Erigeron maguirei

Cronquist

Brittonia 6: 165. 1947.

Common names: Maguire’s fleabane
EndemicConservation concern
Synonyms: Erigeron maguirei var. harrisonii S. L. Welsh
Treatment appears in FNA Volume 20. Treatment on page 307. Mentioned on page 273, 274.

Perennials, 2–15 (–28) cm; taprooted, caudex branches relatively short and thick. Stems ascending (greenish proximally), densely hirsute (hairs spreading), densely minutely glandular. Leaves basal (persistent) and cauline; basal blades oblanceolate-spatulate to spatulate (not folding), 20–50 × 3–8 mm (bases often abruptly contracted), margins entire (apices rounded to obtuse), faces densely hirsute to hispido-hirsute, minutely glandular; cauline blades becoming lanceolate, gradually reduced distally or unreduced until heads. Heads 1–5 (from distal branches). Involucres 5–6.5 × 7–11 mm. Phyllaries in 3–4 series, sparsely hirsute, densely minutely glandular. Ray-florets 12–20; corollas white to pink, 6–8 mm, laminae spreading, not coiling or reflexing. Disc corollas 2.5–3 mm. Cypselae 1.8–2 mm, 2-nerved, faces hirsuto-villous; pappi: outer of setae or scales, inner of 13–25 bristles.


Phenology: Flowering May–Jul.
Habitat: Sandy canyon bottoms, juniper or pinyon-juniper
Elevation: 1600–2200 m

Discussion

Of conservation concern.

Erigeron maguirei is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron maguirei"
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 +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
oblanceolate-spatulate +  and spatulate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
unreduced +  and reduced +
Maguire’s fleabane +
not 2-lipped +  and actinomorphic +
white +  and pink +
0.6 cm6 mm <br />0.006 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 +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
fertile +  and bisexual +
1600–2200 m +
hirsuto-villous +, densely hirsute +  and hispido-hirsute +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy canyon bottoms, juniper or pinyon-juniper +
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 /> (1.1 cm11 mm <br />0.011 m <br />) +
reflexing +  and spreading +
not coiling +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering May–Jul. +
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 +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron maguirei var. harrisonii +
Erigeron maguirei +
Erigeron +
species +
inflated +  and tubular +
15 cm150 mm <br />0.15 m <br /> (28 cm280 mm <br />0.28 m <br />) +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tree +, shrub +  and subshrub +