Sphaeromeria argentea
Trans. Amer. Philos. Soc., n. s. 7: 402. 1841.
Common names: Silver chickensage Nuttall’s false sagebrush
Endemic
Synonyms: Tanacetum nuttallii Torrey & A. Gray
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.
... more about "Sphaeromeria argentea"
introrse +
connate +
truncate +
lobed;3(-5)-toothed +
scarious +
ovate +
hirsute +
papillate +
absent +
continuous +
decurrent +
entire +
lobed;3-toothed;lobed;obovate;cuneate or linear +
stigmatic +
absent +
bright-yellow +
absent +
lacking +
dimorphic +
2mm;2.5mm +
staminate +
straight +
gland-dotted;gland-dotted +
silvery-canescent +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
disciform +
singly +
indeterminate +
2;7 +
surrounding +
hemispheric;campanulate +
alternate +
basal +
deltate +
lobed +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
herbaceous +
falling +
tomentose +
Trans. Amer. Philos. Soc., n. s. +
1841 +
absent +
epaleate +
conic;nearly flat +
fibrous +
exalbuminous +
modifed +
2;3 +
Endemic +
alternate +
branched +
gland-dotted +
erect +
canescent +
2-branched +
glabrous +
papillate +
Sphaeromeria argentea +
Sphaeromeria +
species +
campanulate +
cylindric +
perennial +
subshrub +