|Crucifixion Thorn, Canotia holacantha;|
Photo Taken April 25, 2005 Near Hillside, Arizona.
|15 Foot Crucifixion Thorn|
On A hillside.
|Woodpecker Hole In Branch|
Off Of Thick Trunk.
|Crucifixion Thorn.||Canotia holacantha.|
|Crucifixion Thorn Flowers.||Canotia holacantha Seed Pods|
|Crucifixion Thorn Seed Pods.||Canotia holacantha Seed Pods.|
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A large diecious shrub or small tree, up to 10 - 15 feet tall with gray - green, rigid branches that are tipped with sharp thorns; leaves reduced to deciduous scales.
Named for its gray - green, smooth rigid twigs, up to 8" long and about 1/4" in diameter that are tipped by sharp spines. The leaves are insignificant and short-lived. The stems and bark do most of the photosynthetic work for the plant.
Has male and female flowers on separate plants; female flowers followed by a ring composed of 5-10 flattened 1-seeded segments which can survive for years.
The female shrubs bear persistant clusters of woody red - brown capsules with 5 valves, each about 1/2 inch long.
Height: 8 to 10 feet tall average, some up to about 12 - 15 feet.
Trunk: Up To About 2 1/2 Foot Thick. A single trunk sometimes with a few branches. Each branch can be 8" - 10" in diameter.
Stems: The young branches are covered with short, fine hairs; the older branches are streaked with gray-brown bark.
Flowers: Red - brown, 5-petaled flowers less than 1/2 inch wide, in axillary clusters bloom in June and July. Has male and female flowers on separate plants.
Flowering Time: June - July.
Fruit: Clusters of red - brown seeds about 1/2 inch long hang down in groups of 5. Seeds may persist for several years.
Leaves: When present are scalelike.
Found: Native to the USA (AZ). Also native to northern Mexico in northern Sonora.
Soil pH requirements:
Elevation: 500 - 4,500 Feet.
Habitat: Dry, rocky desert washes, slopes and plains.
Miscellaneous: Photos Taken April 25, 2005. Near Hillside, Arizona.
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