Ephedra gerardiana

Names and Synonyms

Scientific Names

Accepted name

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. It is further organized under the subclass Gnetidae and the order Ephedrales. Finally, it is a member of the family Ephedraceae and falls under the genus Ephedra.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution spanning across several distinct regions of Asia. In the northern reaches of its range, it can be found within the Siberian territories of Altai and Tuva. Moving southward, its presence extends into the Central Asian landscapes of Tajikistan. The species also inhabits parts of Western Asia, specifically within the borders of Afghanistan. Finally, its distribution reaches into the Qinghai province of China.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Ephedra gerardiana is defined by its specialized adaptation to high-altitude alpine and subalpine environments, where it thrives within a specific vertical niche. This species is predominantly found in montane and high-mountain ecosystems, occupying an elevational range that begins at 2,700 m AMSL and extends up to a maximum of 4,500 m AMSL. Within this altitudinal belt, the plant is adapted to survive the physiological stresses of low partial pressures of carbon dioxide, intense ultraviolet radiation, and extreme temperature fluctuations characteristic of high-elevation terrains. Its distribution is closely tied to these specific altitudinal gradients, which dictate the availability of moisture and the duration of the growing season in its rugged habitat.

Elevational range max:

4500 m AMSL

Elevational range min:

2700 m AMSL

Life history

The life history of Ephedra gerardiana is characterized by its classification as a chamaephyte, a life form that allows it to thrive in the harsh, high-altitude environments it inhabits. Within the specific nuances of its growth habit, it functions primarily as a chamaephyte, maintaining its photosynthetic organs close to the soil surface to minimize exposure to extreme temperature fluctuations and desiccating winds. This strategy of keeping much of its biomass near the ground level enables the species to endure periods of dormancy and environmental stress common in alpine or sub-alpine zones. As a perennial woody shrub, its life cycle involves a slow growth rate and a robust root system designed for stability and nutrient uptake in rocky or sandy substrates, ensuring long-term survival through seasonal shifts.

Life form :

chamaephyte

Morphology

The morphology of Ephedra gerardiana is characterized by a woody growth form, specifically presenting as a subshrub. It functions as an independent organism, neither acting as a parasite nor an epiphyte, as it maintains a terrestrial habit. Unlike climbing plants or lianas, it is a self-supporting species that does not exhibit vine or obligatory climbing behaviors.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Growth form :

subshrub

Parasite :

independent

Woodiness :

woody

Reproduction

Reproduction in Ephedra gerardiana is characterized by the production of specialized seeds that exhibit specific morphological and weight variations. The seed mass of this species is notably small, with a measured mean seed mass of 0.01592 g. Within the population, there is a measurable range of seed sizes, with the lightest recorded individuals possessing a seed mass of 0.00731 g, while the heaviest seeds reach a maximum mass of 0.02453 g. These variations in seed mass are critical factors in the plant's reproductive strategy and potential dispersal mechanisms.

Seed mass max:

0.02453 g

Seed mass mean:

0.01592 g

Seed mass min:

0.00731 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Ephedra gerardiana has 2 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root, stem.

Root

1. Evidence-based complementary and alternative medicine : eCAM

Stem

1. Evidence-based complementary and alternative medicine : eCAM

Chemicals

Ephedra gerardiana has 11 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include 10-nonacosanol, D-N-Methyl-pseudoephedrine, Ephedrine, Gallic acid, Saponins.

10-nonacosanol

1. Dr. Duke

D-N-Methyl-pseudoephedrine

1. Dr. Duke

Ephedrine

1. Dr. Duke

Gallic acid

1. Dr. Duke

Saponins

1. Dr. Duke

Tannins

1. Dr. Duke

Terpineol

1. Dr. Duke

catechins

1. Dr. Duke

d-Pseudoephedrine

1. Dr. Duke

ellagic acid

1. Dr. Duke

Activities

Ephedra gerardiana has 140 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antioxidant, ACE-Inhibitor, Abortifacient, Adrenergic.

Antibacterial

1. Dr. Duke
2. Evidence-based complementary and alternative medicine : eCAM

Antioxidant

1. Dr. Duke
2. Evidence-based complementary and alternative medicine : eCAM

ACE-Inhibitor

1. Dr. Duke

Abortifacient

1. Dr. Duke

Adrenergic

1. Dr. Duke

Aldose-Reductase-Inhibitor

1. Dr. Duke

Allergenic

1. Dr. Duke

Analgesic

1. Dr. Duke

Anesthetic

1. Dr. Duke

AntiGTF

1. Dr. Duke

Conditions

Ephedra gerardiana has 2 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include infectious disease, oxidative stresses.

Infectious disease

1. Evidence-based complementary and alternative medicine : eCAM

Oxidative stresses

1. Evidence-based complementary and alternative medicine : eCAM

Preparations

Ephedra gerardiana has 1 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include herb extracts.

Herb extracts

1. Natural product research