| But with autumn crocus and colchicum I extended my planting pleasure by several weeks. |
| Plants which contain alkaloids may also be highly toxic, such as colchicum, or alternatively harmless, such as borage. |
| A peculiar principle discovered by Gieger and Hesse in the seeds of the colchicum autumnale or common meadow saffron. |
| So Darwin had his urine tested, followed Bence Jones's special diet, and dosed himself with colchicum, a dangerously corrosive specific for gout. |
| The chief constituents of colchicum are two alkaloids, colchicine and veratrine. |
| Another flower well worth waiting for is the autumn colchicum, Colchicum speciosum. |
