Crepis rigescens

Names and Synonyms

Scientific Names

Accepted name

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta within the class Equisetopsida. It is further classified under the subclass Magnoliidae and the order Asterales. Finally, it resides in the family Asteraceae and is identified by the genus Crepis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical range concentrated within certain regions of Asia. In China, its presence is primarily documented in the South-Central part of the country. Additionally, the species extends its distribution into the Indo-China region. Specifically, it can be found growing within the borders of Myanmar. These locations represent the known habitats where this medicinal species occurs naturally.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Crepis rigescens is defined by its specialized niche within high-altitude environments, where it thrives under rigorous montane or alpine conditions. This species is strictly adapted to extreme vertical gradients, maintaining a presence across a specific altitudinal belt. Its distribution is characterized by a minimum elevation of 3,600 m AMSL, with a mean elevation of 3,300 m AMSL, and reaching a maximum elevation of 3,000 m AMSL. This specific elevational range indicates that the plant is a specialist of high-mountain ecosystems, likely occupying rocky slopes, alpine meadows, or scree habitats where it can withstand the physiological stresses associated with high-altitude climates.

Elevational range max:

3000 m AMSL

Elevational range mean:

3300 m AMSL

Elevational range min:

3600 m AMSL

Life history

The life history of Crepis rigescens is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. This lifecycle enables the species to establish a stable presence within its habitat, often utilizing stored energy in its root system to survive periods of dormancy or unfavorable environmental conditions. As a perennial, it does not rely on a single reproductive event to ensure species survival but instead can undergo repeated cycles of vegetative growth and flowering over several years. This long-term survival strategy provides the plant with greater resilience and the opportunity to optimize seed production during years when environmental conditions are most conducive to successful germination and recruitment.

Lifecycle :

perennial

Morphology

The morphology of Crepis rigescens is characterized by its stature as a non-woody herb, exhibiting a growth form consistent with a herbaceous plant. It is a self-supporting species that does not require climbing structures for support. In terms of dimension, the plant typically reaches a mean height of 0.4 m, though individual specimens can vary in size, ranging from a minimum height of 0.2 m to a maximum height of 0.6 m.

Climber :

self-supporting

Growth form :

herb

Plant height max:

0.6 m

Plant height mean:

0.4 m

Plant height min:

0.2 m

Woodiness :

non-woody

Physiology

The physiological architecture of Crepis rigescens is characterized by a significant degree of variability in its foliar dimensions, which plays a critical role in its metabolic and photosynthetic capacity. The leaves exhibit a diverse range of development, with lengths ranging from a minimum of 3 cm to a mean of 5.5 cm, reaching a maximum extent of 8 cm. This longitudinal variation is coupled with a distinct width profile, where leaf width spans from a minimum of 0.05 cm to a maximum of 0.5 cm. Such morphological plasticity in leaf surface area suggests an adaptive physiological mechanism for optimizing light interception and gas exchange within its specific ecological niche, balancing the requirements for carbon fixation against potential transpirational water loss.

Leaf length max:

8 cm

Leaf length mean:

5.5 cm

Leaf length min:

3 cm

Leaf width max:

0.5 cm

Leaf width min:

0.05 cm

Reproduction

Reproduction in Crepis rigescens is characterized by the production of specialized fruit structures that ensure the dispersal and propagation of the species. The reproductive output is defined by a highly consistent fruit morphology, where the fruit length exhibits no significant variation across the population. Specifically, the fruit length maintains a uniform measurement of 0.4 cm, as evidenced by a mean, minimum, and maximum value all strictly fixed at 0.4 cm. This precision in fruit size suggests a standardized developmental process during the maturation of the seeds, contributing to the plant's reproductive strategy.

Fruit length max:

0.4 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Crepis rigescens has 4 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include CHLOROGENIC ACID, Flavonoids, Friedelin, STIGMASTEROL.

CHLOROGENIC ACID

1. Mitochondrial DNA. Part B, Resources

Flavonoids

1. Mitochondrial DNA. Part B, Resources

Friedelin

1. Mitochondrial DNA. Part B, Resources

STIGMASTEROL

1. Mitochondrial DNA. Part B, Resources

Conditions

Crepis rigescens has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include cardiovascular disease.

Cardiovascular disease

1. Mitochondrial DNA. Part B, Resources