Erigeron concinnus var. condensatus

D. C. Eaton in S. Watson

in S. Watson, Botany (Fortieth Parallel), 151. 1871.

Endemic
Synonyms: Erigeron condensatus (D. C. Eaton) Greene Erigeron pumilus var. condensatus (D. C. Eaton) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 290. Mentioned on page 289.
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Plants mostly 4–10 cm. Stems ± scapiform, densely piloso-hispid. Leaves mostly basal, cauline relatively few, greatly reduced. Heads 1.


Phenology: Flowering May–Jul.
Habitat: Open, gravelly or sandy slopes, sagebrush, juniper, pinyon-juniper
Elevation: 1500–2400 m

Discussion

Variety condensatus is distinctive in habit (single heads on nearly scapiform stems), but intergrades with var. concinnus are common in some areas. And although populations of var. condensatus appear to be concentrated in the southern and eastern part of the range of the species, even there those enclaves are scattered within the larger range of var. concinnus, and the evolutionary nature of the variation pattern is not clear.

Selected References

None.

Lower Taxa

None.
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 +
D. C. Eaton in S. Watson +
decurrent +
Distasis concinna +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
narrowly oblanceolate;linear-oblong +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rugulose +  and muricate +
branched +  and simple +
reduced +  and unreduced +
not 2-lipped +  and actinomorphic +
white +  and pink or blue +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
fertile +  and bisexual +
N.Mex. +, Utah +  and Wyo. +
1500–2400 m +
strigoso-hirsute +, substrigose +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open, gravelly or sandy slopes, sagebrush, juniper, pinyon-juniper +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
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 /> (0.7 cm7 mm <br />0.007 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 +
erect;spreading +
deltate +
not +  and scarious +
2-carpellate +
Flowering May–Jul. +
3-nerved +  and 1-nerved +
hirsute +  and hirsuto-villous +
narrowly elliptic +  and linear-lanceolate +
in S. Watson, Botany (Fortieth Parallel), +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
branched +  and simple +
prostrate +  and decumbent +
ascending +  and erect +
piloso-hispid +
scapiform +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron condensatus +  and Erigeron pumilus var. condensatus +
Erigeron concinnus var. condensatus +
Erigeron concinnus +
variety +
inflated +  and tubular +
25 cm250 mm <br />0.25 m <br /> (50 cm500 mm <br />0.5 m <br />) +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +