Flora of North America species comparison

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Antennaria suffrutescens

Antennaria solitaria

evergreen everlasting, evergreen pussytoes, everlasting pussytoes, shrubby pussytoes, Siskiyou everlasting

singlehead pussytoes
Habit Dioecious. Dioecious.
Plants

5–12 cm (densely tufted, bases woody; root crowns relatively slender).

2–25(–35) cm.
Stolons

none.

5.5–20 cm (filiform).
Basal leaves

absent at flowering.

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

spatulate, 5–12 × 2–4 mm, not flagged (apices emarginate or obtuse, abaxial faces tomentose, adaxial green).

linear, 1–17 mm, distal flagged.
Involucres

staminate 5–9 mm; pistillate 10–15 mm.

staminate 8–11 mm; pistillate 8–14 mm.
Corollas

staminate 4–5 mm; pistillate 5–8 mm.

staminate 3.8–5.5 mm; pistillate 4.5–7 mm.
Phyllaries

(relatively wide) distally white.

(bases green or brown) distally white.
Heads

borne singly.

borne singly.
Cypselae

1–2 mm, papillate;

pappi: staminate 4.5–5.5 mm; pistillate 7–9 mm.

1–2 mm, papillate;

pappi: staminate 4.5–7 mm; pistillate 6–9 mm.
2n

= 28.

= 28.

Antennaria suffrutescens

Antennaria solitaria
Phenology Flowering early summer. Flowering early–mid spring.
Habitat Dry, open coniferous woods or barren slopes on serpentine Slopes or stream banks in moist, rich, deciduous woodlands, forests, sometimes forest openings
Elevation 500–1600 m (1600–5200 ft) 0–1500 m (0–4900 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; GA; IN; KY; LA; MD; MS; NC; OH; PA; SC; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
Discussion

Antennaria suffrutescens is characterized by suffrutescent growth form, relatively small, emarginate, adaxially glabrous, coriaceous leaves, and relatively large heads borne singly. It is known only from serpentine soils in open montane pine forests in Curry and Josephine counties, Oregon, and neighboring Del Norte and Humboldt counties, California (R. J. Bayer and G. L. Stebbins 1987). Antennaria suffrutescens may have contributed to the origin of some of the clones of the A. rosea complex (e.g., J. T. Howell 27718, NY).

(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. 408. FNA vol. 19, p. 401.
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. lanata, 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. 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. microphylla, A. monocephala, A. neglecta, A. parlinii, A. parvifolia, A. plantaginifolia, A. pulchella, A. pulcherrima, A. racemosa, A. rosea, A. rosulata, A. soliceps, A. stenophylla, A. suffrutescens, A. umbrinella, A. virginica
Synonyms A. plantaginifolia var. monocephala, A. monocephala
Name authority Greene: Pittonia 3: 277. (1898) Rydberg: Bull. Torrey Bot. Club 24: 304. (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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