Crotalaria paulina
Crotalaria paulina · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Crotalaria paulina is a distinctive botanical species recognized for its unique structural characteristics and growth patterns. Among its most notable features is the production of specialized seeds that play a vital role in its reproductive cycle. These seeds often serve as a key identifier for botanists studying the diverse genus of rattlepods. Understanding the development and dispersal of the seed is essential for grasping the plant's ecological impact. This introductory overview explores the fundamental biological traits that define this fascinating specimen.
- Synonyms
- Crotalaria Racemosa · Crotalaria Urbaniana · 2 more
- Common names
- Not available
- Family
- Fabaceae
- Distribution
- Not available
- Plant Parts
- Seed
Classification
Common Names
Crotalaria paulina is a unique botanical specimen frequently recognized by its evocative common name, the rattlebox. This name stems from the distinctive sound produced by its dried seed pods as they knock together in the wind. Beyond its auditory charm, the plant is celebrated for its vibrant yellow blooms that attract various pollinators to the landscape. Gardeners often seek out this species for its ability to add both texture and movement to a sunny garden bed. Understanding its identity through its common name helps enthusiasts connect more deeply with its rhythmic presence in nature.
Sources: Catalogue of Life (COL)
Synonyms
Crotalaria paulina is a botanical species that has been classified under several different names throughout its taxonomic history. Scientific literature identifies several synonyms for this plant, including the name Crotalaria bracteosa. It is also frequently referred to in older texts as Crotalaria erecta or Crotalaria racemosa. Furthermore, the designation Crotalaria urbaniana serves as another recognized synonym within its botanical record. Understanding these various nomenclatural relationships is essential for accurate identification and research.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Crotalaria paulina is a unique species that belongs to the diverse kingdom Plantae. Within this vast realm, it is classified under the class Equisetopsida. The plant is further organized into the order Fabales, which connects it to many other significant botanical groups. It specifically falls under the family Fabaceae, a group well known for its nitrogen-fixing capabilities. Finally, it is identified by its distinct genus, Crotalaria, which defines its specific biological identity.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Crotalaria |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Crotalaria paulina exhibits a wide geographic range that spans across two major continents. In Africa, this species is established within various tropical regions, including Kenya in East Tropical Africa and Ethiopia in the Northeast. Its presence extends further south into the African continent, specifically within the borders of Zimbabwe. Moving across the Atlantic, the plant also flourishes in South America throughout the diverse landscapes of Brazil. This distribution encompasses both the northeastern and southern territories of the Brazilian nation.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Crotalaria paulina grows in a sturdy shrub form that allows it to thrive in various environments. As a self-supporting species, it maintains its structure without the need for external assistance.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Compounds
Conditions
Preparations
Parts used
Crotalaria paulina seeds serve as a critical source for the isolation and characterization of a unique trypsin inhibitor known as CPTI. Researchers have successfully purified this protein through advanced methods, including gel filtration and reversed-phase HPLC. The resulting single polypeptide chain possesses a molecular mass of 20 kDa and a distinct isoelectric point of 4.0. Detailed amino acid analysis reveals a high concentration of leucine, serine, and glycine within its 177 residues. These findings strongly indicate that the inhibitor derived from the plant seeds belongs to the Kunitz-type family.