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FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Antennaria

27d. Antennaria rosea Greene subsp. rosea

Antennaria acuminata Greene; A. alborosea A. E. Porsild; A. chlorantha Greene; A. formosa Greene; A. hendersonii Piper; A. imbricata E. E. Nelson; A. lanulosa Greene; A. neodioica Greene var. chlorantha (Greene) B. Boivin; A. oxyphylla Greene; A. rosea subsp. divaricata E. E. Nelson; A. speciosa E. E. Nelson

Plants 10–40 cm. Stolons 2–7 cm. Basal leaves spatulate, oblanceolate, or cuneate, 20–40 mm, faces usually gray-pubescent, adaxial sometimes green-glabrous. Cauline leaves 8–36 mm. Heads 6–20. Involucres: pistillate 5–8 mm. Phyllaries distally usually green, pink, red, or white, seldom brown. Corollas: pistillate 3–4.5 mm. Pappi: pistillate 4–6 mm. 2n = 42, 56.

Flowering summer. Dry to moist habitats, tundra, rock outcrops, fields, meadows, forests, savannas, and roadcuts, other similarly disturbed places; 400–3800 m; Alta., B.C., Man., N.W.T., Ont ., Sask., Yukon; Alaska, Calif., Colo., Idaho, Mich., Minn., Mont., N.Dak., Oreg. Utah, Wash., Wyo.

Subspecies rosea is most closely related to Antennaria corymbosa and A. racemosa (R. J. Bayer 1989e), as shown by its relatively long basal leaves ranging from gray-pubescent to adaxially green-glabrous.

Subspecies rosea is expected to occur in Nevada.


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