Cardiocrinum giganteum
Cardiocrinum giganteum · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Cardiocrinum giganteum is a magnificent perennial known for producing towering, bell-shaped white flowers. A critical aspect of its life cycle involves the management of its seeds to ensure successful propagation. These seeds often enter a period of seed dormancy, which serves as a natural mechanism to survive unfavorable environmental conditions. Understanding how to break this dormancy is essential for growers wishing to cultivate this impressive species from scratch. Consequently, mastering the specific requirements of the seed is the first step toward witnessing its grand botanical display.
- Synonyms
- Lilium Cordifolium Subsp. Giganteum · Lilium Giganteum
- Common names
- Not available
- Family
- Liliaceae
- Distribution
- Not available
- Plant Parts
- Seed
Classification
Common Names
Cardiocrinum giganteum is a magnificent species widely recognized by its English common name, the Giant Himalayan Lily. This striking plant is also known in German as the Himalaja-Riesenlilie, reflecting its impressive stature. In Chinese-speaking regions, it is frequently referred to as da bai he. Its grandeur is similarly celebrated in Swedish as the himalajanjättililja, while it is simply called jättelilja in some other contexts. Regardless of the language used, this lily remains a breathtaking marvel of the botanical world.
Sources: Catalogue of Life (COL)
Synonyms
Cardiocrinum giganteum is a remarkable plant that is often identified through various botanical classifications. Due to historical naming conventions, it is recognized by the synonym Lilium cordifolium subsp. giganteum. Researchers also frequently refer to the species as Lilium giganteum in different scientific contexts. These overlapping designations highlight the complex taxonomic history associated with the plant's identity. Understanding these relationships is essential for anyone studying its specific place within the floral kingdom.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Cardiocrinum giganteum is a remarkable botanical specimen that belongs to the kingdom Plantae. Within this vast biological realm, the plant is classified under the class Equisetopsida. It specifically resides in the order Liliales, showcasing its distinct evolutionary path. Further narrowing its identity, it is a member of the Liliaceae family. Ultimately, this magnificent species is defined by its placement within the genus Cardiocrinum.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Liliales |
| Family | Liliaceae |
| Genus | Cardiocrinum |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Cardiocrinum giganteum exhibits a diverse geographical range that spans across several key regions of Asia. Within the temperate zones of China, this plant can be found throughout the North-Central, South-Central, and Southeast territories. Its presence also extends into the unique high-altitude landscapes of Tibet. Beyond China, the species reaches into the tropical climates of the Indian Subcontinent, specifically within the Assam region. This widespread distribution highlights the plant's ability to adapt to various ecological niches across the continent.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Cardiocrinum giganteum is characterized as a self-supporting herb that maintains a distinct growth form. This plant is notably diminutive, typically reaching a maximum height of only 0.04 meters. Its stature is incredibly consistent, with a minimum height recorded at 0.035 meters. Furthermore, it frequently stabilizes at a specific minimum height of 0.0375 meters. Such precise physical dimensions highlight the unique botanical profile of this small species.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Compounds
Cardiocrinum giganteum is a unique perennial bulbous plant whose seed dormancy release is driven by complex hormonal and carbohydrate metabolic shifts. During the process of variable temperature stratification, the levels of the hormones gibberellin and trans-zeatin increase within the seeds. Simultaneously, the plant undergoes metabolic changes where the concentration of abscisic acid decreases to facilitate germination. This physiological transition is further supported by the mobilization of energy reserves, specifically through the reduction of starch. As these reserves are processed, there is a corresponding increase in glucose content to fuel embryo development.
Conditions
Cardiocrinum giganteum utilizes variable temperature stratification as a primary method to treat and release its prolonged seed dormancy. This stratification process significantly improves embryo development and can reduce the dormancy period from eighteen months down to just seven months. The treatment works by regulating specific hormonal shifts, specifically increasing levels of gibberellin and trans-zeatin while decreasing abscisic acid. Additionally, the process triggers changes in carbohydrate metabolism, such as increasing glucose content and altering starch levels. Ultimately, these metabolic and hormonal shifts are driven by key hub genes and transcription factors involved in glycolysis and the tricarboxylic acid cycle.
Preparations
Parts used
Cardiocrinum giganteum is a valuable perennial herbaceous plant endemic to East Asia, prized for its ornamental, edible, and medicinal qualities. However, the development of this species is significantly hindered by a lengthy 17 to 18-month dormancy period in its seed. Recent research indicates that applying variable temperature stratification can effectively shorten this dormancy period to just seven months. This process triggers crucial physiological changes, specifically regulating hormone levels and carbohydrate metabolism to promote embryo development. By understanding these molecular mechanisms, scientists can improve the germination rates and overall utilization of this scarce resource.