Amphipappus fremontii var. spinosus

(A. Nelson) Ced. Porter

Amer. J. Bot. 30: 483. 1943.

Endemic
Basionym: Amphiachyris fremontii var. spinosa A. Nelson Bot. Gaz. 47: 431. 1909
Synonyms: Amphipappus spinosus A. Nelson Amphipappus fremontii subsp. spinosus (A. Nelson) D. D. Keck
Treatment appears in FNA Volume 20. Treatment on page 186.

Young twigs, peduncles, and leaves densely hirtellous.


Phenology: Flowering Mar–May.
Habitat: Rocky or sandy soils, flats, washes, slopes, rock outcrops, canyon walls, cliff faces, commonly with Larrea, Yucca, Ambrosia
Elevation: 500–1300 m

Distribution

V20-408-distribution-map.gif

Ariz., Calif., Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Guy L. Nesom +
(A. Nelson) Ced. Porter +
decurrent +
Amphiachyris fremontii var. spinosa +
obovate;narrowly elliptic +
rugulose +  and muricate +
hirtellous +, densely +  and glabrous +
? (?) +  and ? (?) +
not 2-lipped +  and actinomorphic +
beaked +, 2-ribbed +  and 5-ribbed +
flattened +, oblongelliptic +  and obovoid +
fertile +  and bisexual +
Ariz. +, Calif. +, Nev. +  and Utah. +
500–1300 m +
resinous +
villous +, glabrous +  and hirtellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky or sandy soils, flats, washes, slopes, rock outcrops, canyon walls, cliff faces, commonly with Larrea, Yucca, Ambrosia +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
turbino-cylindric +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
petiolate +  and subsessile +
hirtellous +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 1.1 cm11 mm <br />0.011 m <br /> (?) +
lanceolate +  and coiling +
2-carpellate +
persistent +
Flowering Mar–May. +
greenish white +
ovate +  and elliptic +
Amer. J. Bot. +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
spinescent +, leafless +  and branched +
appendaged +  and truncate +
papillate +  and smooth +
Amphipappus spinosus +  and Amphipappus fremontii subsp. spinosus +
Amphipappus fremontii var. spinosus +
Amphipappus fremontii +
variety +
hirtellous +
perennial +, biennial +  and annual +