Saussurea tridactyla

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Theodorea tridactyla

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it is organized under the order Asterales and the family Asteraceae. It is specifically identified as a member of the genus Saussurea.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specialized geographical distribution primarily concentrated within high-altitude regions of Asia. In China, its presence is specifically noted within the elevated terrains of Tibet. Moving toward the Indian Subcontinent, the species can be found inhabiting the East Himalaya range. Additionally, the plant is distributed across the mountainous landscapes of Nepal. Together, these locations highlight its preference for the distinct ecological niches of the Himalayan belt.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Saussurea tridactyla is characterized by its specialized adaptation to high-altitude alpine environments, where it occupies a distinct niche within extreme montane ecosystems. This species is found within a specific vertical distribution, thriving at elevations that reflect a high degree of tolerance for harsh, hypoxic, and cold conditions. Its elevational range spans from a minimum of 4,200 m AMSL to a maximum of 5,500 m AMSL, with a mean elevation of approximately 4,725 m AMSL. Such a distribution indicates that the plant is a true high-alpine specialist, likely inhabiting rocky scree slopes, alpine meadows, or tundra-like habitats where the atmospheric pressure is low and the growing season is brief. The preference for these high-altitude zones suggests an evolutionary reliance on specific microclimatic conditions found only in the upper reaches of its mountainous habitat.

Elevational range max:

5500 m AMSL

Elevational range mean:

4725 m AMSL

Elevational range min:

4200 m AMSL

Life history

The life history of Saussurea tridactyla is characterized by its status as a perennial herb, meaning it completes its life cycle over multiple years rather than within a single growing season. As a long-lived species adapted to high-altitude environments, it maintains a persistent presence in its habitat through successive growing seasons. The plant typically follows a seasonal rhythm dictated by the harsh alpine climate, undergoing periods of vegetative growth and development during the warmer months, followed by dormancy during the winter. This perennial nature allows the plant to build significant energy reserves in its root system, which supports its reproductive efforts and survival through extreme environmental fluctuations.

Lifecycle :

perennial

Morphology

The morphology of Saussurea tridactyla is characterized by its growth form as a non-woody herb, specifically classified as a forb. It functions as a terrestrial plant, growing directly in the soil rather than as an epiphyte. Although it does not possess climbing structures, it is categorized as a self-supporting plant, maintaining its structure upright without the need for external support.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Woodiness :

non-woody

Physiology

The physiology of Saussurea tridactyla is characterized by specialized vegetative structures adapted to its environment, specifically regarding the dimensions of its foliage. The leaves exhibit a relatively narrow morphology, with a mean leaf width of 0.3 cm, ranging from a minimum of 0.2 cm to a maximum of 0.4 cm. In terms of longitudinal development, the leaf length shows significant variability, maintaining a mean length of 1.5 cm, while individual specimens fluctuate between a minimum length of 1 cm and a maximum length of 2 cm. These precise morphological measurements reflect the plant's structural investment in compact, narrow leaf surfaces.

Leaf length max:

2 cm

Leaf length mean:

1.5 cm

Leaf length min:

1 cm

Leaf width max:

0.4 cm

Leaf width mean:

0.3 cm

Leaf width min:

0.2 cm

Reproduction

The reproduction of Saussurea tridactyla culminates in the development of specialized fruit structures that are critical for its dispersal and propagation. The morphological characteristics of the fruit are highly consistent, exhibiting a precise uniformity in size. Specifically, the fruit length remains constant across all observed specimens, with a mean length of 0.7 cm. This stability is reflected in the minimum and maximum recorded measurements, both of which are exactly 0.7 cm, indicating a very narrow range of variation in this reproductive trait. This consistent fruit dimension is a defining feature of the plant's reproductive output, ensuring a standardized structure for its seed-bearing stage.

Fruit length max:

0.7 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Saussurea tridactyla has 6 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Apigenin 7-O-beta-D-glucoside, Apigenin 7-O-beta-D-rutinoside, Kaempferol 3-O-beta-D-glucoside, Luteolin 7-O-beta-D-glucoside, RUTIN.

Apigenin 7-O-beta-D-glucoside

1. Journal of chromatographic science

Apigenin 7-O-beta-D-rutinoside

1. Journal of chromatographic science

Kaempferol 3-O-beta-D-glucoside

1. Journal of chromatographic science

Luteolin 7-O-beta-D-glucoside

1. Journal of chromatographic science

RUTIN

1. Journal of chromatographic science

luteolin

1. Journal of chromatographic science