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Arizona - New Mexico Chapter
Consortium of Midwest Herbaria
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Madrean Archipelago Biodiversity Assessment (MABA) - Flora
Red de Herbarios del Noroeste de México (northern Mexico)
SERNEC - Southeastern USA
Erigeron linearis
(Hook.) Piper
Family:
Asteraceae
Desert Yellow Fleabane
[
Erigeron peucephyllus
A.Gray,
more
Erigeron yakimensis
]
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Perennials,
5-15(-20) cm; taprooted, caudices branched, woody.
Stems
erect to slightly basally ascending, sparsely strigose (hairs white), eglandular.
Leaves
mostly basal (persistent) or basal and cauline; basal blades linear to linear-oblanceolate, (15-)30-70(-90) × 0.5-3 mm, cauline (on proxi mal
1
/ 3 -
2
/ 3 of stems) slightly reduced (bases abruptly widened, thickened, white-indurate, sheathing stem) margins entire, faces loosely strigose, eglandular.
Heads
1(-3).
Involucres
4-7 × 8-13 mm.
Phyllaries
in 2-3(-4) series, strigose to villous, minutely glandular.
Ray florets
25-38; corollas usually bright yellow, sometimes cream to nearly white, 4-8 mm, laminae weakly coiling.
Disc corollas
3.5-5.3 mm.
Cypselae
2-2.3 mm, 2-nerved, faces sparsely strigose;
pappi:
outer of setae, inner of 10-20 bristles.
2
n
= 18, 27, 36, 45.
Flowering May-Jul(-Aug). Open rocky slopes, grassland, sagebrush, bitterbrush, juniper; 700-2000(-3100) m; B.C.; Calif., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
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This project made possible by
National Science Foundation Award EF 1702516
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