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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Caryophyllaceae
Tribus: Caryophylleae
Genus: Petrorhagia
Species

P. alpina – P. arabica – P. cretica – P. cyrenaica – P. dianthoides – P. dubia – P. fasciculata – P. glumacea – P. graminea – P. grandiflora – P. hispidula – P. illyrica – P. kennedyae – P. lycica – P. nanteuilii – P. obcordata – P. ochroleuca – P. pamphylica – P. peroninii – P. phthiotica – P. prolifera – P. rhiphaea – P. rigida – P. rupestris – P. sarbaghiae – P. saxifraga – P. syriaca – P. thessala – P. wheeler-hainesii – P. zoharyana
Name

Petrorhagia (Ser.) Link, Handbuch 2: 235 (1831).

Type species: Petrorhagia saxifraga (L.) Link, Handbuch 2: 235 (1831).

Synonyms

Basionym
Gypsophila sect. Petrorhagia Ser. in Candolle, Prodr. 1: 354 (1824).
Heterotypic
Tunica Ludw., Inst. Regn. Veg. (ed. 2): 129 (1757).
Imperatia Moench, Methodus: 60 (1794).
Kohlrauschia Kunth, Fl. Berol. ed. 2. 1: 108 (1838).
Fiedleria Rchb., Icon. Fl. Germ. Helv. 6: 42 (1844).
Dianthella Clauson ex Pomel, Mat. Fl. Atl. 9 (1860).

References
Primary references

Link, J.H.F. 1831. Handbuch zur Erkennung der nutzbarsten und am häufigsten vorkommenden Gewächse. Zweiter Theil. 533 pp. Berlin: Haude & Spener. BHL Reference page. (!235).

Additional references

Hernández-Ledesma, P., Berendsohn, W. G., Borsch, T., Mering, S. v., Akhani, H., Arias, S., Castañeda-Noa, I., Eggli, U., Eriksson, R., Flores-Olvera, H., Fuentes-Bazán, S., Kadereit, G., Klak, C., Korotkova, N., Nyffeler R., Ocampo G., Ochoterena, H., Oxelman, B., Rabeler, R. K., Sanchez, A., Schlumpberger, B. O. & Uotila, P. 2015. A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. Willdenowia 45(3): 281–383. DOI: 10.3372/wi.45.45301 Open access Reference page.
Madhani, H., Rabeler, R.K., Pirani, A., Oxelman, B., Heubl, G. & Zarre, S. 2018. Untangling phylogenetic patterns and taxonomic confusion in tribe Caryophylleae (Caryophyllaceae) with special focus on generic boundaries. Taxon 67(1): 83–112. DOI: 10.12705/671.6 PDF Reference page.

Links

Hassler, M. 2020. Petrorhagia. 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. 2020. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2020 May 11. Reference page.
Govaerts, R. et al. 2020. Petrorhagia in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 May 11. Reference page.
International Plant Names Index. 2020. Petrorhagia. Published online. Accessed: 11 May 2020.

Vernacular names
Deutsch: Felsennelken
suomi: Kehtoneilikat
magyar: Aszúszegfű

Petrorhagia is a small genus of annual and perennial plants of the family Caryophyllaceae, mostly native to the Mediterranean region. The genus is often referred to as Tunica, which is an obsolete synonym. It is low-growing with wiry stems and narrow, grass-like leaves. The flowers are small, in clusters similar to members of the genus Dianthus, in pink, lilac, or white. Petrorhagia saxifraga is the tunic flower or coat flower, similar to baby's breath, but shorter, and used in rock gardens.

These plants are mainly native to Eurasia, but some species can be found nearly worldwide, having been introduced to other continents.[1]
Species

As of 2019, Kew's Plants of the World Online lists 28 accepted species of Petrorhagia:[1]

Petrorhagia arabica (Boiss.) P.W.Ball & Heywood
Petrorhagia armerioides (Ser.) P.W.Ball & Heywood
Petrorhagia candica P.W.Ball & Heywood
Petrorhagia cretica (L.) P.W.Ball & Heywood
Petrorhagia cyrenaica (E.A.Durand & Barratte) P.W.Ball &
Petrorhagia dianthoides (Sm.) P.W.Ball & Heywood
Petrorhagia dubia (Raf.) G.López & Romo – hairy pink
Petrorhagia fasciculata (Margot & Reut.) P.W.Ball &
Petrorhagia glumacea (Bory & Chaub.) P.W.Ball &
Petrorhagia graminea (Sm.) P.W.Ball & Heywood
Petrorhagia grandiflora Iatroú
Petrorhagia hispidula (Boiss. & Heldr.) P.W.Ball &
Petrorhagia illyrica (Ard.) P.W.Ball & Heywood
Petrorhagia kennedyae (A.K.Jacks. & Turrill) P.W.Ball &
Petrorhagia lycica (P.H.Davis) P.W.Ball & Heywood
Petrorhagia macra (Boiss. & Hausskn.) P.W.Ball &
Petrorhagia nanteuilii (Burnat) P.W.Ball & Heywood – childing pink
Petrorhagia obcordata (Margot & Reut.) Greuter &
Petrorhagia ochroleuca (Sm.) P.W.Ball & Heywood
Petrorhagia pamphylica (Boiss. & Balansa) P.W.Ball &
Petrorhagia peroninii (Boiss.) P.W.Ball & Heywood
Petrorhagia phthiotica (Boiss. & Heldr.) P.W.Ball &
Petrorhagia prolifera (L.) P.W.Ball & Heywood – proliferous pink
Petrorhagia rhiphaea (Pau & Font Quer) P.W.Ball
Petrorhagia rupestris Brullo & Furnari
Petrorhagia saxifraga (L.) Link – tunic-flower
Petrorhagia syriaca (Boiss.) Mouterde & Greuter
Petrorhagia thessala (Boiss.) P.W.Ball & Heywood

References

"Petrorhagia (Ser. ex DC.) Link". Plants of the World Online. Royal Botanical Gardens Kew. Retrieved 6 January 2019.

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