Erigeron aequifolius

H. M. Hall

Univ. Calif. Publ. Bot. 6: 174. 1915.

Common names: Hall’s fleabane
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 316. Mentioned on page 269.

Perennials, 10–20 cm; tapooted, caudices woody, branches rhizomelike. Stems ascending-erect, sparsely villous, minutely stipitate-glandular at least distally. Leaves cauline; blades narrowly elliptic to oblanceolate, 6–20 (–25) × 1.5–3 (–5) mm, barely reduced distally, margins entire, faces sparsely short-villous, minutely glandular, sometimes minutely stipitate-glandular. Heads 1 (–3). Involucres 3.5–4 × 7–10 mm. Phyllaries in 3–5 series, sparsely strigose at bases or glabrous, minutely glandular. Ray-florets 14–24 (–30); corollas white, drying blue, 5–8 mm, laminae weakly coiling. Disc corollas (2.8–) 3.8–4.5 mm (throats slightly indurate, not inflated). Cypselae 2.2–2.5 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20–35 bristles. 2n = 18.


Phenology: Flowering Jul–Aug.
Habitat: Ledges and crevices, pinyon-juniper to montane coniferous
Elevation: 1500–2500 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron aequifolius"
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 +
H. M. Hall +
decurrent +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
narrowly elliptic;oblanceolate +
reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
rugulose +  and muricate +
Hall’s fleabane +
not 2-lipped +  and actinomorphic +
blue +  and white +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
1500–2500 m +
strigose +, stipitate-glandular +  and short-villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Ledges and crevices, pinyon-juniper to montane coniferous +
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 +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
petiolate +  and sessile +
erect;spreading +
deltate +
not +  and scarious +
2-carpellate +
Flowering Jul–Aug. +
3-nerved +  and 1-nerved +
glabrous +  and strigose +
narrowly elliptic +  and linear-lanceolate +
Univ. Calif. Publ. Bot. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
prostrate +  and decumbent +
ascending-erect +
stipitate-glandular +  and villous +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron aequifolius +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
tree +, shrub +  and subshrub +