Angiosperms (Flowering Plants) • Earth.com

El paso pricklypear

(Opuntia polyacantha arenaria)

galery
en

Description

Opuntia polyacantha grows up to 40 centimetres (16 in) tall.It forms low mats of pads which may be 2–3 metres (6.6–9.8 ft) wide.Its succulent green pads are oval or circular and reach 27 by 18 centimetres (10.6 by 7.1 in) wide.Its areoles are tipped with woolly brown fibers and glochids.Many of the areoles have spines which are quite variable in size and shape.They may be 0.4 to 18.5 centimetres (0.16 to 7.28 in) in length,stout or thin,straight or curling,and any of a variety of colors. The flowers are 2.5 to 4 centimetres (0.98 to 1.57 in) long and may be yellow or magenta in color.The fruit is cylindrical,brownish,dry and spiny.The cactus reproduces by seed,by layering,and by resprouting from detached segments.In its natural range it survives throughout an immense range of temperatures,ranging from minus 50 degrees Fahrenheit in the Yukon Territory,Canada,to well above 100 degrees Fahrenheit in places like Chihuahua,Mexico.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Order:Caryophyllales
Family:Cactaceae
Genus:Opuntia
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