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Sabal

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The genus *Sabal* consists of a group of New World palms, often called fan-palms.

Spalmetto2
Spalmetto2

There are currently 17 recognized species within this genus, including one hybrid species. These palms are significant because they occupy diverse ecological niches across the Americas. They are native to subtropical and tropical regions. Their range extends from the Gulf Coast and South Atlantic states in the Southeastern United States, through the Caribbean and Mexico, into Central America. They reach as far south as Colombia and Venezuela.

Sabal brazoriensis
Sabal brazoriensis

Scientists identify members of this genus by looking at their specific leaf structures. The leaves originate from a bare petiole, which is the stalk of the leaf. This petiole is unarmed, meaning it does not have thorns. Each leaf features a costa, or midrib, that extends directly into the leaf blade. The length of this costa varies between different species. This variation changes the shape of the leaf blade. Some species, such as *Sabal palmetto* and *Sabal etonia*, have strongly curved or costapalmate leaves. Other species, like *Sabal minor*, have leaves that are weakly costapalmate and almost flattened.

Sabal rosei 2
Sabal rosei 2

The fruit of the *Sabal* palm is a drupe. A drupe is a type of fruit with a fleshy part surrounding a hard shell. These fruits typically change color from green to black as they reach maturity. This fruit serves as a vital food source for many animals. Various bird species, such as the mockingbird and the American robin, eat the fruit. Insects like Hymenoptera also feed on them. Larger mammals, including American black bears and raccoons, are known to eat the fruit as well.

Taxonomy is the science of naming and classifying living things. The name *Sabal* was first applied to this group by Michel Adanson in the 18th century. Before this, the group was associated with names like *Corypha* or *Chamaerops*. In 1990, Scott Zona conducted an analysis of the genus. He looked at morphological and anatomical characters, which are the physical shapes and structures of the plants. Zona created a cladogram, a diagram showing evolutionary relationships. He identified four distinct clades, or groups of closely related species. Clade 1 contained *Sabal minor*. Clade 2 included *Sabal bermudana*, *S. palmetto*, *S. miamiensis*, and *S. etonia*. Clade 3 was the largest, containing seven species like *Sabal causiarum* and *S. mexicana*. Clade 4 included *Sabal uresana*, *S. rosei*, and *S. pumos*.

Sabal uresana Tucson Arizona May 2012
Sabal uresana Tucson Arizona May 2012

More recent research has changed how we understand these evolutionary relationships. In 2016, a study led by Heyduk, Trapnell, Barrett, and Leebens-Mack used molecular data. This means they looked at nuclear and plastid DNA sequences to estimate how species are related. Their results differed from Zona's earlier cladogram. The molecular data showed that Clade 4 species actually split and integrated throughout the wider phylogeny, or the evolutionary tree. Clade 3 was also significantly disrupted and split into multiple groups. However, the relationships in Clade 1 and Clade 2 remained consistent with Zona's work.

Sabal pumos (Scott Zona) 001
Sabal pumos (Scott Zona) 001

The history of *Sabal* reaches far back into the prehistoric past. Fossils show these plants lived from the late Cretaceous to the Quaternary period. This spans from 66 million years ago to just 12,000 years ago.

Arecaceae - Sabal major
Arecaceae - Sabal major

Fossil evidence has been found in the United States, Japan, and several European countries. These include Italy, Switzerland, Germany, Greece, Slovakia, the United Kingdom, and France. In Greece, 27 million-year-old fossils of *Sabal raphipholia* were found in volcanic rocks. In Slovakia, leaf fossils of *Sabal lamanonis* were recovered from rhyodacite tuff, which is a type of volcanic rock.

Sabal mauritiiformis 12zz
Sabal mauritiiformis 12zz

Humans interact with *Sabal* palms in many practical ways. Because arborescent, or tree-like, species grow slowly, they are often transplanted into urban landscapes rather than grown in nurseries. Some species are used as ornamental plants in gardens. Because some are cold-hardy, they can grow further north than most other palms. The central bud of *Sabal palmetto* is edible and is called "swamp cabbage" when cooked. Additionally, people use the mature fronds for thatch, weaving mats, or making straw hats.

Sabal causiarum2 edit
Sabal causiarum2 edit
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🖼️ Images & Media (19)
File:Sabal uresana Tucson Arizona May 2012.JPG
Sabal uresana Tucson Arizona May 2012.JPG
File:Sabal brazoriensis.jpg
Sabal brazoriensis.jpg
File:Sabal rosei 2.jpg
Sabal rosei 2.jpg
File:Spalmetto2.JPG
Spalmetto2.JPG
File:Sabal pumos (Scott Zona) 001.jpg
Sabal pumos (Scott Zona) 001.jpg
File:Sabal mexicana 1.jpg
Sabal mexicana 1.jpg
File:SabalPalm.jpg
SabalPalm.jpg
File:Sabal mauritiiformis 12zz.jpg
Sabal mauritiiformis 12zz.jpg
File:Sabal yapa 4zz.jpg
Sabal yapa 4zz.jpg
File:Gardenology.org-IMG 0529 hunt07mar.jpg
Gardenology.org-IMG 0529 hunt07mar.jpg
File:Arecaceae - Sabal major.JPG
Arecaceae - Sabal major.JPG
File:Gardenology.org-IMG 2114 hunt0903.jpg
Gardenology.org-IMG 2114 hunt0903.jpg

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