Erigeron religiosus

Cronquist

Brittonia 6: 258. 1947.

Common names: Clear Creek fleabane
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 343. Mentioned on page 262, 263, 269.

Annuals or short-lived perennials, 6–30 (–40) cm; taprooted, caudices simple or branched. Stems decumbent-ascending to erect (branched), usually sparsely strigose (hairs rarely ascending-spreading), sometimes sparsely hirsutulous distally, sometimes sparsely glandular, sometimes minutely glandular distally. Leaves basal (persistent) and cauline; basal blades oblanceolate-spatulate to spatulate, 10–70 × 2–8 (–13) mm, margins usually entire, sometimes dentate or pinnately divided, faces sparsely strigose, eglandular; cauline blades linear to oblanceolate, reduced distally. Heads 1–50+ in diffuse arrays (first 1 per branch, later more from axillary branches). Involucres 2–3.5 × 5.5–7.5 mm. Phyllaries in 3–5 series, sparsely to moderately hirtellous, minutely glandular. Ray-florets 37–85; corollas white, drying lilac, with abaxial lilac midstripe, 3.5–7 mm; laminae not coiling or reflexing. Disc corollas 1.6–2.4 mm (throats slightly indurate and inflated). Cypselae 0.8–1.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 6–12 bristles. 2n = 18, 27.


Phenology: Flowering May–Sep.
Habitat: Deep sand, ponderosa pine, pinyon-juniper, oak-maple, riparian
Elevation: 1100–2300 m

Discussion

Of conservation concern.

Erigeron religiosus differs from E. divergens in stem vestiture (strigose, less densely hairy, less glandular) and petiolate basal leaves persistent into flowering. It differs in habit and habitat from E. sionis; it sometimes occurs in proximity; the uncommon presence of deeply lobed leaves in E. religiosus suggests gene flow from E. sionis.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron religiosus"
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 +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
1 cm10 mm <br />0.01 m <br /> (7 cm70 mm <br />0.07 m <br />) +
oblanceolate-spatulate +  and spatulate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
branched +  and simple +
linear +  and oblanceolate +
Clear Creek fleabane +
not 2-lipped +  and actinomorphic +
lilac +  and white +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.24 cm2.4 mm <br />0.0024 m <br />) +
fertile +  and bisexual +
Ariz. +  and Utah. +
1100–2300 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Deep sand, ponderosa pine, pinyon-juniper, oak-maple, riparian +
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 />) +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
turbinate;hemispheric +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
not coiling +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
divided +  and dentate +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering May–Sep. +
3-nerved +  and 1-nerved +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
prostrate +  and decumbent +
decumbent-ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron religiosus +
Erigeron +
species +
inflated +  and tubular +
30 cm300 mm <br />0.3 m <br /> (40 cm400 mm <br />0.4 m <br />) +
perennial +, short-lived +  and annual +
6 cm60 mm <br />0.06 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +