Ericameria nauseosa var. graveolens

(Nuttall) Reveal & Schuyler

Proc. Acad. Nat. Sci. Philadelphia 149: 20. 1999.

Common names: Pungent rabbitbrush
Endemic
Basionym: Chrysocoma graveolens Nuttall Gen. N. Amer. Pl. 2: 136. 1818
Synonyms: Chrysothamnus nauseosus subsp. graveolens (Nuttall) H. M. Hall & Clements Chrysothamnus nauseosus var. graveolens (Nuttall) H. M. Hall Ericameria nauseosa var. glabrata (A. Gray) G. L. Nesom & G. I. Baird
Treatment appears in FNA Volume 20. Treatment on page 65. Mentioned on page 63, 68.

Plants 50–160 cm. Stems yellowish green to nearly white, leafy, compactly, smoothly tomentose. Leaves greenish; blades 3-nerved, broadly linear, 30–90 × 1–3 mm, faces often tomentulose. Involucres 6–8 mm. Phyllaries 14–18, apices erect, acute, abaxial faces usually glabrous, outer sometimes sparsely hairy. Corollas 7–9+ mm, tubes puberulent or glabrous, lobes 0.6–1.5, glabrous; style appendages longer than stigmatic portions. Cypselae densely hairy; pappi 4.9–6.5 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: On plains in slightly alkaline soils
Elevation: 200–2000 m

Distribution

V20-105-distribution-map.gif

Sask., Ariz., Colo., Idaho, Kans., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., S.Dak., Tex., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

hairy +  and glabrous +
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 +
(Nuttall) Reveal & Schuyler +
decurrent +
Chrysocoma graveolens +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
filiform;narrowly oblanceolate +
1mm;3mm +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Pungent rabbitbrush +
not 2-lipped +  and actinomorphic +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
turbinate +  and cylindric or oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Sask. +, Ariz. +, Colo. +, Idaho +, Kans. +, Mont. +, Nebr. +, Nev. +, N.Mex. +, N.Dak. +, Okla. +, S.Dak. +, Tex. +, Utah +  and Wyo. +
200–2000 m +
resinous +
gland-dotted +
tomentulose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
On plains in slightly alkaline soils +
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 +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
erect;spreading or reflexed +
deltate +  and triangular +
raised +  and evident +
2-carpellate +
persistent +
0.49 cm4.9 mm <br />0.0049 m <br /> (0.65 cm6.5 mm <br />0.0065 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 />) +
Proc. Acad. Nat. Sci. Philadelphia +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
yellowish green +  and nearly white +
ascending +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus nauseosus subsp. graveolens +, Chrysothamnus nauseosus var. graveolens +  and Ericameria nauseosa var. glabrata +
Ericameria nauseosa var. graveolens +
Ericameria nauseosa +
variety +
campanulate +
glabrous +  and puberulent +
perennial +, biennial +  and annual +