Flora of North America species comparison

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Antennaria lanata

Antennaria microphylla

woolly everlasting, woolly pussy-toes

little-leaf pussytoes, pink pussytoes, rosy pussytoes, small pussytoes, white pussytoes
Habit Dioecious. Dioecious.
Plants

3–20 cm (caudices branching or rhizomes stout).

9–30 cm (stems stipitate-glandular distally).
Stolons

none.

1–5 cm.
Basal leaves

3-nerved, narrowly oblanceolate, 10–60(–100) × 3–12 mm, tips acute, faces gray-woolly or tomentose.

1-nerved, spatulate, 6–16 × 2–6 mm, tips mucronate, faces silvery gray-pubescent.
Cauline leaves

linear, 5–40 mm, mid and distal flagged.

linear, 5–25 mm, not flagged (apices acute).
Involucres

staminate 4.5–6 mm; pistillate 5–8 mm.

staminate 5–6.5 mm; pistillate 5.5–7 mm.
Corollas

staminate 3–4.5 mm; pistillate 2.5–4 mm.

staminate 2.5–3 mm; pistillate 3–4.3 mm.
Phyllaries

(proximally light brown, dark brown, or olivaceous) distally whitish or light brown.

distally bright white to light yellow.
Heads

3–9 in corymbiform arrays.

6–13 in corymbiform arrays.
Cypselae

1–1.6 mm, glabrous;

pappi: staminate 4–5 mm; pistillate 3.5–5 mm.

0.7–1.2 mm, glabrous or sparingly papillate;

pappi: staminate 3–4 mm; pistillate 3–5 mm.
2n

= 28 (under A. neodioica).

= 28.

Antennaria lanata

Antennaria microphylla
Phenology Flowering summer. Flowering early–mid summer.
Habitat Protected alpine and subalpine sites, gravelly or sandy soils near conifers at timberline Moist open areas, flood plains of streams, margins of alkaline depressions, lower montane to subalpine (subarctic)
Elevation 1400–3400 m (4600–11200 ft) 0–3200 m (0–10500 ft)
Distribution
from FNA
CA; ID; MT; OR; UT; WA; WY; AB; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
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
[WildflowerSearch map]
[BONAP county map]
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.)
Source FNA vol. 19, p. 399. FNA vol. 19, p. 407.
Parent taxa Asteraceae > tribe Gnaphalieae > Antennaria Asteraceae > tribe Gnaphalieae > Antennaria
Sibling taxa
A. alpina, A. anaphaloides, A. arcuata, A. argentea, A. aromatica, A. corymbosa, A. densifolia, A. dimorpha, A. dioica, A. flagellaris, A. friesiana, A. geyeri, A. howellii, A. luzuloides, A. marginata, A. media, A. microphylla, A. monocephala, A. neglecta, A. parlinii, A. parvifolia, A. plantaginifolia, A. pulchella, A. pulcherrima, A. racemosa, A. rosea, A. rosulata, A. soliceps, A. solitaria, A. stenophylla, A. suffrutescens, A. umbrinella, A. virginica
A. alpina, A. anaphaloides, A. arcuata, A. argentea, A. aromatica, A. corymbosa, A. densifolia, A. dimorpha, A. dioica, A. flagellaris, A. friesiana, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. marginata, A. media, A. monocephala, A. neglecta, A. parlinii, A. parvifolia, A. plantaginifolia, A. pulchella, A. pulcherrima, A. racemosa, A. rosea, A. rosulata, A. soliceps, A. solitaria, A. stenophylla, A. suffrutescens, A. umbrinella, A. virginica
Synonyms A. carpatica var. lanata A. bracteosa, A. microphylla var. solstitialis, A. nitida, A. rosea var. nitida, A. solstitialis
Name authority (Hooker) Greene: Pittonia 3: 288. (1898) Rydberg: Bull. Torrey Bot. Club 24: 303. (1897)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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