Linum grandiflorum


Fl. Atlant. 1: 277, plate 78. 1798.

Common names: Flowering or red or scarlet or crimson flax
Treatment appears in FNA Volume 12. Treatment on page 377. Mentioned on page 373, 374.

Herbs, annual, 10–60 cm, glabrous, glaucous. Stems ascending or sometimes decumbent at base, usually freely branched. Leaves: blade linear to lanceolate or narrowly elliptic, 10–30 × 2–3(–7) mm. Inflorescences cymes, few-flowered. Pedicels 10–25 mm. Flowers heterostylous; sepals lanceolate, 7–11 mm, margins glabrous, apex acuminate; petals bright red to maroon, fading to purple, broadly obovate, 15–30 mm; stamens 8–10 mm; anthers 5 mm; staminodia not seen; styles connate proximal 1/2, 4.5 mm (short-styled) or 8–10 mm (long-styled); stigmas clavate. Capsules ovoid-globose, 6–7 mm diam., apex apiculate, segments persistent on plant, margins not seen. Seeds 2–3 × 0.5–1 mm. 2n = 16.

Phenology: Flowering Apr–Sep.
Habitat: Disturbed areas.
Elevation: 0–2700 m.


V12 370-distribution-map.jpg

Introduced; Calif., Colo., Fla., Ky., Nebr., N.Y., Ohio, Pa., Tex., Utah, n Africa.


Linum grandiflorum occasionally escapes from gardens and persists along roadsides and trails. This showy garden plant has blue anthers.

Selected References


Lower Taxa