Flora of North America species comparison

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Antennaria suffrutescens

Antennaria corymbosa

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

flat-top pussytoes, meadow pussytoes
Habit Dioecious. Dioecious.
Plants

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

6–15 cm.
Stolons

none.

1–10 cm.
Basal leaves

absent at flowering.

1-nerved, spatulate, 18–45 × 2–4 mm, tips mucronate, faces ± gray-tomentose.
Cauline leaves

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

linear, 8–13 mm, not flagged (apices acuminate).
Involucres

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

staminate 4–5.3 mm; pistillate 4–5 mm.
Corollas

staminate 4–5 mm; pistillate 5–8 mm.

staminate 2–3.2 mm; pistillate 2.5–3.5 mm.
Phyllaries

(relatively wide) distally white.

(bases each with distinct dark brown or blackish spot) distally white or light brown.
Heads

borne singly.

3–7 in corymbiform arrays.
Cypselae

1–2 mm, papillate;

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

0.5–1 mm, slightly papillate;

pappi: staminate 2.5–3.5 mm; pistillate 3.5–4.5 mm.
2n

= 28.

= 28.

Antennaria suffrutescens

Antennaria corymbosa
Phenology Flowering early summer. Flowering early–mid summer.
Habitat Dry, open coniferous woods or barren slopes on serpentine Moist subalpine-alpine willow thickets in the Rocky and Cascade mountains, the Sierra Nevada and mountains of the Great Basin
Elevation 500–1600 m (1600–5200 ft) 1900–3500 m (6200–11500 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; CO; ID; MT; NM; NV; OR; UT; WA; WY
[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.)

Antennaria corymbosa is characterized by linear-oblanceolate basal leaves and white-tipped phyllaries, each with a distinct black spot near the base of the scarious portion. A form with black phyllaries (A. acuta) occurs sporadically throughout the range of the species (R. J. Bayer 1988). Antennaria corymbosa is a sexual progenitor of the A. rosea complex.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 408. 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. 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. 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. suffrutescens, A. umbrinella, A. virginica
Synonyms A. acuta, A. dioica var. corymbosa, A. hygrophila, A. nardina
Name authority Greene: Pittonia 3: 277. (1898) E. E. Nelson: Bot. Gaz. 27: 212. (1899)
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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