identified by various synonymous names in scientific literature. Within various taxonomic records, it is often referred to as Bignonia frutescens or Bignonia sorbifolia. The plant is also linked to the names Bignonia tecoma and Bignonia tecomoides depending on the specific classification system used. Additionally, researchers may encounter this variety under the synonym Stenolobium incisum. Understanding these diverse nomenclatures is essential for accurate identification and consistent study of the species.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Tecoma stans var. stans is a fascinating botanical specimen that belongs to the diverse kingdom Plantae. Within this vast realm, it is classified under the class Equisetopsida, reflecting its fundamental structural characteristics. The plant is further organized into the order Lamiales, a group known for its unique floral arrangements. It continues its taxonomic journey as a prominent member of the family Bignoniaceae. Ultimately, this variety is identified by its specific genus, Tecoma, which defines its distinct biological identity.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Lamiales
Family Bignoniaceae
Genus Tecoma

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Tecoma stans var. stans exhibits a widespread geographic range that primarily centers around the African continent. This variety is found across diverse regions, including Macaronesia and the Canary Islands. Its presence extends into the remote stretches of the Middle Atlantic Ocean, specifically reaching islands such as Ascension and St. Helena. Within mainland Africa, the plant is notably established in Northeast Tropical Africa, spanning through countries like Chad and Eritrea. This broad distribution highlights the plant's ability to thrive in various ecological settings across the Atlantic and African landscapes.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Biological Activities

Compounds

Tecoma stans var. stans has emerged as a significant subject of pharmacological interest due to its potential antiviral properties. Through the biofractionation of trunk extracts, researchers successfully isolated a specific phenylethanoid glycoside known as crenatoside. This compound is a key chemical constituent found within the plant that demonstrates remarkable potency against the Zika virus. In laboratory testing, crenatoside exhibited much higher efficacy than the original ethanolic extracts and even outperformed the positive control, ribavirin. Consequently, the presence of crenatoside in this species marks it as a promising source for future antiviral drug development.

Conditions

Tecoma stans var. stans demonstrates significant potential in treating the Zika virus through its various ethanolic extracts. Research indicates that the leaves of this species exhibit notable antiviral activity when tested in vitro. Specifically, the trunk extract of the plant can be biofractionated to isolate a unique phenylethanoid glycoside known as crenatoside. This isolated compound proved to be highly effective, showing superior antiviral potency compared to the standard positive control, ribavirin. Consequently, the presence of crenatoside in Tecoma stans var. stans marks it as a promising source for developing Zika virus treatments.

Preparations

Parts used