Rheum spiciforme

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Rheum aplostachyum
• Rheum crassinervium
• Rheum rhizostachyum
• Rheum scaberrimum
• Rheum reticulatum

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. Under the subclass Magnoliidae, it falls into the order Caryophyllales and the family Polygonaceae. Finally, it is categorized under the genus Rheum as the species Rheum spiciforme.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide geographical distribution across several key regions of Asia. Within Central Asia, it can be found growing in the territories of Kazakhstan, Kirgizstan, and Tadzhikistan. Its presence extends into Western Asia, specifically within the borders of Afghanistan. Additionally, the species is documented in the eastern part of the continent in China, specifically in the Qinghai province. Together, these locations highlight the plant's ability to thrive in diverse mountainous landscapes.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Rheum spiciforme is defined by its preference for high-altitude alpine environments, where it thrives across a significant vertical gradient. This species is typically found at elevations ranging from a minimum of 2,600 m AMSL to a maximum of 5,000 m AMSL, maintaining an average elevation of approximately 3,816.67 m AMSL. Its specialized habitat consists primarily of sandy and stony places, suggesting an adaptation to well-draining, rocky substrates characteristic of montane or subalpine terrains.

Elevational range max:

5000 m AMSL

Elevational range mean:

3816.66666666667 m AMSL

Elevational range min:

2600 m AMSL

Habitat :

sand, stony places

Life history

The life history of Rheum spiciforme is characterized by its status as a perennial plant, meaning it lives for more than two years and undergoes multiple growth cycles throughout its existence. As a perennial species, it establishes a robust root system that allows it to persist through varying seasonal conditions, storing energy to support regrowth in subsequent growing seasons. This long-term survival strategy enables the plant to reach maturity and participate in reproductive cycles over several years, rather than completing its entire life cycle in a single season as seen in annuals. Its developmental pattern is integrated into its specific habitat, where it relies on the accumulation of nutrients over time to sustain its structural growth and eventual flowering phases.

Lifecycle :

perennial

Morphology

The morphology of Rheum spiciforme is characterized by a herbaceous growth form, functioning as both a herb and a forb. It is a non-woody, self-supporting plant that does not exhibit climbing habits, such as lianas or vines, nor does it function as a parasite, maintaining an independent life cycle. The plant is terrestrial in nature, rather than aquatic or epiphytic, and typically reaches an average height of approximately 0.3 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height mean:

0.3 m

Woodiness :

non-woody

Physiology

The physiological architecture of Rheum spiciforme is characterized by significant morphological variability in its foliar structures, which play a critical role in its metabolic processes. The leaf dimensions exhibit a broad range of development, with leaf lengths spanning from a minimum of 5 cm to a maximum of 25 cm, maintaining a mean length of approximately 15 cm. Complementing this longitudinal variation, the leaf width fluctuates between a minimum of 5 cm and a maximum of 22 cm, facilitating an adaptive surface area for photosynthetic efficiency. These dimensional parameters suggest a highly plastic growth habit, allowing the plant to optimize light interception and gas exchange according to its specific environmental conditions.

Leaf length max:

25 cm

Leaf length mean:

15 cm

Leaf length min:

5 cm

Leaf width max:

22 cm

Leaf width min:

5 cm

Reproduction

The reproduction of Rheum spiciforme is characterized by a specific flowering phenology and the development of distinct fruiting bodies. The flowering period typically concludes in June, though the timing can be variable depending on environmental conditions. Following pollination, the plant produces fruits that exhibit measurable morphological variations. These fruits have a mean length of approximately 0.92 cm, with individual specimens ranging from a minimum of 0.75 cm to a maximum of 1.1 cm. Similarly, the fruit width varies, maintaining a mean of approximately 0.77 cm, with a minimum width of 0.7 cm and a maximum width reaching 0.9 cm.

Flowering time :

Jun

Fruit length max:

1.1 cm

Fruit length mean:

0.916666666666667 cm

Fruit length min:

0.75 cm

Fruit width max:

0.9 cm

Fruit width mean:

0.766666666666667 cm

Fruit width min:

0.7 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Rheum spiciforme has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root.

Root

1. Plants (Basel, Switzerland)

Chemicals

Rheum spiciforme has 1 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Turmeric.

Turmeric

1. Plants (Basel, Switzerland)

Preparations

Rheum spiciforme has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include crushed into powder.

Crushed into powder

1. Plants (Basel, Switzerland)