Ixora javanica

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Ixora stricta var. amoena
• Ixora amoena
• Ixora javanica var. retinervia
• Ixora javanica var. multinervia
• Pavetta javanica
• Ixora javanica var. grandiflora
• Ixora javanica var. paucinervia
• Ixora stricta var. blumeana
• Ixora stricta var. javanica
• Ixora stricta var. pubistyla

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 Gentianales, it is classified under the family Rubiaceae. Finally, it is identified by its genus, Ixora, as part of the species Ixora javanica.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical presence across several key regions in Asia. Within the Indian Subcontinent, its range extends from the country of Bangladesh to the mountainous areas of the East Himalaya. Moving into the Indo-China region, the species is well-established in the landscapes of Cambodia. It is also frequently found throughout the territory of Myanmar. Finally, its distribution continues southward into the tropical environments of Thailand.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Ixora javaica is characterized by its specific niche within lowland tropical environments, where it thrives within a precise altitudinal band. This species is predominantly found at relatively low elevations, occupying a specialized vertical range that begins at a minimum of 200 m AMSL and extends to a maximum of 300 m AMSL. This narrow elevational range suggests that the plant is adapted to the specific humidity, temperature profiles, and atmospheric pressures characteristic of these low-altitude tropical zones. Within these habitats, its distribution is closely tied to the environmental conditions found within this 100-meter elevational window, influencing its growth patterns and ecological interactions.

Elevational range max:

300 m AMSL

Elevational range min:

200 m AMSL

Life history

The life history of Ixora javaica is characterized by its status as a perennial plant, ensuring its continued presence in its natural habitat over many growing seasons. As a phanerophyte, it maintains its stem branches well above the ground, providing a robust structural framework for its growth. This growth habit is further classified under the nanophanerophyte life form, reflecting its specific stature and branching characteristics. Throughout its life cycle, the plant maintains an evergreen deciduousness, retaining its foliage year-round rather than shedding it seasonally, which allows for continuous physiological activity and stability within its ecosystem.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Ixora javanica is characterized by a woody growth form, primarily manifesting as a self-supporting shrub. It is a terrestrial plant that functions independently, as it is neither a parasite nor an epiphyte. In terms of its stature, the species exhibits significant vertical development, with a maximum plant height reaching up to 9 meters and a mean height recorded at approximately 10.5 meters. As a self-supporting shrub, it does not possess the climbing habits of a vine or liana, maintaining a sturdy, non-climbing structure.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

9 m

Plant height mean:

10.5 m

Woodiness :

woody

Physiology

The physiology of Ixora javanica is characterized by a complex metabolic framework geared toward efficient nutrient uptake and photosynthetic efficiency within tropical environments. As a member of the Rubiaceae family, its physiological processes are heavily dependent on high humidity and consistent moisture levels to maintain turgor pressure and facilitate transpiration. In terms of its nutrient cycling capabilities, the plant does not function as a nitrogen fixer; it lacks the specialized symbiotic relationship with nitrogen-fixing bacteria, such as Rhizobium, required to convert atmospheric nitrogen into bioavailable forms. Consequently, its physiological reliance on soil nitrogen is high, necessitating a robust root system capable of absorbing nitrates and ammonium from the substrate to support its rapid vegetative growth and the energetic demands of its seasonal flowering cycles. Its metabolic rate is closely tied to temperature and light intensity, driving the synthesis of secondary metabolites that serve both protective and medicinal functions within its tissues.

Nitrogen fixer :

no

Reproduction

Reproduction in Ixora javanica occurs through the production of seeds contained within fleshy fruit capsules, which are typically dispersed by various fauna. The reproductive efficiency is closely linked to the physical characteristics of the seeds produced during the fruiting stage. Based on botanical data, the seed mass of this species is highly consistent, exhibiting a mean value of 0.073 g. This uniformity is reflected in the recorded range, where both the maximum and minimum seed mass measurements are identical at 0.073 g, indicating a very low level of intra-specific variation in seed size for this specific parameter. This stability in seed mass suggests a standardized energetic investment by the parent plant into each individual offspring to facilitate successful germination and establishment.

Seed mass mean:

0.073 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Ixora javanica 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 flower.

Flower

1. Cancer letters

Chemicals

Ixora javanica has 2 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include caffeic acid, ferulic acid.

caffeic acid

1. Cancer letters

ferulic acid

1. Cancer letters

Preparations