Erigeron vetensis

Rydberg

Bull. Torrey Bot. Club 32: 126. 1905.

Common names: Early blue-top fleabane
Endemic
Synonyms: Erigeron glandulosus Porter Erigeron porteri S. F. Blake
Treatment appears in FNA Volume 20. Treatment on page 288. Mentioned on page 271.

Perennials, 5–25 cm; taprooted, caudices with relatively short, thick branches, often retaining old leaf-bases. Stems erect, glabrous or sparsely hirsute to villous, densely glandular. Leaves basal (persistent) and cauline (petioles prominently ciliate, hairs spreading, thick-based); blades linear to narrowly oblanceolate, 20–90 (–150) × 2–4 (–7) mm, margins entire, faces glabrous or sparsely hispidulous, minutely glandular; cauline on proximal 1/3–2/3 of stems, gradually reduced distally. Heads 1. Involucres 4–8 × 7–15 mm. Phyllaries in 3–4 series (midvein region greenish), sparsely to moderately hispid or hispido-villous, minutely and densely glandular. Ray-florets 30–90; corollas usually bluish to purplish, sometimes white, drying pinkish, 6–16 mm, laminae reflexing. Disc corollas 3.2–5.3 mm (throats tubular). Cypselae 1.8–2.2 mm, 2-nerved, faces sparsely strigose; pappi: outer of inconspicuous, fine setae, inner of 18–25 bristles.


Phenology: Flowering May–Jul(–Aug).
Habitat: Dry, rocky slopes, roadsides, usually open exposures, ponderosa pine with juniper and/or oak, lodgepole pine, spruce-fir
Elevation: (1700–)2300–3300 m

Distribution

V20-600-distribution-map.gif

Colo., Nebr., N.Mex., Wyo.

Discussion

Erigeron vetensis is found in the Rocky Mountains.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron vetensis"
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 +
decurrent +
9 cm90 mm <br />0.09 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 cm20 mm <br />0.02 m <br /> (9 cm90 mm <br />0.09 m <br />) +
linear;narrowly oblanceolate +
2mm;4mm +
rugulose +  and muricate +
Early blue-top fleabane +
not 2-lipped +  and actinomorphic +
pinkish +, white +, usually bluish +  and purplish +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.53 cm5.3 mm <br />0.0053 m <br />) +
fertile +  and bisexual +
Colo. +, Nebr. +, N.Mex. +  and Wyo. +
(1700–)2300–3300 m +
strigose +, hispidulous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, rocky slopes, roadsides, usually open exposures, ponderosa pine with juniper and/or oak, lodgepole pine, spruce-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 />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
turbinate;hemispheric +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering May–Jul(–Aug). +
3-nerved +  and 1-nerved +
hispido-villous +  and hispid +
narrowly elliptic +  and linear-lanceolate +
Bull. Torrey Bot. Club +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
inconspicuous +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron glandulosus +  and Erigeron porteri +
Erigeron vetensis +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
tree +, shrub +  and subshrub +