Antennaria microphylla |
Antennaria solitaria |
|
---|---|---|
little-leaf pussytoes, pink pussytoes, rosy pussytoes, small pussytoes, white pussytoes |
singlehead pussytoes |
|
Habit | Dioecious. | Dioecious. |
Plants | 9–30 cm (stems stipitate-glandular distally). |
2–25(–35) cm. |
Stolons | 1–5 cm. |
5.5–20 cm (filiform). |
Basal leaves | 1-nerved, spatulate, 6–16 × 2–6 mm, tips mucronate, faces silvery gray-pubescent. |
3–5-nerved, obovate to broadly oblong-spatulate, 20–75 × 15–45 mm, tips mucronate, abaxially tomentose, adaxially gray-pubescent to floccose-glabrate. |
Cauline leaves | linear, 5–25 mm, not flagged (apices acute). |
linear, 1–17 mm, distal flagged. |
Involucres | staminate 5–6.5 mm; pistillate 5.5–7 mm. |
staminate 8–11 mm; pistillate 8–14 mm. |
Corollas | staminate 2.5–3 mm; pistillate 3–4.3 mm. |
staminate 3.8–5.5 mm; pistillate 4.5–7 mm. |
Phyllaries | distally bright white to light yellow. |
(bases green or brown) distally white. |
Heads | 6–13 in corymbiform arrays. |
borne singly. |
Cypselae | 0.7–1.2 mm, glabrous or sparingly papillate; pappi: staminate 3–4 mm; pistillate 3–5 mm. |
1–2 mm, papillate; pappi: staminate 4.5–7 mm; pistillate 6–9 mm. |
2n | = 28. |
= 28. |
Antennaria microphylla |
Antennaria solitaria |
|
Phenology | Flowering early–mid summer. | Flowering early–mid spring. |
Habitat | Moist open areas, flood plains of streams, margins of alkaline depressions, lower montane to subalpine (subarctic) | Slopes or stream banks in moist, rich, deciduous woodlands, forests, sometimes forest openings |
Elevation | 0–3200 m (0–10500 ft) | 0–1500 m (0–4900 ft) |
Distribution |
AK; AZ; CA; CO; ID; MN; MT; ND; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; MB; NT; NU; ON; QC; SK; YT
|
AL; AR; GA; IN; KY; LA; MD; MS; NC; OH; PA; SC; TN; VA; WV
|
Discussion | Antennaria microphylla is a primary sexual progenitor of the A. rosea polyploid agamic complex (R. J. Bayer 1990b). A. Cronquist (1955) included A. rosea within his circumscription of A. microphylla. It is preferable to recognize sexual diploids as distinct from their morphologically discrete hybrid apomictic derivatives. Antennaria microphylla is always dioecious and has stems distally stipitate-glandular and white phyllaries; A. rosea is always gynoecious and has stems without glandular hairs and phyllaries only occasionally white. Some authors (A. E. Porsild 1950; E. H. Moss 1959; Porsild and W. J. Cody 1980) have recognized A. nitida as distinct; comparisons of the nomenclatural types of the two show that they are conspecific. Antennaria microphylla has allelopathic properties (G. D. Manners and D. S. Galitz 1985). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
With its relatively large, 3–5-nerved, basal leaves and relatively large heads borne singly, Antennaria solitaria is an easily recognized amphimictic member of the Catipes group (R. J. Bayer and G. L. Stebbins 1982). It is a sexual diploid progenitor of the A. parlinii polyploid complex. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 19, p. 407. | FNA vol. 19, p. 401. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Antennaria | Asteraceae > tribe Gnaphalieae > Antennaria |
Sibling taxa | ||
Synonyms | A. bracteosa, A. microphylla var. solstitialis, A. nitida, A. rosea var. nitida, A. solstitialis | A. plantaginifolia var. monocephala, A. monocephala |
Name authority | Rydberg: Bull. Torrey Bot. Club 24: 303. (1897) | Rydberg: Bull. Torrey Bot. Club 24: 304. (1897) |
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