temple juniper

Names and Synonyms

Common Names

• Needle Juniper
• Temple Juniper

Scientific Names

Accepted name

Synonyms

• Juniperus coreana var. rigida

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, specifically categorized within the class Equisetopsida and subclass Pinidae. Following the order Pinales, it is classified under the family Cupressaceae. Finally, it is identified by its genus, Juniperus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical range across several distinct regions of East Asia. In the Russian Far East, its presence is specifically noted in the areas of Primorye and Sakhalin. Moving into China, the species can be found within the territories of Inner Mongolia and Manchuria. Additionally, the distribution extends into the China North-Central region. Together, these locations highlight the plant's ability to thrive in diverse northern and central habitats.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Juniperus rigida is characterized by its specialized adaptation to coastal and arid environments, where it primarily colonizes unstable substrates such as dunes and sand. In these habitats, the species plays a crucial role in stabilizing shifting sandy soils, utilizing its root systems to anchor itself against wind erosion and salt spray. Thriving in nutrient-poor, well-drained sandy terrains, the plant is highly resilient to the physiological stresses associated with high salinity and intense solar radiation typical of dune ecosystems. Its presence is often indicative of pioneer or transitional stages in coastal succession, where it must navigate the challenges of limited water retention in the sand while providing essential cover and structural complexity for local fauna.

Habitat :

dunes, sand

Life history

The life history of Juniperus rigida is characterized by its status as a perennial organism, ensuring long-term survival through multiple growing seasons. In terms of its structural growth habit, the species is classified as a chamaephyte, a life form where the permanent shoots are located close to the soil surface, often protected by the ground or leaf litter. This specific developmental strategy allows the plant to thrive within its ecological niche, maintaining its physiological functions over an extended lifespan.

Life form :

chamaephyte

Lifecycle :

perennial

Morphology

The morphology of Juniperus rigida is characterized by a woody growth form, specifically manifesting as a shrub. It is a self-supporting plant that does not function as a climber or a vine, and it operates as an independent organism rather than a parasite. As a terrestrial species, it is not aquatic or epiphytic. In terms of its physical dimensions, the plant exhibits significant variation in size; while the mean height is recorded at 0.61 m, individual specimens can range from a minimum height of 1 m to a maximum height of 8 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

8 m

Plant height mean:

0.61 m

Plant height min:

1 m

Woodiness :

woody

Physiology

The physiology of Juniperus rigida is characterized by specialized adaptations to high-altitude and semi-arid environments, primarily defined by its use of the C3 photosynthetic pathway. As a C3 plant, it fixes carbon dioxide through the Calvin cycle using the enzyme RuBisCO, which is a common metabolic strategy among gymnosperms but requires efficient water management to minimize photorespiration under intense solar radiation. To compensate for the inherent water loss associated with C3 gas exchange, the plant exhibits xerophytic physiological traits, such as thick, sclerophyllous needle-like leaves with a reduced surface-area-to-volume ratio. These needles are equipped with a robust cuticle and sunken stomata, which serve to regulate transpiration and maintain cellular turgor during periods of physiological drought. Furthermore, its physiological resilience is bolstered by a sophisticated hydraulic architecture capable of managing high xylem tension, allowing it to sustain metabolic processes and carbon assimilation even in the fluctuating thermal conditions of its montane habitats.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Juniperus rigida is characterized by the production of specialized seeds that play a critical role in its life cycle and dispersal mechanisms. Based on empirical data, the seeds produced by this species exhibit a very consistent and narrow mass range, indicating a highly standardized reproductive output. The average seed mass is measured at 0.01507 g, with a maximum recorded mass of 0.01502 g and a minimum mass of 0.01502 g. This minimal variation in seed size suggests a stable energetic investment per individual seed, which is an important factor in the plant's ability to colonize suitable habitats within its ecological niche.

Seed mass max:

0.01502 g

Seed mass mean:

0.01507 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Juniperus rigida 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 fruit, leaf.

Fruit

1. Journal of ethnopharmacology

Leaf

1. Journal of enzyme inhibition and medicinal chemistry

Chemicals

Juniperus rigida has 10 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Amentoflavone, (+)-catechin, CATECHIN, CHLOROGENIC ACID, Cupressuflavone.

Amentoflavone

1. Journal of enzyme inhibition and medicinal chemistry
2. Frontiers in pharmacology

(+)-catechin

1. Journal of enzyme inhibition and medicinal chemistry

CATECHIN

1. Frontiers in pharmacology

CHLOROGENIC ACID

1. Frontiers in pharmacology

Cupressuflavone

1. Journal of ethnopharmacology

Hinokiflavone

1. Journal of ethnopharmacology

Podocarpusflavone A

1. Journal of ethnopharmacology

RUTIN

1. Plant physiology and biochemistry : PPB

podophyllotoxin

1. Frontiers in pharmacology

quercitrin

1. Plant physiology and biochemistry : PPB

Activities

Juniperus rigida has 2 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antioxidant.

Antibacterial

1. Frontiers in pharmacology

Antioxidant

1. Frontiers in pharmacology

Conditions

Juniperus rigida has 6 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include Inflammation, atopic dermatitis, dropsy, gout, neuralgia.

Inflammation

1. Journal of enzyme inhibition and medicinal chemistry

Atopic dermatitis

1. Journal of ethnopharmacology

Dropsy

1. Journal of ethnopharmacology

Gout

1. Journal of ethnopharmacology

Neuralgia

1. Journal of ethnopharmacology

Rheumatoid arthritis

1. Journal of ethnopharmacology