Difference between revisions of "Sphaeromeria argentea"
Trans. Amer. Philos. Soc., n. s. 7: 402. 1841.
Common names: Silver chickensage Nuttall’s false sagebrush
Synonyms: Tanacetum nuttallii Torrey & A. Gray
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Revision as of 20:21, 16 December 2019
Perennials, 5–20 cm (cespitose). Stems erect, canescent. Leaves mostly basal; blades (± cuneate, 7–15 mm) entire or apices 3(–5)-toothed or -lobed, faces silvery-canescent. Heads usually 2–7 in subcapitate to corymbiform arrays (1–1.5 cm across), sometimes borne singly. Phyllaries 12–16, sparsely tomentose. Involucres 3–5(–7) mm. Cypselae 2–2.5 mm (3–5-ribbed, apices with thickened rims, faces glabrous or sparsely gland-dotted). 2n = 18.
Phenology: Flowering Jun–Jul.
Habitat: Dry hills
Elevation: 2000–2600 m
Distribution
Colo., Idaho, Nev., Wyo.
Discussion
Sphaeromeria argentea is moderately tolerant of alkali.
Selected References
None.
Lower Taxa
None.