Manchurian wild rice

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Zizania mezii
• Hydropyrum latifolium
• Zizania aquatica var. latifolia
• Zizania dahurica

Sources: Wikidata

Taxonomical Classification

This plant, Zizaniia latifolia, belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae and order Poales, it is further categorized under the family Poaceae. It is specifically identified by its genus, Zizaniia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions of the European continent. In Northern Europe, its presence is documented in both Great Britain and Ireland. Moving toward the center of the continent, it can also be found within the borders of Germany. The species extends into Southwestern Europe, specifically inhabiting the landscape of Spain. Finally, its range reaches into Southeastern Europe, where it is located in Italy.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Zizania latifolia is defined by its specialized preference for aquatic environments, specifically thriving within the shallow margins of lakes. As a highly adapted hydrophyte, it occupies stable, nutrient-rich freshwater ecosystems where its root systems can anchor in soft, submerged sediments. The presence of these lakes provides the necessary constant water levels and high moisture availability required for its vegetative expansion. Within these lacustrine habitats, the plant plays a significant role in the local ecosystem by forming dense, floating mats that influence light penetration, water oxygenation, and the structural complexity of the aquatic zone.

Habitat :

lakes

Life history

The life history of Zizania latifolia is characterized by its classification as a perennial plant, allowing it to persist through multiple growing seasons. Structurally, the species exhibits a complex life form, functioning as both a geophyte and a hemicryptophyte. As a geophyte, it relies on underground storage organs to survive unfavorable environmental conditions, while its hemicryptophyte status indicates that its perennating buds are located at or just below the soil surface, protected by leaf litter or debris.

Life form :

geophyte

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Zizania latifolia is characterized by a growth form that is both herbaceous and graminoid in nature. As a non-woody plant, it exhibits a self-supporting climbing habit rather than acting as an obligatory or facultative vine or liana. In terms of stature, the plant reaches a minimum height of 2 m, with a mean height of approximately 3.25 m, and can reach a maximum height of up to 5 m. While it is primarily classified as a terrestrial species, it can also exhibit aquatic or semiaquatic characteristics. Furthermore, the plant is an independent organism, lacking any parasitic tendencies, and maintains a terrestrial lifestyle rather than functioning as an epiphyte.

Aquatic :

aquatic

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

graminoid

Parasite :

independent

Plant height max:

5 m

Plant height mean:

3.25 m

Plant height min:

2 m

Woodiness :

non-woody

Physiology

The physiological profile of Zizania latifolia is characterized by specific morphological dimensions and metabolic attributes, particularly concerning its foliar development and nutrient acquisition strategies. The leaves exhibit significant longitudinal growth, reaching a maximum length of up to 40 cm. In contrast to this length, the leaf width remains remarkably consistent and narrow, maintaining a mean, minimum, and maximum width of 1 cm throughout its development. Regarding its metabolic interaction with soil nutrients, the plant does not function as a nitrogen fixer, meaning it relies on the uptake of available nitrogen from its environment rather than through symbiotic nitrogen-fixing processes.

Leaf length max:

40 cm

Leaf width mean:

1 cm

Nitrogen fixer :

no

Reproduction

The reproduction of Zizania latifolia involves both sexual and asexual mechanisms. In its sexual phase, the plant features bisexual flowers, which facilitate reproduction through an abiotic pollination syndrome specifically driven by the wind. The flowering period is relatively concentrated, beginning in July and concluding in August. Once fertilization occurs, the plant utilizes an anemochorous dispersal syndrome, meaning its seeds or reproductive structures are dispersed via wind (anemochorous) to colonize new areas. In addition to these sexual processes, asexual reproduction is also present, allowing the plant to propagate vegetatively.

Dispersal syndrome :

anemochorous

Flowering time :

Jul

Flowering time :

Aug

Pollination syndrome :

wind

Pollination syndrome :

abiotic

Reproduction asexual :

present

Reproduction sexual :

bisexual

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Zizania latifolia 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 root.

Root

1. Molecules (Basel, Switzerland)

Chemicals

Zizania latifolia has 6 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include ARA, GAL, GALA, MAN, Rha.

ARA

1. International journal of biological macromolecules

GAL

1. International journal of biological macromolecules

GALA

1. International journal of biological macromolecules

MAN

1. International journal of biological macromolecules

Rha

1. International journal of biological macromolecules

glc

1. International journal of biological macromolecules

Preparations

Zizania latifolia has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include ZLs.

Zls

1. Journal of ethnobiology and ethnomedicine