Ericameria nauseosa var. bernardina

(H. M. Hall) G. L. Nesom & G. I. Baird

Phytologia 75: 85. 1993.

Common names: Bernardina rabbitbrush
Basionym: Chrysothamnus nauseosus var. bernardinus H. M. Hall Univ. Calif. Publ. Bot. 7: 171. 1919
Treatment appears in FNA Volume 20. Treatment on page 64. Mentioned on page 63.

Plants 50–150 cm. Stems yellowish green, becoming whitish, leafy, compactly tomentose. Leaves mostly greenish yellow; blades 1-nerved, linear, 30–50 × 1–2 mm, faces ± tomentose. Involucres 10–14 mm. Phyllaries 13–20 (in vertical ranks), apices erect, acuminate, abaxial faces glabrous or tomentose. Corollas 10–12 mm, tubes puberulent, lobes 1.7–2.3 mm, glabrous; style appendages longer than stigmatic portions. Cypselae densely sericeous; pappi 7–8 mm.


Phenology: Flowering late summer–fall.
Habitat: Open yellow-pine forests
Elevation: 1200–3000 m

Distribution

V20-102-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

tomentose +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
acuminate +
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 +
(H. M. Hall) G. L. Nesom & G. I. Baird +
decurrent +
Chrysothamnus nauseosus var. bernardinus +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
filiform;narrowly oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Bernardina rabbitbrush +
not 2-lipped +  and actinomorphic +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
turbinate +  and cylindric or oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
1200–3000 m +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open yellow-pine forests +
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 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
greenish yellow +
usually ascending +  and spreading +
erect;spreading or reflexed +
deltate +  and triangular +
raised +  and evident +
2-carpellate +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 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 +
whitish +  and yellowish green +
ascending +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus nauseosus +
Ericameria nauseosa var. bernardina +
Ericameria nauseosa +
variety +
campanulate +
puberulent +
perennial +, biennial +  and annual +