Pyrrocoma racemosa var. sessiliflora

(Greene) Mayes ex G. K. Brown and D. D. Keil

Phytologia 73: 58. 1992.

Endemic
Basionym: Pyrrocoma sessiliflora Greene Leafl. Bot. Observ. Crit. 2: 11. 1909
Synonyms: Haplopappus racemosus subsp. sessiliflorus (Greene) H. M. Hall Haplopappus racemosus var. sessiliflorus (Greene) S. L. Welsh
Treatment appears in FNA Volume 20. Treatment on page 423. Mentioned on page 422.
Revision as of 21:28, 29 July 2020 by imported>Volume Importer
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Plants 20–60 cm. Stems glabrous, glaucous. Leaves: basal blades linear-oblanceolate, 50–200 × 4–28 mm, thick, succulent, margins remotely and obscurely denticulate, glabrous, glaucous. Heads sessile or nearly so, crowded, in glomerate-spiciform arrays. Involucres obconic, 5–8 × 5–7 mm. Phyllaries: bases pale (chartaceous), margins ciliate, apices recurved, green, faces glabrous. Cypsela faces densely sericeous to glabrate. 2n = 12.


Phenology: Flowering Jul–Oct.
Habitat: Alkaline flats, saline meadows and marshes
Elevation: 300–2200 m

Discussion

Selected References

None.

Lower Taxa

None.

No values specified."[" 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 +
acute;obtuse;acute +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
glomerate-spiciform +
indeterminate +  and determinate +
David J. Bogler +
(Greene) Mayes ex G. K. Brown and D. D. Keil +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
linear-oblanceolate +
eglandular +  and leafy +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
villous +, tomentulose +  and glabrous +
attenuate +
3mm;30mm +
Pyrrocoma sessiliflora +
compound +  and simple +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceolate;oblanceolate;elliptic +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 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 +
densely sericeous +  and glabrate +
4-angled +  and subcylindric +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +, Nev. +  and Utah. +
300–2200 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Alkaline flats, saline meadows and marshes +
nearly +  and sessile +
discoid +  and disciform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
linear +  and elliptic +
glaucous +  and glabrous +
denticulate +
3mm +  and 30mm +
2-carpellate +
persistent +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jul–Oct. +
with distinct , green apical patch +  and yellow-green +
appressed +  and loosely spreading +
lanceolate +  and oblanceolate or oblong +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
brownish +  and red-tinged +
ascending +  and erect +
glaucous +  and glabrous +
2 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus racemosus subsp. sessiliflorus +  and Haplopappus racemosus var. sessiliflorus +
Pyrrocoma racemosa var. sessiliflora +
Pyrrocoma racemosa +
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 />) +