Flora of the Canadian Arctic Archipelago

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S.G. Aiken, M.J. Dallwitz, L.L. Consaul, C.L. McJannet, R.L. Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, L.J. Gillespie, A.K. Brysting, H. Solstad, and J.G. Harris

Linaceae A.S. Gray

Linaceae, Flax family.

Vegetative morphology. Plants 10–30(–60) cm high; perennial herbs. Taproot present. Ground level or underground stems vertical. Aerial stems developed; erect. Leaves distributed along the stems; alternate; dying annually and non-persistent. Petioles absent. Leaf blade bases obtuse. Blades (4–)6–12 mm long (to 25 mm long in specimens from continental North America), 0.5–2.5 mm wide, divaricate, linear, flat, appearing single-veined or with inconspicuous veins. Blade adaxial surface glabrous. Blade abaxial surface glabrous. Blade margins glabrous; apices acute.

Reproductive morphology. Inflorescences racemose. Flowers per inflorescence 2–6; medium-sized. Sepals conventional; 5; free; green (sepals with conspicuous transparent margins). Calyx glabrous. Petals conventional; free; 5; blue (or rarely white, fading to pale yellow); with contrasting markings (darker insect guidelines in the petals and a yellow throat); obovate; unlobed; 5–9 mm long. Stamens 5. Anthers reddish, becoming yellow. Ovary superior; carpels 5; syncarpous. Styles free. Placentation axile. Ovules per ovary 10 (2 per locule). Fruit stalked; with calyx persisting; dry; a capsule; ovoid; brown; 4–5 mm long; 4–5 mm wide; surface venation ribbed; not distinctly flattened; dehiscent. Seeds 10 (with two large seeds per locule); 2.5–3.5 mm long; brown; surfaces ridged.


This publication is available on the internet (posted May 2011) and on CD-ROM (published in 2007). These versions are identical in content, except that the errata page for CD-ROM is accessible on the main index page of the web version.

Recommended citation for the web-based version of this publication: Aiken, S.G., Dallwitz, M.J., Consaul, L.L., McJannet, C.L., Boles, R.L., Argus, G.W., Gillett, J.M., Scott, P.J., Elven, R., LeBlanc, M.C., Gillespie, L.J., Brysting, A.K., Solstad, H., and Harris, J.G. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. NRC Research Press, National Research Council of Canada, Ottawa. http://nature.ca/aaflora/data, accessed on DATE.

Recommended citation for the CD-ROM version of this publication: Aiken, S.G., Dallwitz, M.J., Consaul, L.L., McJannet, C.L., Boles, R.L., Argus, G.W., Gillett, J.M., Scott, P.J., Elven, R., LeBlanc, M.C., Gillespie, L.J., Brysting, A.K., Solstad, H., and Harris, J.G. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. [CD-ROM] NRC Research Press, National Research Council of Canada, Ottawa.

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