Pyrrocoma uniflora var. uniflora

Endemic
Synonyms: Haplopappus contractus H. M. Hall Haplopappus uniflorus subsp. howellii (A. Gray) H. M. Hall Haplopappus uniflorus var. howellii Pyrrocoma howellii
Treatment appears in FNA Volume 20. Treatment on page 424. Mentioned on page 423.

Plants 10–40 cm. Stems reddish, tomentose, lanate, or glabrate. Leaves: basal blades narrowly to broadly lanceolate, 50–100 × 5–15 mm, margins usually remotely denticulate, rarely laciniate or entire; faces tomentose to glabrate or glabrous. Heads usually borne singly, terminal, rarely 1–2 additional proximally. Involucres 6–9 × 13–18 mm. Phyllaries appressed, subequal, outer sometimes shorter. 2n = 12.


Phenology: Flowering May–Sep.
Habitat: Montane pine forests, alkaline meadows, around hot springs
Elevation: 1400–2900 m

Distribution

V20-979-distribution-map.gif

Alta., N.W.T., Sask., Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wyo.

Discussion

Variety uniflora is the more widespread and variable of the two varieties.

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."[" is not declared as a valid unit of measurement for this property.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
(Hooker) Greene +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
cordate +
3mm;30mm +
Donia uniflora +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lanceolate;linear;oblanceolate or elliptic +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
angled +  and subcylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Alta. +, N.W.T. +, Sask. +, Calif. +, Colo. +, Idaho +, Mont. +, Nev. +, Oreg. +, Utah +  and Wyo. +
1400–2900 m +
tomentose +  and glabrate or glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Montane pine forests, alkaline meadows, around hot springs +
discoid +  and disciform +
indeterminate +
additional;1;2 +
heterogamous +  and homogamous +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
hemispheric +
1.3 cm13 mm <br />0.013 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
linear +  and elliptic +
entire +, laciniate +  and denticulate +
3mm +  and 30mm +
2-carpellate +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flowering May–Sep. +
with distinct , green apical patch +  and yellow-green +
appressed +  and loosely spreading +
linear-lanceolate +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
eglandular +, naked +, leafy to almost +  and leafy +
curved-ascending +  and decumbent +
glabrate +, lanate +  and tomentose +
1 +  and 7 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus contractus +, Haplopappus uniflorus subsp. howellii +, Haplopappus uniflorus var. howellii +  and Pyrrocoma howellii +
Pyrrocoma uniflora var. uniflora +
Pyrrocoma uniflora +
variety +
tubular-funnelform +
50 cm500 mm <br />0.5 m <br /> (90 cm900 mm <br />0.9 m <br />) +
stipitate-glandular +, glabrous +, tomentose +  and sericeous +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +