Ericameria parryi var. monocephala

(A. Nelson & P. B. Kennedy) G. L. Nesom & G. I. Baird

Phytologia 75: 89. 1993.

Common names: One-headed rabbitbrush
EndemicConservation concern
Basionym: Chrysothamnus monocephalus A. Nelson & P. B. Kennedy Proc. Biol. Soc. Wash. 19: 39. 1906
Synonyms: Chrysothamnus parryi subsp. monocephalus (A. Nelson & P. B. Kennedy) H. M. Hall & Clements
Treatment appears in FNA Volume 20. Treatment on page 74. Mentioned on page 52, 72.
Revision as of 20:22, 29 July 2020 by imported>Volume Importer
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Plants 5–40 cm (rigid). Leaves crowded, grayish; blades mostly 1-nerved, linear, 10–30 × 0.5–1.5 mm, faces sparsely to densely tomentulose, viscidulous; distalmost overtopping arrays. Heads 1–2 (–4) at branch tips. Involucres 10–11 mm. Phyllaries 8–12, thinly chartaceous, apices erect to spreading, attenuate. Florets 5–7; corollas 8–9 mm, tubes sparsely strigose, throats gradually dilated, lobes 1.5–1.8 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Open subalpine forests, talus, and alpine barrens
Elevation: 2800–3700 m

Discussion

Of conservation concern.

Variety monocephala is known from the Sierra Nevada.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
erect +  and spreading +
attenuate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
thyrsiform +  and paniculiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Nelson & P. B. Kennedy) G. L. Nesom & G. I. Baird +
decurrent +
Chrysothamnus monocephalus +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
linear;spatulate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
rugulose +  and muricate +
tan +  and reddish +
subequal +
One-headed rabbitbrush +
not 2-lipped +  and actinomorphic +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
narrowly ellipsoid +  and subturbinate +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Nev. +
2800–3700 m +
gland-dotted;yellowish;greenish;yellowish;greenish;gray +
tomentulose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open subalpine forests, talus, and alpine barrens +
cymiform +  and racemiform +
singly +, grouped +  and cluster +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.9 cm9 mm <br />0.009 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
subcylindric +
1 cm10 mm <br />0.01 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
erect +  and ascending or spreading +
erect;spreading or reflexed +
deltate +  and triangular +
2-carpellate +
off-white +  and brown +
persistent +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering late summer–fall. +
herbaceous-tipped +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
ovate +  and lanceolate or elliptic +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
eglandular +  and branched +
resinous +
densely white +  and grayish +
ascending +  and erect +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus parryi subsp. monocephalus +
Ericameria parryi var. monocephala +
Ericameria parryi +
variety +
perennial +, biennial +  and annual +