Ericameria nauseosa var. juncea

(Greene) G. L. Nesom & G. I. Baird

Phytologia 75: 86. 1993.

Common names: Rush rabbitbrush
Endemic
Basionym: Bigelowia juncea Greene Bot. Gaz. 6: 184. 1881 (as Bigelovia)
Synonyms: Chrysothamnus nauseosus var. junceus (Greene) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 66. Mentioned on page 63.
Revision as of 20:00, 29 July 2020 by imported>Volume Importer
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Plants 40–70 cm. Stems yellowish green, usually leafless at flowering, compactly tomentose. Leaves yellowish green; blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces compactly tomentose. Involucres 9.5–12 mm. Phyllaries 22–25, apices erect, acute, abaxial faces tomentose or glabrate. Corollas 7–8.5 mm, tubes hairy, lobes 0.7–0.9 mm, villous; style appendages longer than stigmatic portions. Cypselae hairy; pappi 5.6–7.6 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Blackbrush, matchweed, shadscale, and pinyon-juniper communities
Elevation: 1200–1800 m

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

glabrate +  and tomentose +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
rounded +  and flat-topped +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(Greene) G. L. Nesom & G. I. Baird +
decurrent +
Bigelowia juncea +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
filiform +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Rush rabbitbrush +
not 2-lipped +  and actinomorphic +
0.7 cm7 mm <br />0.007 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
turbinate +  and cylindric or oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Nev. +  and Utah. +
1200–1800 m +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Blackbrush, matchweed, shadscale, and pinyon-juniper communities +
thyrsiform +, paniculiform +, branched +, racemiform +, cymiform +, discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
obconic;subcylindric +
0.95 cm9.5 mm <br />0.0095 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
yellowish green +
usually ascending +  and spreading +
erect;spreading or reflexed +
deltate +  and triangular +
raised +  and evident +
2-carpellate +
persistent +
0.56 cm5.6 mm <br />0.0056 m <br /> (0.76 cm7.6 mm <br />0.0076 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering late summer–fall. +
0.15 cm1.5 mm <br />0.0015 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
ovate +  and lanceolate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
yellowish green +
ascending +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus nauseosus var. junceus +
Ericameria nauseosa var. juncea +
Ericameria nauseosa +
variety +
campanulate +
perennial +, biennial +  and annual +