Ericameria nauseosa var. arenaria

(L. C. Anderson) G. L. Nesom & G. I. Baird

Phytologia 75: 85. 1993.

Common names: Sand rabbitbrush
Endemic
Basionym: Chrysothamnus nauseosus subsp. arenarius L. C. Anderson Phytologia 38: 311, fig. 1. 1978
Synonyms: Chrysothamnus nauseosus var. arenarius (L. C. Anderson) S. L. Welsh
Treatment appears in FNA Volume 20. Treatment on page 64. Mentioned on page 63.
Revision as of 19:55, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Plants 70–120 cm. Stems grayish green, moderately leafy, moderately compactly tomentose. Leaves grayish green; blades 1-nerved, linear, 40–75 × 0.8–1.1 mm, faces tomentose. Involucres 16–19 mm. Phyllaries (19–) 22–27 (in strongly vertical ranks), apices ± recurved, cuspidate-aristate, abaxial faces glabrous or glabrescent. Corollas 12–14.2 mm, tubes glabrous, lobes 1.2–2 mm, glabrous; style appendages longer than stigmatic portions. Cypselae hairy; pappi 9.6–12.7 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Sandhills and sandstone cliffs
Elevation: 1500–2000 m

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

glabrescent +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
cuspidate-aristate +
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 +
(L. C. Anderson) G. L. Nesom & G. I. Baird +
decurrent +
Chrysothamnus nauseosus subsp. arenarius +
4 cm40 mm <br />0.04 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
filiform;narrowly oblanceolate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Sand rabbitbrush +
not 2-lipped +  and actinomorphic +
1.2 cm12 mm <br />0.012 m <br /> (1.42 cm14.2 mm <br />0.0142 m <br />) +
turbinate +  and cylindric or oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, N.Mex. +  and Utah. +
1500–2000 m +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandhills and sandstone cliffs +
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 +
1.6 cm16 mm <br />0.016 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
grayish green +
usually ascending +  and spreading +
erect;spreading or reflexed +
deltate +  and triangular +
raised +  and evident +
2-carpellate +
persistent +
0.96 cm9.6 mm <br />0.0096 m <br /> (1.27 cm12.7 mm <br />0.0127 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 +
grayish green +
ascending +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus nauseosus var. arenarius +
Ericameria nauseosa var. arenaria +
Ericameria nauseosa +
variety +
campanulate +
perennial +, biennial +  and annual +