Opuntia basilaris Engelm. & Bigelow  
Family: Cactaceae
beavertail pricklypear,  more...
Opuntia basilaris image
Sue Carnahan  
Shrubs, forming clumps, 1-2(-3) segments tall, to 7-40 cm. Stem segments not disarticulating, blue- to yellow-green, sometimes tinged maroon-purple, flattened, spat-ulate to broadly obovate or subcircular, thick, 5-22(-35) × 2-13.5(-16) cm, nearly smooth, papillose to puberulent (rarely glabrous); areoles 4-16(-19) per diagonal row across midstem segment, circular to elliptic, 3-5 × 3 mm; wool white to tan, aging gray. Spines 0(-8) per areole, when present, usually in distal areoles, spreading, yellow, straight, acicular, 5-25 mm. Glochids numerous, nearly filling areoles, yellow to red-brown or dark brown, to 3 mm. Flowers: inner tepals pink to magenta throughout (rarely white), 25-40 mm; filaments red-magenta (rarely pale); anthers yellowish; style white to pink; stigma lobes white to cream. Fruits maturing tan, 20-40 × 15-23 mm, dry at maturity, puberulent, spineless (except in var. treleasei); umbilicus 5-12 mm deep; areoles 24-76. Seeds yellowish to tan, ± subspheric but angular, thick, 6.5-9 × 6.5-7 mm, sides smooth or bearing 1-3 depressions; girdle protruding to 1 mm.
Plant: clump-forming shrub, 1-2(-3) pads and 7-40 cm tall. PADS blue- to yellow-green, sometimes tinged maroon-purple, papillose to puberulent, rarely glabrous, spatulate to broadly obovate or subcircular, thick, 5-22(-35) cm long, 2-13.5(-16) cm broad. AREOLES 4-16(-19) in a row diagonally across midpad, circular to elliptic, 3-5 mm long, 3 mm wide; wool white to tan, aging gray Leaves: SPINES, when present, mostly in distal areoles, yellow, straight, spreading, 0(-8) per areole, 5-25 mm. GLOCHIDS numerous, nearly filling the areoles, yellow to red- or dark brown, to 3 mm long Flowers: inner tepals pink to magenta, rarely white; filaments deep pink to magenta; style white to pink; fresh stigmas white to cream Fruit: FRUITS maturing dry and tan, puberulent, spineless except in var. treleasei, 2-4 cm long, 1.5- 2.3 cm in diameter, the umbilicus 5-12 mm deep; areoles 24-76. SEEDS yellowish to tan, subcircular but angular, thick, 6.5-9 mm long, 6.5-7 mm wide, the sides smooth or bearing 1-3 depressions; girdle protruding to 1 mm. Misc: 350-1700 m (1200-5600 ft); Feb-Jun REFERENCES: Pinkava, Donald J. Cactaceae. 2003. J. Ariz. - Nev. Acad. Sci. Volume 35(2).
Opuntia basilaris image
Dorde Woodruff  
Opuntia basilaris image
Dorde Woodruff  
Opuntia basilaris image
Susan Holiday  
Opuntia basilaris image
Ries Lindley  
Opuntia basilaris image
Tony Frates  
Opuntia basilaris image
Ries Lindley  
Opuntia basilaris image
Tony Frates  
Opuntia basilaris image
Sue Carnahan  
Opuntia basilaris image
Zachery Berry  
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image
Opuntia basilaris image