Polaskia

{{Short description|Genus of cacti}}

{{Automatic taxobox

|image = Polaskia chichipe 01.jpg

|image_caption = Polaskia chichipe

|taxon = Polaskia

|authority = Backeb.

|subdivision_ranks = Species

|subdivision = *Polaskia chende - chende, chinoa

|synonyms=

|}}

Polaskia (named after American amateur Charles Polaski) is a genus of tree-like cacti reaching 4–5 m high, comprising 2 species. Both present primitive characteristics, but Polaskia chichipe is nearer to Myrtillocactus while Polaskia chende is nearer to Stenocereus. The genus is found in the Mexican states of Puebla and Oaxaca.{{cite book | last=Anderson | first=Edward F. | last2=Eggli | first2=Urs | title=Das große Kakteen-Lexikon | publication-place=Stuttgart | date=2005 | isbn=978-3-8001-4573-7 | oclc=181456857 | language=de | page=}}{{cite web | title=On-line Guide to the positive identification of Members of the Cactus Family | website=On-line Guide to the positive identification of Members of the Cactus Family | url=https://cactiguide.com/cactus/?genus=Polaskia | access-date=2022-10-25}}

Description

The tree-like, highly branched species of the Polaskia genus reach heights of growth of between 4 and 5 meters and form dense crowns 3 to 4 meters above the ground. Its bright green shoots repeatedly fork and grow 1 to 2 meters long. The 7 to 12 ribs are sharply triangular in cross-section. On their edges, these wear 3 to 4 millimeters wide, shield-shaped areoles at close intervals. The central spine may be absent. The 3 to 8 radial spines are greyish to blackish.

The urn- to bell-shaped flowers are white to creamy white to yellowish green. They open day and night and are between 4 and 6 centimeters long.

The red, spherical fruits with a diameter of 2 to 4 centimeters are juicy and edible. The small seeds it contains are pear- to ovoid-shaped and dull black.

Synonymy

The following genera have been brought into synonymy with Polaskia:

Extant Species

Species as of 2021:{{cite journal | last=Korotkova | first=Nadja | last2=Aquino | first2=David | last3=Arias | first3=Salvador | last4=Eggli | first4=Urs | last5=Franck | first5=Alan | last6=Gómez-Hinostrosa | first6=Carlos | last7=Guerrero | first7=Pablo C. | last8=Hernández | first8=Héctor M. | last9=Kohlbecker | first9=Andreas | last10=Köhler | first10=Matias | last11=Luther | first11=Katja | last12=Majure | first12=Lucas C. | last13=Müller | first13=Andreas | last14=Metzing | first14=Detlev | last15=Nyffeler | first15=Reto | last16=Sánchez | first16=Daniel | last17=Schlumpberger | first17=Boris | last18=Berendsohn | first18=Walter G. | title=Cactaceae at Caryophyllales.org – a dynamic online species-level taxonomic backbone for the family | journal=Willdenowia | publisher=Botanic Garden and Botanical Museum Berlin, Freie Universitaet Berlin | volume=51 | issue=2 | date=2021-08-31 | issn=0511-9618 | doi=10.3372/wi.51.51208 | page=| doi-access=free }}

class="wikitable"
ImageScientific nameCommon NameDistribution
120pxPolaskia chendechende, chinoaOaxaca & Puebla Mexico
120pxPolaskia chichipechichipe, chichibe, chichitunaOaxaca & Puebla Mexico

References

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