Princewood

Names and Synonyms

Common Names

• Princewood

Scientific Names

Accepted name

Synonyms

• Exostema longicuspe
• Cinchona jamaicensis
• Cinchona herbacea
• Cinchona caribaea
• Cinchona caribbeana
• Exostema caribaeum var. velutinum
• Exostema caribaeum var. pubescens
• Exostema veraensis
• Cinchona racemosa

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. Following its subclass Magnoliidae, it is further organized under the order Gentianaales and the family Rubiaceae. Ultimately, it is identified by its specific genus, Exostema.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical range that extends from the Southeastern United States into various regions of Mexico. In the United States, its presence is primarily noted within the state of Florida. Moving into Mexico, the species is widely distributed across the central territories of the country. It can also be found throughout the northeastern and gulf regions of Mexico. Finally, the distribution extends further west into the southwestern portions of Mexico.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Exostema caribaeum is characterized by its status as a perennial organism, ensuring long-term survival within its ecosystem. In terms of its structural growth habit, the plant exhibits a phanerophyte life form, maintaining its photosynthetic organs on elevated branches above the ground level. While it can be classified under the nanophanerophyte category depending on the specific height of its woody stems, its primary development follows a robust woody structure. Furthermore, the plant maintains an evergreen deciduousness, meaning it retains its foliage throughout the year rather than shedding it seasonally, allowing for continuous metabolic activity.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Exostema caribaeum is characterized by its woody structure and diverse growth forms, ranging from a shrub to a tree. As a terrestrial species, it does not exhibit aquatic or epiphytic tendencies and functions as an independent organism rather than a parasite. In terms of its physical stature, the plant typically reaches a mean height of 5 m, though it is capable of growing up to a maximum height of 10 m. While it possesses the structural capacity to be self-supporting, it can also exhibit climbing characteristics, functioning as a self-supporting vine or liana depending on its developmental stage and environment.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height max:

10 m

Plant height mean:

5 m

Woodiness :

woody

Physiology

The physiology of Exostema caribaeum is characterized by a C3 photosynthetic pathway and a non-nitrogen-fixing biological nature. The plant exhibits significant structural investment in its foliage, with a mean Leaf Dry Matter Content (LDMC) of 364.95 mg/g, ranging from a minimum of 329.9 mg/g to a maximum of 400 mg/g. Its leaf morphology, as indicated by the Specific Leaf Area (SLA), shows a mean value of 152.575 cm²/g, with values fluctuating between a minimum of 122.5 cm²/g and a maximum of 220.1 cm²/g. Furthermore, the stem characteristics demonstrate a highly consistent Stem Specific Density (SSD), maintaining a constant mean, minimum, and maximum value of 850 mg/cm³.

Leaf dry matter content (LDMC) max:

400 mg/g

Leaf dry matter content (LDMC) mean:

364.95 mg/g

Leaf dry matter content (LDMC) min:

329.9 mg/g

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) max:

220.1 cm²/g

Specific Leaf Area (SLA) mean:

152.575 cm²/g

Specific Leaf Area (SLA) min:

122.5 cm²/g

Stem specific density (SSD) min:

850 mg/cm³

Reproduction

The reproduction of Exostema caribaeum is characterized by specific seed morphology and a distinct dispersal strategy. The plant produces seeds that are remarkably uniform in size and weight, with a recorded seed length of 0.88 mm (ranging from a minimum to a maximum of exactly 0.88 mm) and a consistent seed mass of 0.005 g. Regarding its dispersal syndrome, the species utilizes an autochorous mechanism, meaning it relies on its own internal processes to disperse its seeds.

Dispersal syndrome :

autochorous

Seed length mean:

0.88 mm

Seed mass mean:

0.005 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Exostema caribaeum has 4 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 4-phenylcoumarins, 5,3'-Dihydroxy-7,4'-dimethoxy-4-phenylcoumarin, 5,7,4'-Trimethoxy-4-phenylcoumarin, CHLOROGENIC ACID.

4-phenylcoumarins

1. Frontiers in pharmacology

5,3'-Dihydroxy-7,4'-dimethoxy-4-phenylcoumarin

1. Journal of natural products

5,7,4'-Trimethoxy-4-phenylcoumarin

1. Journal of natural products

CHLOROGENIC ACID

1. Frontiers in pharmacology

Medicinal Uses

Exostema caribaeum has 2 reported medicinal uses identified across 0 scientific publications and several other databases. The most consistently reported uses include Plasmodium falciparum, gastrointestinal disorders.

Most Reported Uses

Preparations