1. Stem segment bearing spines |
15No, essentially spineless | 37Yes, evenly distributed | 18Yes, in distal areoles |
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2. Flower color, main |
60Red, pink | 6White | 153Yellow, orange |
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3. Fruit color |
46Blue/purple | 11Brown/maroon | 21Green | 74Red/pink | 1White | 16Yellow/orange |
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4. Trunk |
111Absent | 44Present |
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5. Glochids present |
5No | 3Yes |
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6. Spine number per areole |
39Under 1 841 1092 1083 834 715 576 397 308 199 1710 17Over 10 |
7. Spine color |
17Black 43Brown 16Gray 1Pink 22Red 72White 63Yellow |
8. Spine length in cm |
15Under 1 431 692 673 534 345 286 127 88 39 510 112 113 |
9. Stem segment length in cm |
3Under 1 41 82 113 154 255 296 387 428 399 6010 5411 5612 5713 5714 7615 7016 7117 7018 7119 8520 7421-28 3929 4330 2631-38 1939 1840 10Over 40 |
10. Range |
3Canada 20Caribbean 1Guatemala 84Mexico 75South America 47United States |