''Trithrinax'' is a genus of flowering plants in the subfamily

Coryphoideae The Coryphoideae is one of five subfamilies in the palm family, Arecaceae. It contains all of the genera with palmate leaves, excepting ''Mauritia'', ''Mauritiella'' and ''Lepidocaryum,'' all of subfamily Calamoideae, tribe Lepidocaryeae, subtr ...

of the family

Arecaceae The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees ...

. The name is derived from ancient Greek, where ''tri'' means three, and ''thrinax'' trident. It was named in 1837 by Carl Friedrich Philipp von Martius, a German

botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ...

and explorer.Moore, H. E., Jr. 1963. An annotated checklist of cultivated palms. ''Trithrinax'' species are spiny fan palms native to South America. They are resistant to cold, heat, wind, drought, poor soils and other adverse environmental conditions. Seeds germinate fast, but their overall growth rate is distinctly slow.Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. /

Description

Common features of ''Trithrinax'' species include: *''Flowers'': Inflorescences, in the order of hundreds of units. Flowers with three

sepals A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

, three petals, six

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s and three

carpels Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' ...

. *''Stem'': Dead foliage is kept as a thick and spiny coat around the trunk. *''Leaves'': Fan shaped (palmate), composed of strong resistant fibers. *'' Shoots'': Red coloured.

Taxonomy

In the first edition of ''

Genera Palmarum ''Genera Palmarum'' is a botany reference book that gives a detailed overview of the systematic biology of the palm family (Arecaceae). The first edition of ''Genera Palmarum'' was published in 1987. The second edition was published in 2008, with ...

'' (1987),

Natalie Uhl Natalie Whitford Uhl (1919–2017) was an American botanistIPNI: Natalie Whitf ...

and John Dransfield placed the genus ''Trithrinax'' in

subfamily In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus. Standard nomenclature rules end subfamily botanical names with "-oideae", and zoologi ...

, tribe

Corypheae Corypheae is a tribe of palm trees in the subfamily Coryphoideae. In previous classifications, tribe Corypheae included four subtribes: Coryphinae, Livistoninae, Thrinacinae and Sabalinae, but recent phylogenetic studies have led to the genera ...

and

subtribe Subtribe is a taxonomic category ranking which is below the rank of tribe and above genus. The standard suffix for a subtribe is -ina (in animals) or -inae (in plants Plants are predominantly photosynthetic eukaryotes of the kingdom Plant ...

Thrinacinae. Subsequent phylogenetic analyses showed that the

Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by the ...

and New World members of Thrinacinae are not closely related. As a consequence, ''Trithrinax'' and related genera have been placed in their own tribe,

Cryosophileae Cryosophileae is a tribe of palms in the subfamily Coryphoideae. The tribe ranges from southern South America, through Central America, into Mexico and the Caribbean. It includes New World genera formerly included in the tribe Thrinacinae, wh ...

Habitat

''Trithrinax'' species are spread along vast subtropical zones of South America:

Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

, Brazil, Paraguay, Uruguay, Argentina. They prefer dry, open or forest clearing, environments, with moderate to cold winters.Jones, D. L. 1994. Palms throughout the world.

Usage

Leaf fibers are used as raw material for textiles, rustic clothing, and handicrafts. Oil can also be extracted from seeds. Fruits are sometimes used locally, fermented, to produce alcoholic beverages.

References

{{Taxonbar, from=Q144709 Arecaceae genera Flora of South America Taxonomy articles created by Polbot