catharanthus
Noun 1. A genus of flowering plants: Catharanthus is a small genus of herbaceous plants in the dogbane family (Apocynaceae). These plants are native to Madagascar but are now cultivated and naturalized in tropical and subtropical regions worldwide. 2. Botanical classification: It refers specifically to the taxonomic genus that includes several species, most notably the Madagascar periwinkle (Catharanthus roseus).
- , is now correctly placed in the genus Catharanthus.*
- In botanical nomenclature: The genus name is always capitalized and italicized in scientific writing.
- The study focused on the phylogeny of Catharanthus.
- In horticulture: Used to specify plants belonging to this particular genus, often for clarity versus the similar-looking (periwinkle).
- For full sun and heat tolerance, choose a Catharanthus cultivar.
- Catharanthus roseus (n): The most common species, known as the Madagascar periwinkle, rosy periwinkle, or annual vinca. It is important both ornamentally and for producing vinca alkaloids used in medicine.
- Vinca (n): A related but distinct genus of plants, commonly called periwinkle. was formerly included in this genus.
- Madagascar periwinkle (common name for )
- Rosy periwinkle (common name for )
- Annual vinca (a common horticultural name, though it is not a true )
The word catharanthus has a very specific, technical meaning limited to botanical science and informed gardening. It is not used in everyday conversation. Its primary significance lies in: 1. Scientific Classification: Denoting a specific genus of plants. 2. Medical Context: Several species, especially Catharanthus roseus, are sources of important chemotherapy drugs (e.g., vinblastine, vincristine).
- small genus of erect annual or perennial herbs native to Madagascar; widely naturalized in the tropics; formerly included in genus Vinca