Stanly's cholla (Grusonia emoryi)
Description
Grusonia emoryi grows lowly and forms richly branched mats of 15 to 30 centimeters height. The roots are fibrous. The curved lobe-shaped, to their base gradually or abruptly narrowed drive portions are 7 to 19 centimeters long and have diameters of 2.5 to 5 centimeters. They are occupied by striking 2 to 5 centimeters long bumps. The circular areoles are filled with white to gray wool and yellow to brown glochids , which are 5 to 7 millimeters long. The yellow, reddish-brown or ocher-colored thorns are regularly distributed over the shoots or are located only on the areoles near the shoot tips. The upper three to five spines, Sometimes only one single is present, are ascending, spreading, and angular to flattened to almost three degrees. The lower three to five spines are spreading and sharp-edged to flattened. The yellow flowers reach lengths of 2 to 3 centimeters. The cylindrical to ellipsoidal, yellow fruits are fleshy and covered with dense yellow glochids. They are 4 to 9 centimeters long and have a diameter of 1.4 to 4 centimeters.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Cactaceae
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Genus: Grusonia
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