The Flax Family

Stiff Yellow Flax Common Flax Stiff Yellow Flax Ridged Yellow Flax

What are they?

The most famous member of the flax family is the blue-flowered species from which we make linen, but flax flowers also come in pink, red, white and yellow. Most species are short to medium herbaceous perennials or annuals and typically grow in open, sunny habitats.

Where are they found?

Flaxes generally like open, sunny positions with most growing in old fields and grassy waysides. Some, however, also occur in wetter habitats.

Identification

The native, yellow-flowered flaxes of North America can be quite tricky to identify and there has been much confusion in books in the past. Detailed attention needs to be paid to all parts of the flower, especially the sepals and stamens.



Common Flax      Linum usitatissimum

Introduced from Europe as a crop plant to produce linen. Now an occasional escape from cultivation, mostly as a constituent of so-called 'wildflower' mixes. Flowers June to August.
Common Flax Common Flax Common Flax
Flower
Flower
Leaves spreading

Ridged Yellow Flax      Linum striatum

In a wide range of usually wet or damp habitats. Flowers June to August.
Ridged Yellow Flax Ridged Yellow Flax Ridged Yellow Flax Ridged Yellow Flax
Habit
Flower
Leaves pressed close
to stem
Stems with distinct ridges

Stiff Yellow Flax      Linum medium

In a wide range of usually dry habitats, but also sometimes on saltmarsh or wetland edge where drier, sandy patches occur. Flowers June to August.
Stiff Yellow Flax Stiff Yellow Flax Stiff Yellow Flax Stiff Yellow Flax
Habit
Close-up of flower
Sepals just longer
than seed pod
Leaves pressed close
to stem

Scarlet Flax      Linum grandiflorum

Introduced from Europe and an occasional constituent of so-called 'wildflower' mixes. Flowers June to September.
Scarlet Flax Scarlet Flax Scarlet Flax Scarlet Flax
Habit
Flower
Sepals
Leaves relatively broad