Carya illinoensis

Names and Synonyms

Common Names

• pecan-nut
• hardy pecan
• nogal morado
• nuez encarcelada
• nuez pecana
• softshell hickory
• sweet pecan

Scientific Names

Accepted name

Synonyms

• Carya pecan
• Juglans alba var. pacana
• Juglans rubra
• Juglans cylindrica
• Juglans oliviformis
• Juglans pecan
• Juglans illinoinensis
• Hicorius oliviformis
• Hicorius diguetii
• Hicorius pecan
• Carya diguetii
• Carya angustifolia
• Juglans angustifolia
• Carya pecan
• Carya tetraptera
• Carya oliviformis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Fagales, it is classified under the family Juglandaceae. Its specific taxonomic placement is defined by the genus Carya.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution spanning several distinct regions across Asia and Europe. In Central Asia, its presence can be identified specifically within Tajikistan. The species also extends into the Caucasus, inhabiting both the North Caucasus and the Transcaucasus regions. Furthermore, it is found in Western Asia, notably on the island of Cyprus. Finally, its range reaches into China, where it is documented in Southeast China.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Carya illinoinensis is characterized by its preference for well-drained, fertile soils within deciduous forest ecosystems, where it often acts as a mid-canopy component. It thrives in diverse habitats ranging from rich bottomlands to upland slopes, frequently coexisting with other hardwood species in mesic environments. This species is adapted to a wide variety of climatic conditions across its native range, demonstrating significant versatility in its establishment. Specifically, its vertical distribution is found at relatively low altitudes, with an elevational range spanning from a minimum of 0 m AMSL to a maximum of 200 m AMSL. This low-elevation preference suggests an ecological niche optimized for temperate lowland forests where moisture availability and soil depth support its robust growth and nut production.

Elevational range max:

200 m AMSL

Elevational range min:

0 m AMSL

Life history

The life history of Carya illinoinensis is characterized by its status as a perennial species, meaning it lives for many years and undergoes seasonal cycles of growth and dormancy. As a long-lived deciduous tree, its development begins with the germination of its large, nut-like seeds, which require specific moisture and temperature conditions to establish a root system. Throughout its extensive lifespan, the plant follows a predictable phenological pattern, including the emergence of compound leaves in the spring, the development of inconspicuous flowers in late spring or early summer, and the maturation of heavy, drupaceous fruits by autumn. The tree invests significant energy into a robust woody structure and a deep root system to sustain itself through various environmental stressors and seasonal shifts. Over many years, it reaches maturity, contributing to the forest canopy and playing a vital role in its ecosystem through its continuous reproductive cycles and long-term presence in the landscape.

Lifecycle :

perennial

Morphology

The morphology of Carya illinoinensis is characterized by a large, woody growth form, specifically classified as a tree. It is a self-supporting, non-climbing species that exhibits an independent life strategy, functioning neither as a parasite nor as an epiphyte, as it maintains a strictly terrestrial existence. The plant reaches significant dimensions in the forest canopy, with an average height of approximately 48.98 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

48.98 m

Woodiness :

woody

Physiology

The physiology of Carya illinoinensis is characterized by a robust metabolic framework optimized for temperate environments, primarily utilizing the C3 photosynthetic pathway to fix atmospheric carbon dioxide. Through this C3 mechanism, the plant utilizes the enzyme RuBisCO to incorporate CO2 into organic molecules during the Calvin cycle, a process that is highly efficient under the moderate temperatures and consistent moisture levels typically found in its native habitats. This photosynthetic strategy supports the significant energy demands required for its extensive woody growth and the development of energy-dense nut production. Complementing its carbon fixation, the plant exhibits complex water relations and nutrient uptake mechanisms designed to sustain its large canopy and deep root systems, ensuring efficient transpiration and nutrient transport to support its long-term perennial life cycle.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Carya illinoinensis is characterized by a specific seasonal flowering cycle and specialized seed characteristics. The flowering period typically begins in March and concludes in April, though the timing can be variable across different environments. Following successful pollination, the plant produces seeds with a notable mass profile; the mean seed mass is approximately 3.92 g, with individual seeds ranging from a minimum of 3.125 g to a maximum of 4.6535 g. Regarding the movement of its offspring, the plant utilizes a zoochorous dispersal syndrome, relying on animals to facilitate the spread of its seeds to new locations.

Dispersal syndrome :

zoochorous

Flowering time :

Mar

Flowering time :

Apr

Seed mass max:

4.6535 g

Seed mass mean:

3.924311111 g

Seed mass min:

3.125 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Carya illinoinensis 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 leaf.

Leaf

1. Heliyon

Chemicals

Carya illinoinensis has 4 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Ellagitannins, Tannins, ellagic acid pentose, flavonols.

Ellagitannins

1. Food science & nutrition

Tannins

1. Food science & nutrition

ellagic acid pentose

1. Food science & nutrition

flavonols

1. Food science & nutrition

Conditions

Carya illinoinensis has 1 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include alcoholic liver disease.

Alcoholic liver disease

1. Current drug metabolism

Preparations

Carya illinoinensis has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include leaf extract.

Leaf extract

1. Heliyon