Eriophyllum lanatum var. lanatum

Endemic
Treatment appears in FNA Volume 21. Treatment on page 360. Mentioned on page 357, 358, 361.

Perennials (± taprooted). Proximal leaves alternate; blades mostly oblanceolate, 1-pinnately lobed (usually beginning in distal 1/2 of leaf, lobes 5–7), ultimate margins usually toothed or serrate, rarely entire, revolute, abaxial faces densely woolly, adaxial less so. Heads 2–5 per array or borne singly. Peduncles mostly 5–15 (–20) cm. Involucres 10–15 mm diam. Ray-florets (8–) 11–13; laminae 10–20 mm. Cypselae (3.4–) 3.5–5 mm; pappi 0.4–1.8 mm. 2n = 16, 32.


Phenology: Flowering May–Jun.
Habitat: Dry, rocky sites, sagebrush, forests
Elevation: 200–1100 m

Distribution

V21-903-distribution-map.gif

Idaho, Mont., Oreg., Wash.

Discussion

Variety lanatum intergrades with var. leucophyllum near the Cascade Mountains in Washington and Oregon, and to the south and west with var. integrifolium (see above). It closely resembles var. grandiflorum; their distributions are disjunct.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Dale E. Johnson +  and John S. Mooring +
(Pursh) J. Forbes +
decurrent +
Actinella lanata +
compound +  and simple +
lobed;oblanceolate +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and white +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
glabrous +  and hairy +
papillate +
4(-5)-angled +, linear-clavate +  and prismatic flattened or 3-angled +
fertile +  and bisexual +
fertile +  and bisexual +
Idaho +, Mont. +, Oreg. +  and Wash. +
200–1100 m +
woolly +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, rocky sites, sagebrush, forests +
compound-corymbiform +, corymbiform +, discoid +  and radiate +
disciform +  and discoid +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
campanulate;hemispheric +
golden yellow +  and yellow +
6mm;20[mm +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2mm;7]mm +
sessile +  and petiolate +
papillate +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
of 1 +  and 12+ aristate +
coroniform +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
15 cm150 mm <br />0.15 m <br /> (20 cm200 mm <br />0.2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Flowering May–Jun. +
scarious-margined +
connate +  and distinct +
weakly +  and flat +
glabrous +, glabrate +, woolly +  and tomentose +
5 +  and 13 +
Hort. Woburn., +
pitted +  and smooth +
convex;conic +
6 +  and 12 +
lacerate +, cuneate +  and lanceolate or lance-linear +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
exalbuminous +
erect +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Eriophyllinae +
Eriophyllum lanatum var. lanatum +
Eriophyllum lanatum +
variety +
campanulate +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +