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

narrow-leaf pussytoes, narrowleaf everlasting

Habit Dioecious. Dioecious.
Plants

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

(3–)10–15 cm.

Stolons

none.

none.

Basal leaves

absent at flowering.

1-nerved, linear to narrowly oblanceolate, 15–50 × 1–2(–4) mm, tips acute, not flagged, faces ± gray tomentose.

Cauline leaves

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

(gradually reduced distally) narrowly linear, 5–60 mm, distalmost flagged.

Involucres

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

staminate 4–5 mm; pistillate 4–6.5 mm.

Corollas

staminate 4–5 mm; pistillate 5–8 mm.

staminate 2.5–3.5 mm; pistillate 2.5–4 mm.

Phyllaries

(relatively wide) distally white.

distally light brown, dingy brown, or olivaceous (apices acute-acuminate).

Heads

borne singly.

2–8(–10) in subcapitate arrays.

Cypselae

1–2 mm, papillate;

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

1–1.8 mm, glandular-puberulent;

pappi: staminate 3–4.5 mm (bristles barbellate at tips); pistillate 3–4.5 mm.

2n

= 28.

= 56.

Antennaria suffrutescens

Antennaria stenophylla

Phenology Flowering early summer. Flowering in late spring–early summer.
Habitat Dry, open coniferous woods or barren slopes on serpentine Dry, often sagebrush (Artemisia) covered hillsides and dry margins around seasonally moist depressions in sagebrush steppe of the Great Basin and Columbia Plateau
Elevation 500–1600 m (1600–5200 ft) 1500–2300 m (4900–7500 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; NV; OR; WA
[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 stenophylla is a xerophyte in the Argenteae group. It is distinguished by relatively narrow leaves, heads in subcapitate clusters, and light brown, dingy brown, or olivaceous phyllary tips.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 19, p. 408. FNA vol. 19, p. 398.
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. solitaria, A. suffrutescens, A. umbrinella, A. virginica
Synonyms A. alpina var. stenophylla, A. leucophaea
Name authority Greene: Pittonia 3: 277. (1898) (A. Gray) A. Gray: Proc. Amer. Acad. Arts 17: 213. (1882)
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