Antennaria pulcherrima

(Hooker) Greene

Pittonia 3: 176. 1897

Common names: Showy or handsome pussytoes antennaire magnifique
Basionyms: Antennaria carpatica var. pulcherrima Hooker Fl. Bor.-Amer. 1: 329. 1834
Synonyms: Antennaria pulcherrima var. angustisquama A. E. Porsild Antennaria pulcherrima var. sordida B. Boivin
Treatment appears in FNA Volume 19. Treatment on page 400. Mentioned on page 389, 393, 394, 399.
Dioecious. Plants (8–)30–65 cm (caudices branching or rhizomes stout). Stolons none. Basal leaves 3–5-nerved, spatulate to oblanceolate or lanceolate, 50–200 × 4–25 mm, tips acute, mucronate, faces gray-pubescent or silvery sericeous. Cauline leaves linear, 8–140 mm, distal flagged or not. Heads 3–30 in corymbiform to paniculiform arrays. Involucres: staminate 5–8 mm; pistillate 7–12 mm. Phyllaries distally black, dark brown, light brown, castaneous, or olivaceous. Corollas: staminate 3–5 mm; pistillate 3–6 mm. Cypselae 1–1.5 mm, glabrous; pappi: staminate 4–6 mm; pistillate (5–)8–10 mm. 2n = 28, 56.

Discussion

Subspecies 2 (2 in the flora).

Antennaria pulcherrima is characterized by relatively large basal leaves, rhizomatous growth, and dark-colored phyllaries, each with a relatively large black spot at the base (R. J. Bayer and G. L. Stebbins 1987).

References

None.

Key

1 Cauline leaves: distal usually flagged; corollas: staminate 3.5–5 mm; pistillate 4–6 mm; wet sites, willow thickets, subalpine or subarctic, Colorado to Alaska, e to Ontario, w Quebec Antennaria pulcherrima subsp. pulcherrima
1 Cauline leaves: mostly not flagged (sometimes flagged near heads); corollas: staminate 3–4 mm; pistillate 3–4.3 mm; limestone near sea level, w Newfoundland, Anticosti Island Antennaria pulcherrima subsp. eucosma