long-leaved bitter bark

Names and Synonyms

Common Names

• Long-leaved Bitter Bark

Scientific Names

Accepted name

Synonyms

• Petalostigma glabrescens
• Petalostigma quadriloculare var. glabrescens

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Malpighiales and the family Picrodendraceae. Finally, it is specifically identified by the genus Petalostigma, representing the species Petalosstigma triloculare.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known scientifically as Petalostigma triloculare, exhibits a specific range within the Australian continent. Its natural occurrence is primarily documented across two major states. Specifically, the species can be found growing within the regions of New South Wales. Additionally, its geographical footprint extends northward into Queensland. This distribution highlights the particular environmental preferences required for its survival in these areas.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Petalostigma triloculare is characterized by its classification as a phanerophyte, a life form defined by its ability to maintain its perennating buds well above the soil surface. Within the broader spectrum of its botanical growth strategies, it specifically functions as a phanerophyte, ensuring its survival through seasonal changes by protecting its regenerative structures on woody stems or elevated branches. This growth habit allows the plant to persist in its ecological niche, utilizing its elevated buds to navigate environmental stressors and establish a stable presence within its habitat.

Life form :

phanerophyte

Morphology

The morphology of Petalosstigma triloculare is characterized by a robust growth form, specifically classified as a tree. This woody species reaches a significant stature, with both its mean and maximum plant height recorded at approximately 15 m. As a terrestrial organism, it is neither aquatic nor an epiphyte, maintaining an independent existence without relying on other plants for sustenance, thus functioning as an independent non-parasite. Furthermore, the plant is self-supporting in its structural development, lacking the climbing habits of obligatory or facultative climbers.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

15 m

Woodiness :

woody

Physiology

The physiology of Petalosstigma triloculare is characterized by specific morphological dimensions of its foliage that facilitate its metabolic processes and environmental adaptation. The leaves exhibit a notable range in size, with a longitudinal expansion that varies from a minimum of 3 cm to a maximum of 9 cm in length. This variation in leaf length is accompanied by a corresponding breadth in the foliar structure, where the width ranges from a narrow minimum of 1 cm to a maximum of 3.5 cm. These structural parameters suggest a flexible physiological capacity to optimize surface area for light interception and gas exchange relative to its immediate microclimate.

Leaf length max:

9 cm

Leaf length min:

3 cm

Leaf width max:

3.5 cm

Leaf width min:

1 cm

Reproduction

The reproduction of Petalostigma triloculare is characterized by the production of specialized seeds that exhibit highly uniform physical dimensions. Analysis of its reproductive output reveals a remarkably consistent seed mass, with no variance observed across the sampled population. The seed mass maintains a constant mean value of 0.01905 g, a figure that is identical to both the maximum and minimum recorded mass of 0.01905 g. This lack of deviation in seed weight suggests a highly regulated developmental process during the maturation of the reproductive structures, ensuring that each seed produced by the plant adheres to this precise mass specification.

Seed mass mean:

0.01905 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Petalostigma triloculare has 4 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 2,2-Dimethoxybutane, 4-Methyl-1,3-dioxane, DECANE, acetic acid.

2,2-Dimethoxybutane

1. Pharmacognosy magazine

4-Methyl-1,3-dioxane

1. Pharmacognosy magazine

DECANE

1. Pharmacognosy magazine

acetic acid

1. Pharmacognosy magazine