Dieteria canescens var. leucanthemifolia

(Greene) D. R. Morgan & R. L. Hartman

Sida 20: 1396. 2003.

Endemic
Basionym: Aster leucanthemifolius Greene Erythea 3: 119. 1895
Synonyms: Machaeranthera canescens var. leucanthemifolia (Greene) S. L. Welsh Machaeranthera leucanthemifolia (Greene) Greene
Treatment appears in FNA Volume 20. Treatment on page 399. Mentioned on page 396, 398.

Annuals, biennials, or short-lived perennials. Stems 1+, ascending to erect, frequently canescent, stipitate-glandular; branches divaricate to ascending. Mid and distal leaf-blades ovate, oblong, or obovate (lengths 1.5–4 times widths). Peduncles equaling or longer than involucres. Involucres broadly turbinate to campanulate, 6–10 mm. Phyllaries in 3–6 series, reflexed, apices often canescent, stipitate-glandular. Ray-florets pistillate, fertile. Cypselae sparsely to moderately appressed-hairy. 2n = 8.


Phenology: Flowering Jun–Sep.
Habitat: Creosote bush scrublands, pinyon-juniper woodlands
Elevation: 500–2500 m

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
distinct +
stipitate-glandular +  and canescent +
acute;acuminate +
subequal +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
David R. Morgan +
(Greene) D. R. Morgan & R. L. Hartman +
decurrent +
indurate +
Aster leucanthemifolius +
linear;oblanceolate;linear;oblanceolate;lanceolate;oblong;obovate;ovate +
rugulose +  and muricate +
white +  and tawny +
not 2-lipped +  and actinomorphic +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
yellow +, purple +, violet +, blue +  and white +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
8-12-ribbed +  and smooth +
beaked +, 2-ribbed +  and 5-ribbed +
appressed-hairy +
flattened +, linear +  and obovoid +
fertile +  and bisexual +
fertile +  and bisexual +
clasping +  and not clasping +
Calif. +, Nev. +  and Utah. +
500–2500 m +
stipitate-glandular +, hairy +, glabrous +, canescent +  and puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Creosote bush scrublands, pinyon-juniper woodlands +
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 />) +
broadly turbinate;campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (3 cm30 mm <br />0.03 m <br />) +
purple +, blue +  and white +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
linear-lanceolate;linear or linear-oblanceolate +
petiolate +  and sessile +
cauline +, proximal +  and basal +
deltate +  and lanceolate +
serrate +, entire +  and irregularly dentate +
obovate +, oblong +  and ovate +
2-carpellate +
persistent +
stipitate-glandular +, canescent +, puberulent +  and glabrous +
Flowering Jun–Sep. +
lanceolate +  and linear +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
ascending +  and erect +
stipitate-glandular +  and canescent +
appendaged +  and truncate +
papillate +  and smooth +
Machaeranthera canescens var. leucanthemifolia +  and Machaeranthera leucanthemifolia +
Dieteria canescens var. leucanthemifolia +
Dieteria canescens +
variety +
perennial +, short-lived +, biennial +  and annual +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
tree +, shrub +  and subshrub +