Madeira sorrel
Rumex maderensis · Accepted scientific name
Scientific literature: Very Sparse (3 studies) · ★☆☆☆☆
Madeira sorrel, scientifically known as Rumex maderensis, is a perennial herb native to the Macaronesian islands. Renowned for its distinctive tart flavor, it contains significant amounts of oxalic acid. Traditionally used in regional culinary practices, this plant serves as both a nutritious edible green and a botanical curiosity.
- Family
- Polygonaceae
- Native range
- Africa
- Parts used
- Not available
- Common names
- Madeira Sorrel
- Scientific synonyms
- Acetosa Maderensis
Names and Synonyms
Common Names
- Madeira sorrel
Scientific Names
Accepted name
Rumex maderensisSynonyms
- Acetosa maderensis
Sources: Wikidata, Catalogue of Life
Taxonomical Classification
This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is classified under the subclass Magnoliidae in the order Caryophyllales and is a member of the family Polygonaceae. Specifically, it is identified by the genus Rumex.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Caryophyllales |
| Family | Polygonaceae |
| Genus | Rumex |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
This plant is endemic to the Macaronesian region, specifically occupying limited ecological niches. Its primary geographical distribution is concentrated within the Canary Islands. Additionally, the species can be found growing across the archipelago of Madeira. These specific locations represent the entirety of its natural range within the Atlantic islands. Consequently, the survival of this medicinal plant depends heavily on the conservation of these two distinct island groups.
| Region | Area |
|---|---|
| Macaronesia | Canary Is. |
| Macaronesia | Madeira |
Sources: The World Checklist of Vascular Plants (WCVP)
Botanical Identification
Ecology
The ecology of Rumex maderensis is characterized by its adaptation to specific altitudinal gradients within its natural habitat. This species thrives across a defined elevational range, occupying various ecological niches from a minimum altitude of 200 m AMSL to a maximum altitude of 1000 m AMSL. Within this vertical distribution, the plant's presence is dictated by the varying environmental pressures associated with different elevations, including shifts in temperature, moisture availability, and soil composition found between these two thresholds.
- Elevational range max:
- 1000 m AMSL
- Elevational range min:
- 200 m AMSL
Life history
The life history of Rumex maderensis is characterized by a perennial lifecycle, allowing the plant to persist in its environment over multiple growing seasons. As a perennial species, it avoids the complete mortality associated with annuals after a single reproductive event, instead focusing on long-term survival and the establishment of robust root systems. This lifecycle enables the plant to navigate seasonal fluctuations and accumulate enough energy reserves to support successive flowering and seeding periods. By maintaining a presence across multiple years, it can effectively colonize and dominate its specific ecological niche through sustained vegetative growth and periodic reproductive cycles.
- Lifecycle :
- perennial
Morphology
The morphology of Rumex maderensis is characterized by its growth form as a non-woody herb. The plant exhibits a stature that varies in height, typically ranging from a minimum of 0.2 m to a maximum of 1 m.
- Growth form :
- herb
- Plant height max:
- 1 m
- Plant height min:
- 0.2 m
- Woodiness :
- non-woody
Physiology
The physiology of Rumex maderensis is characterized by a robust vegetative structure, particularly evident in its leaf morphology which plays a critical role in its photosynthetic capacity and resource acquisition. The plant exhibits significant variation in its leaf dimensions, with leaf lengths ranging from a minimum of 5 cm to a maximum of 8 cm. Complementing this length, the leaf width fluctuates between 3 cm and 6.5 cm, providing a substantial surface area for light interception. The leaves are specifically described as having an ovate form, a shape that optimizes the balance between gas exchange efficiency and water retention. This structural configuration of the foliage suggests an adaptive physiological strategy to manage metabolic demands within its specific environmental niche.
- Leaf form :
- ovate
- Leaf length max:
- 8 cm
- Leaf length min:
- 5 cm
- Leaf width max:
- 6.5 cm
- Leaf width min:
- 3 cm
Reproduction
The reproduction of Rumex maderensis is characterized by a flowering period that typically commences in April and extends through August, though the specific timing can remain variable depending on environmental conditions. During this reproductive phase, the plant produces flowers that exhibit a distinct red color. These flowers are arranged in a paniculate inflorescence, which serves as the structural foundation for the plant's blooming stage and subsequent seed production.
- Flower colour :
- red
- Flowering time :
- Apr
- Flowering time :
- Aug
- Inflorescence :
- panicle
Sources: Global Inventory of Floras and Traits (GIFT)
Chemicals
Rumex maderensis has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, l-ascorbic acid.
| Chemical | Supporting sources | Consensus |
|---|---|---|
| Flavonoids | 1 supporting sources | ★☆☆☆☆ |
| l-ascorbic acid | 1 supporting sources | ★☆☆☆☆ |
Flavonoids
- Molecules (Basel, Switzerland)
l-ascorbic acid
- Molecules (Basel, Switzerland)
Activities
Rumex maderensis has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antioxidant.
| Activity | Supporting sources | Consensus |
|---|---|---|
| Antioxidant | 1 supporting sources | ★☆☆☆☆ |
Antioxidant
- Molecules (Basel, Switzerland)