Paulownia fortunei

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a diverse geographical distribution spanning several distinct regions across Asia. Within China, it can be found throughout both the South-Central and Southeast territories. Its range extends into Eastern Asia, where it is specifically documented in Taiwan. In the Indo-China region, the species is present in Laos. Finally, its distribution reaches into Western Asia, specifically within Palestine.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Paulownia fortunei is characterized by its specific niche within montane environments, as it is predominantly found at high-altitude habitats. The species exhibits a highly specialized distribution pattern, with its elevational range strictly centered around a mean altitude of 2000 m AMSL. This ecological preference is remarkably consistent, as the plant's recorded elevational range spans from a minimum of 2000 m AMSL to a maximum of 2000 m AMSL, indicating a narrow vertical distribution within its preferred landscape. Such precise altitudinal requirements suggest that the species is adapted to the specific temperature regimes, atmospheric pressures, and moisture levels characteristic of these mid-to-high elevation zones.

Elevational range max:

2000 m AMSL

Life history

The life history of Paulownia fortunei is characterized by its status as a perennial species, capable of sustaining growth and structural development over multiple years. As a fast-growing woody plant, its developmental trajectory often begins with a rapid vegetative phase where it establishes a robust root system and significant biomass in a relatively short period. While its growth rate can be highly variable depending on environmental conditions such as light availability, soil moisture, and nutrient density, its perennial nature ensures that it undergoes seasonal cycles of maturation. Throughout its life cycle, the plant focuses on expanding its canopy and strengthening its trunk to support its large leaves, eventually transitioning into reproductive stages where it produces flowers and seeds to facilitate long-term survival and dispersal within its ecosystem.

Lifecycle :

perennial

Morphology

The morphology of Paulownia fortunei is characterized by its robust growth form as a tree, which can reach a significant plant height with a mean of approximately 30 m. As a woody species, it possesses a sturdy, lignified structure that supports its substantial stature. Unlike climbing plants, it is strictly self-supporting, lacking the traits of an obligatory or facultative climber, liana, or vine, and instead relies on its own structural integrity to maintain an upright habit.

Climber :

self-supporting

Growth form :

tree

Plant height mean:

30 m

Woodiness :

woody

Physiology

The physiology of Paulownia fortunei is characterized by specific structural and morphological parameters that reflect its growth dynamics and resource allocation strategies. A key indicator of its internal tissue composition is its stem specific density (SSD), which maintains a mean value of 311 mg/cm³. This measurement of SSD provides insight into the cellular density and mechanical strength of the woody tissues, influencing the plant's ability to support its rapid vertical development. Complementing its structural architecture, the foliage displays significant developmental characteristics, with a mean leaf length of 20 cm. This relatively large leaf surface area is indicative of a high capacity for light interception and photosynthetic efficiency, facilitating the rapid biomass accumulation typical of the species. Together, these physiological traits—the moderate density of the stem and the expansive dimensions of the leaves—underpin the plant's metabolic efficiency and its ability to thrive through rapid vegetative expansion.

Leaf length mean:

20 cm

Stem specific density (SSD) mean:

311 mg/cm³

Reproduction

The reproduction of Paulownia fortunei is characterized by the production of distinctive fruits and extremely lightweight seeds. The plant develops elongated, capsule-like fruits that typically exhibit an average length of 8 cm, though they can range from a minimum of 6 cm to a maximum length of 10 cm. Within these fruits, the seeds are produced in minute quantities, maintaining a highly consistent and minimal mass. The seed mass is recorded at a uniform value of 0.00027 g, with no variance observed between the minimum, mean, and maximum measurements, indicating a highly standardized seed weight essential for its dispersal mechanisms.

Fruit length max:

10 cm

Fruit length mean:

8 cm

Fruit length min:

6 cm

Seed mass mean:

0.00027 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Paulownia fortunei has 2 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include flower, leaf.

Flower

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
2. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Leaf

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Preparations

Paulownia fortunei has 3 reported preparations identified across 3 scientific publications and several other databases. The most consistently reported preparations include conventional powder, flowers, ultramicro powder.

Conventional powder

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Flowers

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

Ultramicro powder

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials