Kosteletzkya

Kosteletzkya
Kosteletzkya pentacarpos
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Malvaceae
Subfamily:	Malvoideae
Tribe:	Hibisceae
Genus:	Kosteletzkya C.Presl
Species
See text
Synonyms [1]
PentagonocarpusParl. PolychlaenaGarcke

Kosteletzkya ^[2] is a genus of the plant family Malvaceae that includes the seashore mallow (K. pentacarpos). It includes about 19 species found worldwide. ^[1]

Although similar in appearance to Hibiscus , Kosteletzkya typically bears more flattened capsules that dehisce loculicidally. The genus was separated from Hibiscus in 1835 by Carl Borivoj Presl, who named it after Vincenz Franz Kosteletzky (1801–1887). ^[3]

Phylogenetic evidence supports this genus being polyphyletic, with New World and Malagasy species of Kosteletzkya belonging to completely different clades within the Hibisceae. Under a revised nomenclature, only New World species would retain the genus name Kosteletzkya. An alternate revision would be to merge all New World Kosteletzkya species into Hibiscus. ^{[4] [5] [6]}

Species

19 species are accepted by Plants of the World Online as of October 2025: ^[1]

• Kosteletzkya adoensis (Hochst. ex A.Rich.) Mast.
• Kosteletzkya batacensis (Blanco) Fern.-Vill.
• Kosteletzkya begoniifolia (Ulbr.) Ulbr.
• Kosteletzkya blanchardii Fryxell
• Kosteletzkya borkouana Quézel
• Kosteletzkya buettneri Gürke
• Kosteletzkya depressa (L.) O.J.Blanch., Fryxell & D.M.Bates – stinging mallow or white fenrose
• Kosteletzkya flavicentrum Fryxell & S.D.Koch
• Kosteletzkya grantii (Mast.) Garcke
• Kosteletzkya hispidula (Spreng.) Garcke
• Kosteletzkya pentacarpos (L.) Ledeb. - seashore mallow
• Kosteletzkya racemosa Hauman
• Kosteletzkya ramosa Fryxell
• Kosteletzkya reclinata Fryxell
• Kosteletzkya rotundalata O.J.Blanch.
• Kosteletzkya semota O.J.Blanch.
• Kosteletzkya thurberi A.Gray
• Kosteletzkya tubiflora (Moc. & Sessé ex DC.) O.J.Blanch. & McVaugh
• Kosteletzkya velutina
• Kosteletzkya wetarensis Borss.Waalk.

Formerly placed here

• Perrierophytum macranthum (Hochr.) M.M.Hanes & Callm. (as K. macranthaHochr.)
• Perrierophytum madagascariense (Baker) M.M.Hanes & Callm. (as *K. madagascariensisBaker)
• Perrierophytum malvocoeruleum (Hochr.) M.M.Hanes & Callm. (as K. malvocoeruleaHochr.)
• Perrierophytum reflexiflorum (Hochr.) M.M.Hanes & Callm. (as K. reflexifloraHochr.)
• Perrierophytum thouarsianum (Baill.) M.M.Hanes & Callm. (as K. thouarsianaBaill.)
• Perrierophytum velutinum (Garcke) M.M.Hanes & Callm. (as K. velutinaGarcke)

References

1. "Kosteletzkya C.Presl | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 29 October 2025.
2. "Garden Dictionary Word: Kosteletzkya".
3. "Kosteletzkya C. Presl [family MALVACEAE] on JSTOR". plants.jstor.org. Retrieved 2022-06-27.
4. Alexander, Sara N.; Hayek, Lee-Ann C.; Weeks, Andrea (March 1, 2012). "A Subspecific Revision of North American Saltmarsh Mallow Kosteletzkya pentacarpos (L.) Ledeb. (Malvaceae)" . Castanea. 77 (1): 106–122. doi:10.2179/11-022. ISSN   0008-7475. S2CID   84203661.
5. Koopman, Margaret M.; Baum, David A. (2008-04-01). "Phylogeny and Biogeography of Tribe Hibisceae (Malvaceae) on Madagascar" . Systematic Botany. 33 (2): 364–374. doi:10.1600/036364408784571653. ISSN   0363-6445. S2CID   85215439.
6. Pfeil, B. E.; Crisp, M. D. (2005). "What to do with Hibiscus? A proposed nomenclatural resolution for a large and well known genus of Malvaceae and comments on paraphyly" . Australian Systematic Botany. 18 (1): 49. doi:10.1071/sb04024. ISSN   1030-1887.