Singapore graveyard flower

Names and Synonyms

Common Names

• Singapore white frangipani
• Singapore white plumeria
• White Frangipani
• great white frangipani

Scientific Names

Accepted name

Synonyms

• Plumeria obtusa var. sericifolia
• Plumeria tuberculata subsp. sericifolia
• Plumeria marchii
• Plumeria multiflora
• Plumeria nipensis
• Plumeria bahamensis
• Plumeria barahonensis
• Plumeria beatensis
• Plumeria hypoleuca
• Plumeria nivea
• Plumeria tenorei
• Plumeria versicolor
• Plumeria portoricensis
• Plumeria emarginata var. sericifolia
• Plumeria parvifolia
• Plumeria sericifolia
• Plumeria inaguensis
• Plumeria estrellensis
• Plumeria cuneifolia
• Plumeria confusa
• Plumeria casildensis
• Plumeria cayensis
• Plumeria bicolor
• Plumeria apiculata
• Plumeria ostenfeldii
• Plumeria obtusa var. laevis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant, Plumeria obtusata, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Gentianaales. Finally, it is a member of the family Apocynaceae and falls under the genus Plumeria.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a widespread geographical distribution across several distinct tropical and subtropical regions. In the Middle East, it can be found throughout the Gulf States of the Arabian Peninsula. Its presence in China is extensive, spanning the South-Central, Southeast, and Hainan regions. Furthermore, the species extends into the Southwestern Pacific, specifically inhabiting the Gilbert Islands. Together, these locations highlight the plant's ability to thrive in diverse maritime and continental environments.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Plumeria obtusa is characterized by its ability to thrive in diverse environments, most notably within the shaded and humid understories of a forest habitat. In these forest ecosystems, the plant benefits from the filtered sunlight and stabilized microclimates provided by the canopy, which helps maintain the moisture levels necessary for its succulent stems and lush foliage. While it can adapt to various tropical and subtropical settings, its presence in forest settings allows it to interact with a complex web of pollinators, such as hawkmoths, which are drawn to its fragrant blooms. The nutrient-rich leaf litter typical of forest floors provides a steady supply of organic matter, supporting the root systems of this species as it competes for space and resources within the stratified layers of the woodland.

Habitat :

forest

Life history

The life history of Plumeria obtusata is characterized by its status as a perennial plant, ensuring long-term survival through multiple growing seasons. In terms of its structural growth habits, the species exhibits characteristics of both phanerophytes, as it develops woody stems that elevate its photosynthetic organs well above the ground level, and nanophanerophytes, depending on the specific environmental conditions and the height of its terminal branches. This combination of life forms allows the plant to maintain a robust presence in its habitat, utilizing its perennial nature to endure seasonal changes while maintaining a complex architectural structure.

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Plumeria obtusata is characterized by a robust, woody growth form, functioning as a self-supporting tree rather than a climber, liana, or vine. As an independent organism, it does not exhibit parasitic behavior, maintaining a strictly terrestrial existence without any epiphytic tendencies, whether as a holoepiphyte or hemiepiphyte. Unlike aquatic or semiaquatic species, this plant is firmly terrestrial, utilizing its substantial woody structure to maintain an upright, tree-like stature in its natural habitat.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Plumeria obtusata is characterized by its specific metabolic and structural adaptations to its environment. The plant utilizes the C3 photosynthetic pathway, which involves the direct fixation of carbon dioxide through the Calvin cycle during daylight hours. In terms of its morphological water management, the species does not exhibit true succulence, meaning it lacks the specialized, hypertrophied water-storage tissues typically found in highly succulent taxa, instead relying on more standard woody and parenchymatous structures for its physiological stability.

Photosynthetic pathway :

C3

Succulence :

no

Reproduction

Reproduction in Plumeria obtusa is facilitated through both sexual and asexual mechanisms, with its sexual cycle heavily reliant on specialized dispersal strategies. The plant produces fragrant, tubular flowers designed to attract pollinators, typically moths or butterflies, which aid in cross-pollination. Following successful fertilization, the plant develops elongated, slender seed pods that eventually split open to release numerous small, lightweight seeds. These seeds exhibit an anemochorous dispersal syndrome, meaning they are primarily adapted for wind dispersal, utilizing their aerodynamic shape to travel significant distances from the parent plant. However, the reproductive potential of the species is also characterized by a multifaceted approach that can include elements of zoochorous and unspecialized dispersal patterns depending on environmental interactions, as well as the ability for vegetative propagation via stem cuttings, which allows for efficient clonal reproduction.

Dispersal syndrome :

anemochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Plumeria obtusa has 3 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include OLEANOLIC ACID, Ursolic acid, betulinic acid.

OLEANOLIC ACID

1. Anti-cancer agents in medicinal chemistry

Ursolic acid

1. Anti-cancer agents in medicinal chemistry

betulinic acid

1. Dr. Duke

Activities

Plumeria obtusa has 20 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Cytotoxic, Anthelmintic, AntiHIV, Antibacterial, Anticancer.

Cytotoxic

1. Dr. Duke
2. Anti-cancer agents in medicinal chemistry

Anthelmintic

1. Dr. Duke

AntiHIV

1. Dr. Duke

Antibacterial

1. Dr. Duke

Anticancer

1. Dr. Duke

Anticarcinogenic

1. Anti-cancer agents in medicinal chemistry

Anticarcinomic

1. Dr. Duke

Antiedemic

1. Dr. Duke

Antiinflammatory

1. Dr. Duke

Antileukemic

1. Dr. Duke

Medicinal Uses

Plumeria obtusa has 2 reported medicinal uses identified across 0 scientific publications and several other databases. The most consistently reported uses include diabetes mellitus, inflammation.

Most Reported Uses

Preparations