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Erigeron scopulinus
G.L. Nesom & Roth
Family:
Asteraceae
Winn Falls Fleabane
Images
not available
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Perennials,
0.5-3.5 cm (mat-forming); taprooted (taproots weakly developed, often not evident), caudices with system of relatively slender, basal offsets and slender, woody rhizomes (1-15 cm).
Stems
(bases greenish) decumbent to ascending (flowering erect, scapiform), sparsely strigose, eglandular.
Leaves
basal (persistent); blades (bases greenish) spatulate (often folding), 5-12 × 1-3.5 mm, margins entire, faces glabrous or sparsely strigose, eglandular.
Heads
1.
Involucres
4-4.5 × 4-7 mm.
Phyllaries
in 3-4(-5) series (erect, apices appressed), glabrous or sparsely strigose, sometimes minutely glandular.
Ray florets
10-20; corollas white, 5.5-9 mm, laminae reflexing.
Disc corollas
2.8-3.8 mm (throats slightly indurate and inflated).
Cypselae
1.5-1.8 mm, 2(-3)-nerved, faces sparsely strigose;
pappi:
outer of setae, inner of 13-18 bristles.
2
n
= 18.
Flowering May-Jun(-Jul). Crevices and soil pockets of porphyritic or rhyolitic cliffs; 2000-2900 m; Ariz., N.Mex.
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Development supported by National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
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