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Grewia occidentalis

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scrambling, deciduous tree reaching a height of about 3 m, its purple, star-shaped flowers appear in summer, followed by distinctive four-lobed berries (from where it gets its common names "crossberry" and "four-corner"). These shiny reddish-brown fruits remain on the tree for long periods and are favoured by fruit-eating birds. The simple leaves are shiny, deep green and sometimes slightly hairy.

Distribution and Habitat[edit source]

Grewia occidentalis occurs naturally across south-eastern Africa, where its range

Grewia occidentalis
Fruits
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Grewia
Species:
G. occidentalis
Binomial name
Grewia occidentalis
Synonyms
  • Grewia chirindae Baker f.
  • Grewia microphylla Weim.
  • Grewia obtusifolia Eckl. & Zeyh.
  • Grewia trinervis E.Mey.
  • Grewia ulmifolia Salisb. [2]
Seeds of Grewia occidentalis

Grewia occidentalis, the crossberry, is a species of deciduous tree indigenous to Southern Africa.[3]

Description

A dense, attractive shrub or small tree with dark green leaves 3-10m high, sometimes scrambling. The common names are "crossberry" and "four-corner." Its simple leaves are shiny, deep green and slightly fleshy, about 5-7cm long with small rounded teeth. The sepals and petals form unusual double star-shaped flowers, purple, mauve, pink or rarely white, 1.5-3cm across. Flower time is summer, followed by unusual four-lobed fruits (drupes). These shiny reddish-brown berry-like fruits remain on the tree after maturity and attract fruit-eating birds.

Distribution and Habitat

Grewia occidentalis occurs naturally across south-eastern Africa, where its range extends from Cape Town along the coast to Mozambique and inland to Zimbabwe.[4]

The native habitats of the plant are extremely varied, it is found in both the arid karoo of western South Africa and from the Highveld, and across the Afromontane forests of the Drakensberg range along the eastern coastline.[3]

Growing Grewia occidentalis

This decorative garden plant tolerates both light frost and drought. It also grows in both full sun or shade. The root system is not aggressive and can therefore be planted near buildings and paving, and it is very good at attracting butterflies and birds to the garden.[citation needed] The crossberry is best propagated from seed, although even then it can be erratic, as usually the seed needs to pass through the gut of a monkey before germination commences.[citation needed]

The berries are eaten locally, either fresh and raw, fermented with traditional beer, or used with goats milk to make berry yoghurt. [citation needed]

References

  1. ^ Botanic Gardens Conservation International (BGCI).; IUCN SSC Global Tree Specialist Group (2019). "Grewia occidentalis". IUCN Red List of Threatened Species. 2019: e.T147141452A147141454. doi:10.2305/IUCN.UK.2019-2.RLTS.T147141452A147141454.en. Retrieved 18 November 2021.
  2. ^ "Grewia occidentalis L. | WFO (2021)". www.worldfloraonline.org. 2021. Retrieved 13 December 2021.
  3. ^ a b "Grewia occidentalis | PlantZAfrica.com". pza.sanbi.org. July 2008. Retrieved 13 December 2021.
  4. ^ "Grewia occidentalis L. | Plants of the World Online". powo.science.kew.org. Retrieved 14 December 2021.

Media related to Grewia occidentalis at Wikimedia Commons