Blue guarri

Euclea crispa · Accepted scientific name

Scientific literature: Very Sparse (20 studies) · ★☆☆☆☆

Blue guarri, scientifically known as Euclea crispa, is a versatile evergreen shrub native to Southern Africa. Renowned for its medicinal properties, this plant is widely utilized in traditional healing to treat various ailments, including skin infections, digestive issues, and inflammation, making it a significant botanical resource in ethnobotany.

Family
Ebenaceae
Native range
Africa
Parts used
Leaf
Common names
Blue Guarri · Blue Leaved Euclea · 1 more
Scientific synonyms
Celastrus Crispus

Names and Synonyms

Common Names

Scientific Names

Accepted name

Euclea crispa

Synonyms

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is further classified under the subclass Magnoliidae and the order Ericales. Finally, it is a member of the family Ebenaceae and is situated within the genus Euclea.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Ericales
Family Ebenaceae
Genus Euclea

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, Euclea crispa, exhibits a specific geographical distribution throughout the South Tropical Africa region. It can be found growing within the borders of Angola, where it thrives in local ecosystems. The species also extends its range into Malawi, contributing to the area's floral diversity. Furthermore, its presence is well-documented across Mozambique and Zambia. Finally, the distribution of this medicinal plant reaches into Zimbabwe, completing its regional footprint.

Region Area
South Tropical Africa Angola
South Tropical Africa Malawi
South Tropical Africa Mozambique
South Tropical Africa Zambia
South Tropical Africa Zimbabwe
Southern Africa Botswana
Southern Africa Cape Provinces
Southern Africa Lesotho
Southern Africa KwaZulu-Natal
Southern Africa Free State

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Euclea crispa is characterized by its prevalence within forest ecosystems, where it thrives under various canopy conditions. This species exhibits a broad altitudinal distribution, demonstrating significant adaptability to diverse topographic gradients. It can be found inhabiting environments ranging from low-lying areas at an elevation of 45 m AMSL to much higher montane regions, reaching a maximum elevation of 2200 m AMSL.

Elevational range max:
2200 m AMSL
Elevational range min:
45 m AMSL
Habitat :
forest

Life history

The life history of Euclea crispa is characterized by a perennial lifecycle, allowing the plant to persist in its habitat over many growing seasons. As a phanerophyte, it maintains its stem system above the ground, typically developing into a woody shrub or small tree. Its growth habit is further categorized as a nanophanerophyte, reflecting its structural scale within its ecosystem. Throughout its existence, the plant exhibits an evergreen deciduousness, meaning it retains its foliage year-round rather than shedding all its leaves seasonally.

Deciduousness :
evergreen
Life form :
nanophanerophyte
Life form :
phanerophyte
Lifecycle :
perennial

Morphology

The morphology of Euclea crispa is characterized by its growth form as a woody shrub, exhibiting a self-supporting structure rather than acting as a climber or vine. As a terrestrial species, it does not exhibit aquatic or epiphytic tendencies and functions as an independent organism without parasitic behavior. The plant displays significant variation in size, with heights ranging from a minimum of 0.3 m to a maximum of 9 m, maintaining a mean height of approximately 6.5 m.

Aquatic :
terrestrial
Climber :
self-supporting
Epiphyte :
terrestrial
Growth form :
shrub
Parasite :
independent
Plant height max:
9 m
Plant height mean:
6.5 m
Plant height min:
0.3 m
Woodiness :
woody

Physiology

The physiology of Euclea crispa is characterized by its complex metabolic processes and specific nutritional strategies within its ecosystem. As a woody shrub or small tree, its physiological framework focuses on efficient resource acquisition and structural integrity through secondary metabolite production. Regarding its nutrient cycling capabilities, the plant is not a nitrogen fixer; it does not possess the symbiotic relationship with nitrogen-fixing bacteria required to convert atmospheric nitrogen into bioavailable forms, meaning its nitrogen uptake is entirely dependent on the availability of nitrates or ammonium in the soil. Its metabolic activity involves the synthesis of various bioactive compounds, including tannins and glycosides, which serve physiological roles in defense against herbivory and environmental stressors. Furthermore, its photosynthetic efficiency and transpiration rates are adapted to its specific habitat, allowing it to maintain water balance and energy production through regulated stomatal conductance and robust cellular respiration.

Nitrogen fixer :
no

Reproduction

The reproduction of Euclea crispa is characterized by specific reproductive strategies and seed morphological traits. In terms of its breeding system, the plant exhibits a lack of self-fertilization, as the trait for self-fertilization is documented as absent, suggesting a reliance on cross-pollination mechanisms to ensure genetic diversity. The resulting seeds demonstrate a relatively consistent mass profile; the mean seed mass is recorded at 0.12144 g. Individual seed weights show slight variations, ranging from a minimum mass of 0.10818 g to a maximum mass of 0.1347 g.

Seed mass max:
0.1347 g
Seed mass mean:
0.12144 g
Seed mass min:
0.10818 g
Self fertilization :
absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Euclea crispa 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 leaf.

Plant parts reported in Euclea crispa
Plant part Supporting sources Consensus
Leaf 1 supporting sources ★☆☆☆☆

Leaf

  1. Journal of pharmacy & bioallied sciences

Chemicals

Euclea crispa has 4 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include 6-(4,6-DIOXO-1,4,5,6-TETRAHYDROPYRIMIDIN-2-YL-AMINO)HEXANOIC ACID TRIFLUOROACETATE, Betulin, hydrocortisone acetate, phenyl glucuronide.

Chemicals reported in Euclea crispa
Chemical Supporting sources Consensus
6-(4,6-DIOXO-1,4,5,6-TETRAHYDROPYRIMIDIN-2-YL-AMINO)HEXANOIC ACID TRIFLUOROACETATE 1 supporting sources ★☆☆☆☆
Betulin 1 supporting sources ★☆☆☆☆
hydrocortisone acetate 1 supporting sources ★☆☆☆☆
phenyl glucuronide 1 supporting sources ★☆☆☆☆

6-(4,6-DIOXO-1,4,5,6-TETRAHYDROPYRIMIDIN-2-YL-AMINO)HEXANOIC ACID TRIFLUOROACETATE

  1. Journal of pharmacy & bioallied sciences

Betulin

  1. Dr. Duke

hydrocortisone acetate

  1. Journal of pharmacy & bioallied sciences

phenyl glucuronide

  1. Journal of pharmacy & bioallied sciences

Activities

Euclea crispa has 12 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include AntiHIV, Anticarcinomic, Antifeedant, Antiflu, Antiinflammatory.

Activities reported in Euclea crispa
Activity Supporting sources Consensus
AntiHIV 1 supporting sources ★☆☆☆☆
Anticarcinomic 1 supporting sources ★☆☆☆☆
Antifeedant 1 supporting sources ★☆☆☆☆
Antiflu 1 supporting sources ★☆☆☆☆
Antiinflammatory 1 supporting sources ★☆☆☆☆
Antitumor 1 supporting sources ★☆☆☆☆
Antiviral 1 supporting sources ★☆☆☆☆
Aphidifuge 1 supporting sources ★☆☆☆☆
Cytotoxic 1 supporting sources ★☆☆☆☆
Hypolipemic 1 supporting sources ★☆☆☆☆

AntiHIV

  1. Dr. Duke

Anticarcinomic

  1. Dr. Duke

Antifeedant

  1. Dr. Duke

Antiflu

  1. Dr. Duke

Antiinflammatory

  1. Dr. Duke

Antitumor

  1. Dr. Duke

Antiviral

  1. Dr. Duke

Aphidifuge

  1. Dr. Duke

Cytotoxic

  1. Dr. Duke

Hypolipemic

  1. Dr. Duke

Conditions

Euclea crispa has 3 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include breast cancer, cancer, ovarian cancer.

Conditions investigated for Euclea crispa
Condition Supporting sources Consensus
Breast cancer 1 supporting sources ★☆☆☆☆
Cancer 1 supporting sources ★☆☆☆☆
Ovarian cancer 1 supporting sources ★☆☆☆☆

Breast cancer

  1. Journal of pharmacy & bioallied sciences

Cancer

  1. Journal of pharmacy & bioallied sciences

Ovarian cancer

  1. Journal of pharmacy & bioallied sciences

Preparations

Euclea crispa has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include hexane extract of E. crispa leaves.

Preparations reported for Euclea crispa
Preparation Supporting sources Consensus
Hexane extract of e. crispa leaves 1 supporting sources ★☆☆☆☆

Hexane extract of e. crispa leaves

  1. Journal of pharmacy & bioallied sciences