Gonatopus (plant)

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Gonatopus
Gonatopus boivinii cultivation.jpg
Gonatopus boivinii in cultivation
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Araceae
Subfamily: Zamioculcadoideae
Genus: Gonatopus
Engl. [1]
Species

See here

Synonyms [1]
  • HeterolobiumPeter
  • MicroculcasPeter

Gonatopus is a genus of flowering plants in the family Araceae, consisting of five species. [1] This genus is native to and southeastern Africa [1] and is closely related to the genus Zamioculcas . [2]

Contents

Description

Gonatopus boivinii growing in Lincoln Park Conservatory, Chicago Gonatopus boivinii kz3.jpg
Gonatopus boivinii growing in Lincoln Park Conservatory, Chicago

Vegetative characteristics

Gonatopus are terrestrial, [3] rhizomatous or tuberous, [3] [4] seasonally dormant herbs [5] with large, solitary [6] mostly petiolate, or rarely decurrent leaves. [3]

Generative characteristics

The plant bears 1–4 inflorescences. [4] The unisexual flowers have four fleshy tepals. [3] The stigma is capitate. [6] The orange, red, yellow, or white, ovoid to ellipsoid berry bears 1–2 ovoid to ellipsoid seeds. [4]

Taxonomy

It was described by Adolf Engler in 1879. [6] [1] It is closely related to the genus Zamioculcas . [2]

Species

It has five species: [1]

Cultivation

The most commonly found Gonatopus species in private collections and botanical gardens is Gonatopus boivinii. [2] Its common name giraffe's knees [7] [8] [9] is derived from the resemblance of the swollen part of the petiole with the knee of a giraffe. [8] [10] Since Gonatopus boivinii is tropical in origin, [10] it may be grown as an indoor plant. [8] It is cultivated as an ornamental plant, [11] and may display mottled and spotted colouration on the leaves and the inflorescence. [9] The plants should be kept warm, [8] and in filtered light or light shade. [8] [12] After the growing season, the tubers can be stored outside of the soil. [8]

References

  1. 1 2 3 4 5 6 Gonatopus Engl. (n.d.). Plants of the World Online. Retrieved January 4, 2026, from https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:2793-1
  2. 1 2 3 Hetterscheid, W. (n.d.). The Genus Gonatopus. International Aroid Society. Retrieved January 4, 2026, from http://www.aroidsociety.org/genera/generapage.php?genus=gonatopus
  3. 1 2 3 4 Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2026). Flora of Mozambique: Genus page: Gonatopus. https://www.mozambiqueflora.com/speciesdata/genus.php?genus_id=300, retrieved 4 January 2026
  4. 1 2 3 Gonatopus. (n.d.). Pacific Bulb Society. Retrieved January 4, 2026, from https://www.pacificbulbsociety.org/pbswiki/index.php/Gonatopus
  5. eMonocot Team Gonatopus - Engl. CATE Araceae https://cate-araceae.myspecies.info/taxonomy/term/7983 (accessed 4 January 2026)
  6. 1 2 3 Candolle, Alphonse de, & Candolle, Casimir de. (1878). Monographiæ phanerogamarum : Prodromi nunc continuatio, nunc revisio (Vol. 2, p. 208). vol.1-8, G. Masson ; vol.9, Masson & Cie. https://www.biodiversitylibrary.org/page/31869872
  7. Gonatopus boivinii. (n.d.). Atlas of Florida Plants. Retrieved January 4, 2026, from https://florida.plantatlas.usf.edu/plant/species/5018
  8. 1 2 3 4 5 6 Gonatopus boivinii (Giraffe’s Knees). (2024, February 16). Top Tropicals Plant Encyclopedia. Retrieved January 4, 2026, from https://toptropicals.com/catalog/uid/gonatopus_boivinii.htm
  9. 1 2 Singapore Government. (n.d.). Gonatopus boivinii (Decne.) Engl. NParks. Retrieved January 4, 2026, from https://www.nparks.gov.sg/florafaunaweb/flora/5/5/5562
  10. 1 2 Tyler, A. (2024, June 21). Celebrate World Giraffe Day with a Twist: Discover the Giraffe’s Knees Plant! Cincinnati Zoo & Botanical Garden. Retrieved January 4, 2026, from https://cincinnatizoo.org/celebrate-world-giraffe-day-with-a-twist-discover-the-giraffes-knees-plant/
  11. Gonatopus boivinii (GPSBO). (n.d.). EPPO Global Database. Retrieved January 4, 2026, from https://gd.eppo.int/taxon/GPSBO
  12. Giraffe’s Knees (Gonatopus boivinii). (n.d.). National Gardening Association. Retrieved January 4, 2026, from https://garden.org/plants/view/458751/Giraffes-Knees-Gonatopus-boivinii/