Asparagus prostratus

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Wild asparagus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Asparagoideae
Genus: Asparagus
Species:
A. prostratus
Binomial name
Asparagus prostratus
K. Richt
Synonyms[1]
  • Asparagus altilis subsp. prostratus (Dumort.) K.Richt.
  • Asparagus officinalis subsp. prostratus (Dumort.) Corb.
  • Asparagus officinalis proles prostratus (Dumort.) Rouy
  • Asparagus officinalis var. prostratus (Dumort.) Nyman

Asparagus prostratus, also known as wild asparagus, is a species of flowering plant from the genus Asparagus and family Asparagaceae.

It has been placed onto the UK Biodiversity Action Plan list of priority species.[2]

A. prostratus is a perennial species.[3] It has a prostrate growth habit and needle like leaves that can reach up to 2.4 cm long.[4] A. prostratus stems grow from rhizomes.[3] It produces small, yellow, bell-shaped flowers.[4] Berries start off green and begin to turn red between July and October.[4] The berries are toxic to humans and cause diarrhoea and vomiting.[5]

Reproduction

A. prostratus is a dioecious species, with plants being either male or female.[4] Colonies of this species therefore require both male and female plants for successful sexual reproduction. Plants will flower from May and June.[4] Flowers are pollinated by insects.[4] Once pollinated plants will produce berries.[4] Berries are eaten by animals such as birds, which help disperse the seeds.[4]

A. prostratus can also clone itself asexually. Stems sprout from rhizomes that spread horizontally beneath the soil, which helps the plant reproduce through vegetative reproduction.[4] This allows the species to reproduce when either male or female plants are absent.

Distribution

This species is endemic to Europe, where it has been recorded on the coastlines of: Belgium, the Channel Islands, Denmark, France, Germany, Ireland, Spain, the United Kingdom and the Netherlands.[6][7]

It is believed the species may be extinct in Germany.[4]

Asparagus prostratus ripe berries

Habitat

A. prostratus can be found growing in coastal habitats such as cliffs, sand dunes and shingle beaches.[4]

Threats

References

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