In her notes, Silvia Saunders mentioned there can be red petaloids mixed in with the stamens.  I haven’t observed this in my garden, perhaps because my plant is still young.  The petals have a velvety look to them.  They are a really unique color and this cultivar should be sought out if you like a darker red.  Mine is planted in front of the little white flowered ‘Late Windflower’ and the contrast is great.

The top photo was taken in the Jurik garden. The rest are from my garden.  Note the unusual striped anthers.

Cultivar: Bordeaux
Year: 1943
Seedling No: 5720. Page 121 of Saunders’ Notebook I
Parentage: 5: lactiflora 447X officinalis ‘Sabini’
Flower: Color: wine-red (Saunders described it as claret colored)
Form: single, 2 rows of petals, open with large center of stamens
Blooms: Week 4
Carpels: 5, bright green, slightly woolly
Stigmas: dark pink
Disc: white, tinged pink
Stamens: red filaments; red stripe continues up through anthers
Plant: Habit: upright
Foliage color: medium green
Foliage form: fairly narrow leaves, some lobed
Height: 29″ in 2021
Recommendation: Recommended
Availability: Rare