Pinus armandi

Names and Synonyms

Scientific Names

Accepted name

Taxonomical Classification

This plant, Pinus armandi, belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within the class Equisetopsida and subclass Pinidae, it follows the order Pinales and the family Pinaceae. Finally, it is categorized under the genus Pinus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is widely distributed across several key regions within China. It can be found growing in the provinces of China South-Central and China Southeast. Furthermore, its range extends northward into the regions of China North-Central and Inner Mongolia. The species also inhabits the high-altitude areas of Tibet. Collectively, these locations represent a broad geographical footprint for the species throughout the country.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pinus armandi is characterized by its specific adaptation to montane environments, where it occupies a defined vertical niche within mountain ecosystems. This species typically thrives within a specific altitudinal belt, maintaining a presence across an elevational range that begins at a minimum of 1700 m AMSL and extends to a maximum of 2600 m AMSL. Within this range, the plant's distribution is shaped by the interplay of temperature gradients and moisture availability typical of high-altitude temperate zones, allowing it to establish dominance in specific forest strata.

Elevational range max:

2600 m AMSL

Elevational range min:

1700 m AMSL

Life history

The life history of Pinus armandi is characterized by its status as a perennial species, allowing it to persist in its environment through multiple growing seasons. As a phanerophyte, its reproductive shoots are elevated well above the ground, typically on woody stems or branches, which is a defining structural trait of its life form. This plant maintains an evergreen deciduousness, meaning it retains its needle-like foliage throughout the year rather than shedding it seasonally. Its growth strategy as a phanerophyte ensures its survival and structural dominance within its ecological niche over a long-term lifecycle.

Deciduousness :

evergreen

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Pinus armandi is characterized by a growth form classified as a tree, exhibiting a robust and permanent structure. As a terrestrial organism, it does not inhabit aquatic or semiaquatic environments, nor does it function as an epiphyte, remaining firmly rooted in the soil. The plant is a self-supporting species, lacking any climbing, liana, or vine-like habits, and it grows independently without being an obligatory or facultative parasite on other organisms. Furthermore, its structural integrity is defined by its woody nature, providing the necessary strength for its tall, arborescent development.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Pinus armandi is characterized by a C3 photosynthetic pathway, which governs its carbon fixation processes. Its foliage is morphologically defined by a linear leaf form with entire margins, notably lacking both leaf thorns and leaf spines. In terms of leaf efficiency and structure, the plant exhibits a Specific Leaf Area (SLA) that ranges from a minimum of 83.59630419 cm²/g to a maximum of 91.82892794 cm²/g, with a mean value of 87.712616065 cm²/g. Furthermore, the structural integrity of its woody tissue is reflected in a mean stem specific density (SSD) of 476 mg/cm³.

Leaf form :

linear

Leaf margin :

entire

Leaf spines :

no

Leaf thorns :

no

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) max:

91.82892794 cm²/g

Specific Leaf Area (SLA) mean:

87.712616065 cm²/g

Specific Leaf Area (SLA) min:

83.59630419 cm²/g

Stem specific density (SSD) mean:

476 mg/cm³

Reproduction

Reproduction in Pinus armandi is a complex process involving wind-pollination and the development of woody cones to protect the maturing embryos. The reproductive success of the species is closely linked to the characteristics of its seeds, which exhibit significant morphological variation. Quantitatively, the seeds of Pinus armandi possess a mean seed mass of approximately 0.173463333 g. This mass fluctuates depending on environmental conditions and nutrient availability, with recorded values ranging from a minimum of 0.02857 g to a maximum of 0.28349 g. This variability in seed mass plays a crucial role in the dispersal capabilities and subsequent germination success of the species within its natural habitat.

Seed mass max:

0.28349 g

Seed mass mean:

0.173463333 g

Seed mass min:

0.02857 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Pinus armandi has 13 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 12-Hydroxyabietic acid, 15-hydroxydehydroabietic acid, 2,3-butanediol, BETA-SITOSTEROL, DEHYDROABIETIC ACID.

12-Hydroxyabietic acid

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

15-hydroxydehydroabietic acid

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

2,3-butanediol

1. Plant diversity

BETA-SITOSTEROL

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

DEHYDROABIETIC ACID

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Daucosterol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Fatty acids

1. Chemistry & biodiversity

Isodextropimaric acid

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Malondialdehyde

1. Frontiers in plant science

Nonacosan-10-ol

1. Chemistry & biodiversity

Conditions

Pinus armandi has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include Serratia marcescens.

Serratia marcescens

1. Chemistry & biodiversity