Assegaai- Wood

Names and Synonyms

Common Names

• Assegaai- Wood
• Assegai Wood
• Assegai tree
• Assegai-Tree
• Cape Assegai Wood
• Cape lancewood
• Lance Wood

Scientific Names

Accepted name

Synonyms

• Junghansia faginea
• Sideroxylon dentatum
• Relhamia faginea
• Curtisia fagifolia
• Curtisia faginea

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae and the order Cornales, it is a member of the family Curtisiaceae. It is further categorized under the genus Curtisia, specifically as the species Curtisia dentata.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions of the African continent. Within South Tropical Africa, its presence is specifically noted in Mozambique and Zimbabwe. Moving into Southern Africa, the species can be found throughout the Cape Provinces. It is also established in the KwaZulu-Natal region of the south. Finally, the plant extends its range into the Free State, completing its documented distribution.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Curtisia dentata is characterized by its broad adaptability across diverse altitudinal gradients, allowing it to occupy various montane and submontane niches. This species demonstrates a significant vertical distribution, thriving in environments ranging from lowlands at a minimum elevation of 60 m AMSL to high-altitude habitats reaching a maximum of 3050 m AMSL. This extensive elevational range suggests that the plant is capable of enduring a wide spectrum of climatic conditions, including fluctuations in temperature, moisture availability, and atmospheric pressure associated with varying mountain profiles.

Elevational range max:

3050 m AMSL

Elevational range min:

60 m AMSL

Life history

The life history of Curtisia dentata is characterized by its classification as a perennial plant, ensuring its presence in the ecosystem over multiple growing seasons. In terms of its growth habit and structural architecture, it exhibits characteristics of both phanerophyte and nanophanerophyte life forms, indicating its ability to maintain its woody parts above the ground level through various developmental stages. Furthermore, this species maintains a consistent vegetative state as an evergreen, retaining its foliage throughout the year rather than undergoing a seasonal shedding process.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Curtisia dentata is characterized by a woody growth form, primarily manifesting as a tree. This species is a terrestrial plant that grows independently, functioning as a non-parasitic organism without being an epiphyte. In terms of stature, it is a substantial plant with a height that typically ranges from a minimum of 2 meters to a maximum of 20 meters, maintaining an average plant height of approximately 15 meters. Although it exhibits a self-supporting structure rather than acting as a vine or liana, its growth habit is firmly established as a self-supporting tree.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

20 m

Plant height mean:

15 m

Plant height min:

2 m

Woodiness :

woody

Physiology

The physiology of Curtisia dentata is characterized by a C3 photosynthetic pathway, meaning it utilizes the Calvin cycle for carbon fixation without the specialized adaptations found in C4 or CAM plants. This metabolic strategy implies that the plant performs gas exchange through stomata to intake carbon dioxide, typically functioning most efficiently in environments where moisture is sufficient to prevent excessive transpiration. Furthermore, this species does not function as a nitrogen fixer; it lacks the symbiotic relationship with nitrogen-fixing bacteria, such as rhizobia, required to convert atmospheric nitrogen into usable forms, and therefore relies on the uptake of nitrates or ammonium available within the soil substrate for its nutritional requirements.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Curtisia dentata is characterized by a complex set of reproductive mechanisms involving both biotic and abiotic factors. The plant utilizes an abiotic pollination syndrome, which serves as a primary driver for its reproductive cycle. Specifically, the pollination process is influenced by wind, indicating that anemophily plays a significant role in the transfer of pollen. Furthermore, the species demonstrates the capacity for self-fertilization, which is present as a reproductive strategy to ensure seed set. This combination of wind-driven abiotic pollination and the ability to self-fertilize allows the plant to maintain its population through various environmental conditions.

Pollination syndrome :

wind

Pollination syndrome :

abiotic

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Curtisia dentata has 2 reported plant parts identified across 5 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, stem.

Leaf

1. Life (Basel, Switzerland)
2. Heliyon
3. BMC complementary and alternative medicine
4. The Onderstepoort journal of veterinary research

Stem

1. Toxicology reports

Chemicals

Curtisia dentata has 13 reported phytochemicals identified across 5 scientific publications and several other databases. The most consistently reported chemicals include Lupeol, Ursolic acid, betulinic acid, 1-IODODODECANE, 2,6-Dimethoxybenzoquinone.

Lupeol

1. BMC complementary and alternative medicine
2. The Onderstepoort journal of veterinary research

Ursolic acid

1. BMC complementary and alternative medicine
2. The Onderstepoort journal of veterinary research

betulinic acid

1. BMC complementary and alternative medicine
2. The Onderstepoort journal of veterinary research

1-IODODODECANE

1. Toxicology reports

2,6-Dimethoxybenzoquinone

1. Toxicology reports

ANILINE

1. Toxicology reports

Flavonoid

1. International journal of molecular sciences

Saponins

1. International journal of molecular sciences

Steroids

1. International journal of molecular sciences

Tannins

1. International journal of molecular sciences

Activities

Curtisia dentata has 6 reported activities identified across 5 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Antibacterial, Anticancer, Antifungal, Bacteriostatic.

Antioxidant

1. Life (Basel, Switzerland)
2. Heliyon
3. International journal of molecular sciences

Antibacterial

1. BMC complementary and alternative medicine
2. International journal of molecular sciences

Anticancer

1. Life (Basel, Switzerland)

Antifungal

1. Heliyon

Bacteriostatic

1. BMC complementary and alternative medicine

Cytotoxic

1. BMC complementary and alternative medicine

Medicinal Uses

Curtisia dentata has 5 reported medicinal uses identified across 5 scientific publications and several other databases. The most consistently reported uses include cancer, sexually transmitted infections, Escherichia coli, diarrhea, tuberculosis.

Most Reported Uses

Preparations