Antennaria parlinii
Antennaria dioica
Parlin's pussytoes
stoloniferous pussytoes
12–35(–45) cm.
3–10 cm.
3.5–11(–14) cm (mostly decumbent when young).
2–5 cm.
3–5-nerved, obovate-spatulate, obovate, rhombic-obovate, or suborbiculate, 30–95 × 12–45 mm, tips mucronate, faces gray-pubescent to floccose-glabrescent.
1-nerved, spatulate or rhombic-spatulate, 3–18 × 3–6 mm, tips mucronate, abaxial faces gray-tomentose, adaxial green-glabrous.
oblong-lanceolate, 3.5–45 mm, distalmost flagged.
linear, 7–13 mm, not flagged (apices acute).
staminate 6–9 mm; pistillate (7–)8–13 mm.
staminate 5–6.5 mm; pistillate 5–7 mm.
staminate 3.5–5 mm; pistillate 4–7 mm.
staminate 3–4 mm; pistillate 4–5 mm.
distally white.
distally dark pink to light pink or white.
4–12(–15) in tight corymbiform arrays.
3–7 in corymbiform arrays.
1–2 mm, minutely papillate;
pappi: staminate 4–5 mm; pistillate 5–8 mm.
0.5–1 mm, papillate;
pappi: staminate 3.5–4.5 mm; pistillate 5–6 mm.
= 56, 84, 70, 112.
= 28.
Antennaria parlinii
Antennaria dioica
Subspecies 2 (2 in the flora).
The Antennaria parlinii complex consists of two fairly distinct subspecies that differ in induments of basal leaves (tomentose in subsp. fallax; glabrous in subsp. parlinii) and other characters (R. J. Bayer and G. L. Stebbins 1982). Antennaria parlinii is the most common eastern North American species (Bayer and Stebbins 1982, 1983). This complex of polyploid sexual and apomictic populations is the result of multiple hybridizations among sexual diploid species including A. plantaginifolia, A. racemosa, and A. solitaria (Bayer 1985b; Bayer and D. J. Crawford 1986). A. Cronquist (1945; H. A. Gleason and Cronquist 1991) included A. parlinii within his circumscription of A. plantaginifolia. By not including the hybrid polyploiid within the circumscription of a single one of its sexual progenitors, the circumscription here better portrays the evolutionary relationships between A. parlinii and its sexual progenitors.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Antennaria dioica ranges from the British Isles to Japan and into the Aleutian Islands (R. J. Bayer 2000). It is characterized by glabrous adaxial leaf faces and distally pink or white phyllaries. The circumscription of A. dioica in North America has long been debated; A. marginata of southwestern states bears a remarkable similarity to A. dioica. DNA sequence data (Bayer et al. 1996) indicate that the two taxa are not sisters; they are only distantly related. They are allopatric. Antennaria dioica may be a sexual progenitor of the A. parvifolia complex.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Stems usually glandless; basal leaves adaxially tomentose | subsp. fallax |
1. Stems usually with purple glandular hairs (at least near summits of young flowering stems); basal leaves adaxially green-glabrous | subsp. parlinii |
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