Contains 2 accepted taxa overall.

Characteristics
Kallstroemia Scop.
CALTROP
Classification
ZYGOPHYLLALES
Kallstroemia
Citation
KALLSTROEMIA Scopoli, Intr. Hist. Nat. 212. 1777.
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TYPE: Kallstroemia maxima (Linnaeus) Hooker & Arnott (Tribulus maximus Linnaeus)
Species
Scientific Name Common Name Herbarium Specimens Status Photos
Kallstroemia maxima BIG CALTROP Native
Kallstroemia pubescens CARIBBEAN CALTROP Not Native
[Family identification key]
1.  Ovary and fruit glabrous or sometimes strigose
1.  Ovary and fruit densely appressed short-pilose
Genus Synonyms
Synonym Full Citation Basionym Type
Ehrenbergia Ehrenbergia Martius, Nova Gen. Sp. 2: 72. 1827 ("1826"), non Sprengel 1820. TYPE: Ehrenbergia tribuloides Martius
Heterozygia Heterozygia Bunge, Mem. Acad. Imp. Sci. Saint Petersbourg Divers Savans 2: 583. 1835. TYPE: = Kallstroemia Scopoli 1777.
Tribulopsis Tribulopsis R. Brown, in Sturt, Narr. Exped. C. Australia 2(App.): 70. 1849. TYPE: Non designatus.