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

Androsace L.

Primulaceae, Primrose family.

Published in Sp. Pl. 141. 1753.

Vegetative morphology. Plants 2–15(–30) cm high; annual herbs, or biennial herbs, or perennial herbs. Taproot present. Ground level or underground stems horizontal, or absent; 0.4–0.6 mm wide. Horizontal stems at ground level, branching extensively to shape plant habit as mats, or cushions. Caudex present, or absent. Aerial stems a small transition zone between taproot and basal leaves; erect. Leaves basal in a rosette; whorled; dying annually and non-persistent. Petioles absent. Leaf blade bases truncate. Blades 2–20 mm long, 1–5 mm wide, linear or lanceolate or obovate, flat, veins pinnate. Blade adaxial surface hairy, hairs pubescent or villous, hairs simple, hairs sparse or moderately dense or dense, hairs white, or translucent. Blade abaxial surface glabrous or hairy, hairs sparse to moderately dense, hairs white. Blade margins entire or serrulate, with teeth toward the apex (if applicable); apices acute, or obtuse.

Reproductive morphology. Flowering stems without leaves. Flowers solitary, or in inflorescences. Inflorescences with flowers in umbels; 0.5–2 cm long. Flowers small. Sepals conventional; 5; fused; 2–4 mm wide; green. Calyx bell-shaped, or funnel-form; 5-lobed; glabrous, or hairy. Calyx hairs puberulent, or villous; glandular, or non-glandular; white or translucent. Petals conventional; fused; longer than the calyx (corolla-tube shorter than the calyx); 5; white, or yellow, or pink; with contrasting markings (contrast between the petals and the throat); 4–9 mm long. Corolla rotate; 5-lobed. Stamens 5; fused to the corolla. Anthers yellow; 0.4–0.9 mm long. Ovary carpels 5. Ovaries sub-globose; glabrous. Styles 1. Stigmas per ovary 1. Placentation free central. Fruit with calyx persisting; dry; a capsule; spherical, or bell-shaped; black, or brown, or golden brown; 2–3 mm long; 2–3 mm wide; dehiscent. Seeds 5–15; 1.2–1.6 mm long; brown; surfaces smooth, reticulate.


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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