| | Species | coum | Sub-species | coum | Variety | Forma |
| | Cultivar Name | Broadleigh Silver | Registration | Registrant |
| | Originator | Published Date | Published in |
| | Patent | Patent Grant |
| | Trade Mk | TM Issue Auth. | TM Grant No. |
| | Trade designations |
| | Meaning of name |
| | Herbarium Dep. | Illustration | Awards |
| | Wild location |
| | Unnamed origin | This cultivar originates from plants purchased by Basil Smith at a Royal Horticultural Society Show from Broadleigh Gardens' stand. |
| | Raiser name | Broadleigh Gardens | Raiser Year | 0 | | Plants raised % | 0 |
| | Seed Parent | Pollen Parent | Ave No Seeds | 0 |
| | Distinctive | Originally thought to have originated from the Pewter Group, this is a very varied but extremely attractive group of plants, |
| | variable in leaf size and degree of pewter on the leaves (some are attractively silvered rather than pewtered), and the flowers |
| | range considerably in size and shape, as well as markings. Most are rather dainty plants, producing many flowers and prolific |
| | seed. In many, but by no means all, the petal lobes spread outwards in the manner of C. trochopteranthum, and some are |
| | Resemblance | Difference |
| | Leaf description | Pewter coloured upper leaf surface |
| | Leaf length | 0 | | Leaf width | 0 |
| | Flwr description | In many, but by no means all, the petal lobes spread outwards in the manner of C. trochopteranthum, and some are deliciously scented. |
| | In others, the petals spread up at a more oblique angle or are completely reflexed in the manner of true C. coum. In addition, the nose |
| | markings range from a solid deep blotch to a paler and less distinct blotch or several diverging lines, sometimes a single central line only. |
| | Flower colour | Petal length | 0 | | Petal width | 0 |
| | Flower scent | some are deliciously scented |
| | Tuber | Tuber Dia. (mm) | 0 |
| | Roots | Seed pod |
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