Mirabilis jalapa yellow.jpg
Garden Four O'Clock ( Mirabilis jalapa) flowers
Scientific classification e
Kingdom: Plantae
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Nyctaginaceae
Juss. [1]



Allioniaceae Horan.
Bougainvilleaceae J.Agardh
Mirabilidaceae W.R.B.Oliv.
Pisoniaceae J.Agardh [2]

Nyctaginaceae, the four o'clock family, is a family of around 33 genera and 290 species of flowering plants, widely distributed in tropical and subtropical regions, with a few representatives in temperate regions. The family has a unique fruit type, called an " anthocarp", and many genera have extremely large (>100 µm) pollen grains.

The family has been almost universally recognized by plant taxonomists. The APG II system (2003; unchanged from the APG system of 1998), assigns it to the order Caryophyllales in the clade core eudicots.

A phylogenetic study by Levin has justified the combination of Selinocarpus and Ammocodon into the genus Acleisanthes. The genus Izabalea is now considered a synonym of Agonandra, a genus in Opiliaceae. A more recent study by Douglas and Manos clarified the relationships among almost all of the genera in the family and demonstrated that a substantial diversification of herbaceous genera has occurred in arid North America. Many genera of Nyctaginaceae possess unusual characters. Notable examples include sticky bands on the stems between the nodes, cleistogamous flowers (which self-pollinate without opening), or gypsophily, the ability to grow on soils with a high concentration of gypsum.


Tribe Boldoeae
  • Boldoa Cav. ex Lag.
  • Cryptocarpus Kunth
  • Salpianthus Humb. & Bonpl. [3]
Tribe Bougainvilleeae
Tribe Caribeeae
Tribe Colignonieae
  • Colignonia [6]
Tribe Nyctagineae
Tribe Leucastereae
  • Andradea Allemão
  • Leucaster Choisy
  • Ramisia Glaz. ex Baill.
  • Reichenbachia Spreng. [8]
Tribe Pisonieae
  • Cephalotomandra H.Karst. & Triana
  • Grajalesia Miranda
  • Guapira Aubl.
  • Neea Ruiz & Pav.
  • Neeopsis Lundell
  • Pisonia L.
  • Pisoniella (Heimerl) Standl. [9]
Other Languages
Afrikaans: Nyctaginaceae
العربية: شبية
asturianu: Nyctaginaceae
català: Nictaginàcia
Cebuano: Nyctaginaceae
čeština: Nocenkovité
español: Nyctaginaceae
Esperanto: Niktagacoj
euskara: Nyctaginaceae
français: Nyctaginaceae
한국어: 분꽃과
hornjoserbsce: Dźiwničkowe rostliny
hrvatski: Noćurkovke
Bahasa Indonesia: Nyctaginaceae
italiano: Nyctaginaceae
lietuvių: Dyvinutiniai
Nederlands: Nyctaginaceae
polski: Nocnicowate
português: Nyctaginaceae
русский: Никтагиновые
Simple English: Nyctaginaceae
српски / srpski: Nyctaginaceae
українська: Nyctaginaceae
Tiếng Việt: Họ Hoa giấy
Winaray: Nyctaginaceae
中文: 紫茉莉科