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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Rosales

Familia: Urticaceae
Tribus: Forsskaoleae
Genus: Forsskaolea

Species: F. angustifolia – F. candida – F. griersonii – F. hereroensis – F. procridifolia – F. tenacissima – F. viridis

Forsskaolea L., Opobalsamum 17 (-18) (1764), as "Forsskålea"

Type species: Forsskaolea tenacissima L.
Eponymy: named for Peter Forsskål (1732–1763).


Chamaedryfolia Dill. ex Kuntze, Revis. Gen. Pl. 2: 625. (1891), nom. illeg. superfl.
Type species: Chamaedryfolia tenacissima (L.) Kuntze
Caidbeja Forssk., Fl. Aegypt.-Arab. 82. (1775)
Type species: Caidbeja adhaerens Forssk.


Linnaeus, C. & Le Moine, W. 1764. Opobalsamum declaratum in dissertatione medica ... sub praesidio ... Caroli von Linné ... submittit ... Wilhelmus Le Moine ... Upsaliae. 19 pp. Hathitrust Open access. Reference page. : 17
Forsskål, P. (†). 1775. Flora Aegyptiaco-Arabica. Sive descriptiones plantarum, quas per Aegyptum inferiorem et Arabiam felicem detexit, illustravit Petrus Forskål. Post mortem auctoris edidit Carsten Niebuhr. Ex officina Mölleri, Hauniae [Copenhagen]. DOI: 10.5962/bhl.title.41 BHL Reference page. : 82
Kuntze, O. 1891. Revisio generum plantarum vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum. Pars II. Pp. 377–1011. Arthur Felix, Leipzig [etc.]. BHL Reference page. : 625


Hassler, M. 2019. Forsskaolea. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2019. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2019 Nov. 21. Reference page.
International Plant Names Index. 2019. Forsskaolea. Published online. Accessed: Nov. 21 2019.
Govaerts, R. et al. 2019. Forsskaolea in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 Nov. 21. Reference page.
Tropicos.org 2019. Forsskaolea. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Nov. 21.
USDA, ARS, Germplasm Resources Information Network. Forsskaolea in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 2019-Nov-21.

Vernacular names
suomi: Petterikit

Forsskaolea is a small genus of 6 species of perennial herbs in the nettle family with non-stinging hairs and dot-like concretions of mineral matter on their green parts. The genus was named in honor of Swedish botanist Peter Forsskål.[4]


The leaves have three ribs, are alternate, scalloped and with toothlike projections along the edges.
Budding flowers are flat-topped clusters and bisexual and from the base stem, enclosed in bell shaped, densely hairy, rings of 3-6 bracts. Flowers are minute and unisexual with the female surrounded by a ring of male flowers. Male flowers have 3-5 lobed calyx and the females have none. Solitary stamen, upright wooly ovaries with no style.
Achenes oval to elliptical, flattened, densely hairy and enveloped in wooly bracts.[2]


Forsskaolea have found homes in the southern parts of the Palearctic from the Canary Isles and southeast Spain then eastwards to Pakistan and western India.[2]
Selected species

Forsskaolea angustifolia Retz.
Forsskaolea candida L.f.
Forsskaolea hereroensis Schinz
Forsskaolea procridifolia Webb
Forsskaolea tenacissima L.
Forsskaolea viridis Ehrenb. ex Webb[5]


Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Forsskaolea". Euro+Med PlantBase. Freie Universität Berlin. Archived from the original on 2012-02-25. Retrieved 2008-04-24.
Flora of Pakistan. "Forsskaolea Linn". Retrieved 2008-04-24.
Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: Forsskalea". Euro+Med PlantBase. Freie Universität Berlin. Archived from the original on 2012-02-25. Retrieved 2008-04-24.
Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Forskål, Peter" . New International Encyclopedia (1st ed.). New York: Dodd, Mead.
"Forsskaolea L.". African Plants Database. South African National Biodiversity Institute, the Conservatoire et Jardin botaniques de la Ville de Genève and Tela Botanica. Retrieved 2008-04-24.[permanent dead link]

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