Erigeron mancus

Rydberg

Fl. Rocky Mts., 902, 1067. 1917.

Common names: Imperfect fleabane
EndemicConservation concern
Synonyms: Erigeron pinnatisectus var. insolens J. F. Macbride & Payson
Treatment appears in FNA Volume 20. Treatment on page 310. Mentioned on page 260.

Perennials 2–7 cm; taprooted, caudex branches usually relatively thick, woody. Stems erect, sparsely to moderately hispidulous and minutely glandular, sometimes merely glandular. Leaves mostly basal and proximal cauline (persistent); basal blades spatulate (often folding), 12–40 × 2–4 mm, margins pinnatifid (lobes linear), faces glabrate or sometimes sparsely hirsute, usually minutely glandular; cauline mostly linear, reduced and bractlike, margins entire, usually coarsely ciliate. Heads (discoid) 1. Involucres 5–6.5 × 7–12 mm. Phyllaries in 3–5 series, hirsuto-villous, minutely glandular. Ray (pistillate) florets 0. Disc corollas 3.8–4.5 mm. Cypselae ca. 2.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20–30 bristles.


Phenology: Flowering Jun–Jul.
Habitat: Rocky slopes, boulder fields, ridge tops, alpine meadows, openings in subalpine fir
Elevation: 3000–3800 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron mancus"
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 +
Rydberg +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
Imperfect fleabane +
not 2-lipped +  and actinomorphic +
yellow +, usually white +  and bluish or purplish +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
3000–3800 m +
strigose +, hirsute +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky slopes, boulder fields, ridge tops, alpine meadows, openings in subalpine fir +
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 />) +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
turbinate;hemispheric +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
petiolate +  and sessile +
cauline +, proximal +  and basal +
erect;spreading +
deltate +
pinnatifid +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering Jun–Jul. +
3-nerved +  and 1-nerved +
hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
Fl. Rocky Mts., +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron pinnatisectus var. insolens +
Erigeron mancus +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
tree +, shrub +  and subshrub +