Erigeron piperianus

Cronquist

Brittonia 6: 197. 1947.

Common names: Piper’s fleabane
Endemic
Treatment appears in FNA Volume 20. Treatment on page 288. Mentioned on page 265, 271.

Perennials, (3–) 6–12 cm; taprooted, caudices usually branched. Stems erect (distinctly white in proximal portions), usually strigose at least on distal 1/2, sometimes strigoso-hirsute or mixed-hispid, minutely glandular. Leaves mostly cauline (proximal internodes elongate; petioles prominently ciliate, hairs spreading, thick-based); blades linear to linear-oblanceolate, 20–40 × 1–1.5 mm (on proximal 1/2–2/3 of stems), (bases relatively thin, not sheathing) margins entire, hispido-ciliate, faces strigose. Heads 1. Involucres 3.5–4 × 5–10 mm. Phyllaries in 2–3 series, hirsuto-villous, sometimes minutely glandular. Ray-florets 25–40; corollas yellow, drying dark yellow (sometimes fading on drying and appearing whitish or creamy), 4–9 mm, laminae coiling. Disc corollas 2.5–3 mm. Cypselae 1.6–1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 15–25 bristles.


Phenology: Flowering May–Jun.
Habitat: Dry, open places, level to moderate slope, commonly with sagebrush, usually undisturbed, sometimes grazed and/or burned, sites
Elevation: (100–)200–400(–700) m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron piperianus"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
Cronquist +
decurrent +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
linear;linear-oblanceolate +
1mm;1.5mm +
rugulose +  and muricate +
Piper’s fleabane +
not 2-lipped +  and actinomorphic +
dark yellow +  and yellow +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
fertile +  and bisexual +
(100–)200–400(–700) m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, open places, level to moderate slope, commonly with sagebrush, usually undisturbed, sometimes grazed and/or burned, sites +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
turbinate;hemispheric +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
petiolate +  and sessile +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering May–Jun. +
3-nerved +  and 1-nerved +
hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron piperianus +
Erigeron +
species +
inflated +  and tubular +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
tree +, shrub +  and subshrub +