Sphaeromeria simplex
Muhlenbergia 1: 7. 1900.
Common names: Laramie chickensage
EndemicConservation concern
Basionym: Tanacetum simplex A. Nelson Bull. Torrey Bot. Club 26: 484. 1899
Perennials, 1.5–2.5 (–8) cm (cespitose, bases sometimes woody). Stems erect to decumbent, sericeous. Leaves mostly basal; blades (15–30 × 1.5–8 mm) pinnati-palmately lobed (lobes 2–3, linear, 1–2 mm wide) or linear, faces silvery-canescent. Heads borne singly. Involucres 4.5–7 mm. Phyllaries (12–) 14–20+, midribs canescent or glabrous. Cypselae (light-brown) 1.8–2.5 mm (faces finely striate).
Phenology: Flowering May–Aug.
Habitat: Dry hills and slopes
Elevation: 2200–2700 m
Distribution
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Wyo.
Discussion
Of conservation concern.
Sphaeromeria simplex is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.
Lower Taxa
None.
... more about "Sphaeromeria simplex"
introrse +
connate +
truncate +
scarious +
ovate +
hirsute +
papillate +
absent +
continuous +
decurrent +
linear;lobed +
stigmatic +
absent +
Laramie chickensage +
bright-yellow +
absent +
lacking +
dimorphic +
1.8mm;2.5mm +
staminate +
Wyo. +
straight +
gland-dotted;gland-dotted +
silvery-canescent +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
disciform +
singly +
indeterminate +
surrounding +
hemispheric;campanulate +
alternate +
basal +
deltate +
lobed +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
tough +
thick +
absent +
connate +
persistent +
distinct +
herbaceous +
falling +
Muhlenbergia +
1900 +
absent +
epaleate +
conic;nearly flat +
fibrous +
exalbuminous +
modifed +
2;3 +
alternate +
branched +
gland-dotted +
sericeous +
2-branched +
glabrous +
papillate +
Sphaeromeria simplex +
Sphaeromeria +
species +
campanulate +
cylindric +
perennial +
subshrub +