Difference between revisions of "Linum bienne"
Gard. Dict. ed. 8, Linum no. 8. 1768.
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|special status=Weedy;Introduced | |special status=Weedy;Introduced | ||
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|genus=Linum | |genus=Linum | ||
|section=Linum sect. Linum | |section=Linum sect. Linum | ||
Revision as of 19:01, 16 December 2019
Herbs, biennial or short-lived perennial (flowering 1st year), 6–60 cm, glabrous. Stems erect, usually branched from near base and in inflorescence. Leaves: blade linear to linear-lanceolate, 5–25 × 1–1.5 mm. Inflorescences open panicles. Pedicels 10–25 mm. Flowers homostylous; sepals ovate, 4–5.5 mm, margins of inner sepals minutely ciliate, outer glabrous, apex acute to acuminate; petals blue, obovate, 6–10 mm; stamens 4–5 mm; anthers 1–2.5 mm; staminodia present or absent; styles distinct, 2 mm; stigmas linear or clavate. Capsules broadly ovate to subglobose, 4–6 × 4–6 mm, apex very sharp-pointed, segments ± persistent on plant, margins ciliate. Seeds 2.5–3 × 1.5–2 mm. 2n = 30.
Phenology: Flowering Mar–Aug.
Habitat: Grasslands, woodlands, disturbed places.
Elevation: 0–1900 m.
Distribution
B.C., Calif., Oreg., Pa., Europe, n Africa, introduced also in South America (Argentina, Chile), Pacific Islands (New Zealand).
Discussion
Linum bienne is thought to be the progenitor of L. usitatissimum (D. J. Ockendon 1971).
Selected References
None.