Antennaria suffrutescens |
Antennaria stenophylla |
|
---|---|---|
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 |
CA; OR
|
ID; NV; OR; WA
|
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 | ||
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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