Dieteria bigelovii var. mucronata

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

Sida 20: 1394. 2003.

Endemic
Basionym: Machaeranthera mucronata Greene Pittonia 4: 72. 1899
Synonyms: Machaeranthera bigelovii var. mucronata (Greene) B. L. Turner
Treatment appears in FNA Volume 20. Treatment on page 398. Mentioned on page 396, 397.

Leaf-blades linear to linear-oblanceolate, mid 20–80 × 2–6 mm, margins entire, faces glabrate, puberulent, or canescent. Involucres hemispheric, 8–12 mm, widths 2–3 times heights. Phyllaries 90–100, 0.5–1 mm wide (at midpoint), apices long-acuminate, 2–5 mm. Ray-florets 20–60.2n = 8.


Phenology: Flowering Aug–Sep.
Habitat: Meadows and open areas in coniferous forests
Elevation: 2400–3000 m

Discussion

Variety mucronata is known from the Kaibab Plateau (northcentral Arizona).

Selected References

None.

Lower Taxa

None.

"-3timesheights" is not declared as a valid unit of measurement for this property.

not tailed +, rounded +  and obtuse +
distinct +
stipitate-glandular +  and hairy +
long-acuminate +
subequal +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 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 +
Machaeranthera mucronata +
linear;oblanceolate;linear;oblanceolate;lanceolate;oblong;obovate;ovate +
rugulose +  and muricate +
white +  and tawny +
not 2-lipped +  and actinomorphic +
yellow +, purple +, violet +, blue +  and white +
8-12-ribbed +  and smooth +
beaked +, 2-ribbed +  and 5-ribbed +
appressed-hairy +
flattened +, linear +  and obovoid +
fertile +  and bisexual +
0.7 cm7 mm <br />0.007 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 />) +
fertile +  and bisexual +
2400–3000 m +
canescent +, puberulent +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Meadows and open areas in coniferous forests +
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 />) +
hemispheric +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
blue +  and purple +
10mm;25mm +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
linear;linear-oblanceolate +
petiolate +  and sessile +
cauline +, proximal +  and basal +
deltate +  and lanceolate +
2-carpellate +
persistent +
stipitate-glandular +, canescent +  and puberulent +
Flowering Aug–Sep. +
spreading +  and reflexed +
lanceolate +  and linear +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
erect +  and ascending +
stipitate-glandular +, hairy +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Machaeranthera bigelovii var. mucronata +
Dieteria bigelovii var. mucronata +
Dieteria bigelovii +
variety +
perennial +, short-lived +  and biennial +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +
tree +, shrub +  and subshrub +