Opuntia engelmannii
Habit | cacti-succulent
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Lifespan: | ⌛ | perennial |
Origin: | ✈ | SW United States, N Mexico |
Exposure: | ☼ | sun |
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Water: | ◍ | dry |
Features: | ✓ | flowers |
Flower features: | ❀ | yellow |
Opuntia > |
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Opuntia engelmannii is a prickly pear common across the southwestern United States and northern Mexico. It goes by a variety of common names, including "cow's tongue cactus", "cow tongue prickly pear", "desert prickly pear", "discus prickly pear", "Engelmann's prickly pear", and "Texas prickly pear" in the US, and "nopal", "abrojo", "joconostle", and "vela de coyote" in Mexico.
Its overall form is generally shrubby, with dense clumps up to 3.5 m high, usually with no apparent trunk. The pads are green (rarely blue-green), obovate to round, about 15-30 cm long and 12-20 cm wide. The glochids are yellow initially, then brown with age. Spines are extremely variable, with anywhere from 1-8 per areole, and often absent from lower areoles; they are yellow to white, slightly flattened, and 1-6 cm long. The flowers are yellow, occasionally reddish, 5-8 cm in diameter and about as long. The purple fleshy fruits are 3-7 cm long.
Its range extends from California to Louisiana in the US, and Baja California to Chihuahua in Mexico.
Flowering is in April and May, with each bloom lasting only one day, opening at about 8AM and closing 8 hours later. Pollinators include solitary bees, such as the Antophoridae, and sap beetles.
In the Sonoran Desert, terminal pads face predominantly east-west, so as to maximize the absorption of solar radiation during summer rains. Although found occasionally in the Mojave Desert, it tends to be replaced by Opuntia basilaris, which does not need the summer rain.
ExpandRead about Opuntia engelmannii in the Standard Cyclopedia of Horticulture
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Cultivation
Propagation
Pests and diseases
Varieties
Gallery
References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Opuntia engelmannii. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Opuntia engelmannii QR Code (Size 50, 100, 200, 500)