''Kallstroemia'' is a genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

caltrop A caltrop (also known as caltrap, galtrop, cheval trap, galthrap, galtrap, calthrop, jackrock or crow's foot''Battle of Alesia'' (Caesar's conquest of Gaul in 52 BC), Battlefield Detectives program, (2006), rebroadcast: 2008-09-08 on History C ...

family,

Zygophyllaceae Zygophyllaceae is a family of flowering plants that contains the bean-caper and caltrop. The family includes around 285 species in 22 genera. Plants in the family Zygophyllaceae may be trees, shrubs, or herbs. They are often found in dry habit ...

. The approximately 20 species it contains are native to tropical and warm temperate regions of the

Americas The Americas, sometimes collectively called America, are a landmass comprising the totality of North America and South America.''Webster's New World College Dictionary'', 2010 by Wiley Publishing, Inc., Cleveland, Ohio. When viewed as a sing ...

.Jepson Manual Treatment
/ref> The

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

and

fruit In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propaga ...

morphology is similar to ''

Tribulus ''Tribulus'' is a genus of plants in the family Zygophyllaceae and found in diverse climates and soils worldwide from latitudes 35°S to 47°N. The best-known member is '' T. terrestris'' (puncture vine), a widespread invasive species and weed. ...

''. The convex fruits separate into about 10 nutlets each with one seed. The genus is named after A. Kallstroem who lived in the 18th century.

Species

20 species are accepted. *'' Kallstroemia adscendens'' *'' Kallstroemia boliviana'' *'' Kallstroemia californica'' (S.Watson) Vail – California caltrop *'' Kallstroemia curta'' *'' Kallstroemia grandiflora'' Torr. ex A.Gray – Arizona poppy *'' Kallstroemia hageri'' *'' Kallstroemia hintonii'' *'' Kallstroemia hirsutissima '' Vail ex Small – Hairy caltrop *'' Kallstroemia incana'' *'' Kallstroemia maxima'' (L.) Hook. & Arn. – Big caltrop *''

Kallstroemia parviflora ''Kallstroemia parviflora'', also called small-flowered carpetweed or warty caltrop, is a species of flowering plant. It is found in the United States, and extends as far south as Central America. From east to west, it can be found from Illinois ...

'' Norton – Warty caltrop *'' Kallstroemia peninsularis'' *'' Kallstroemia pennellii'' *'' Kallstroemia perennans'' B.L.Turner – Perennial caltrop *'' Kallstroemia porteri'' *'' Kallstroemia pubescens'' (G.Don) Dandy – Caribbean caltrop *'' Kallstroemia rosei'' *'' Kallstroemia standleyi'' *'' Kallstroemia tribuloides'' *'' Kallstroemia tucumanensis''

References

External links

* * Zygophyllales genera Flora of the Americas Taxa described in 1777 Taxa named by Giovanni Antonio Scopoli {{rosid-stub

Species

References

Further reading

External links