Eriophyllum lanatum var. croceum

(Greene) Jepson

Man. Fl. Pl. Calif., 1118. 1925.

Endemic
Basionym: Eriophyllum croceum Greene Erythea 3: 124. 1895
Treatment appears in FNA Volume 21. Treatment on page 359. Mentioned on page 357.

Perennials (sometimes stoloniferous; roots branched). Proximal leaves mostly alternate; blades narrow-oblanceolate to obovate, coarsely serrate or shallowly lobed distally, ultimate margins toothed or entire, revolute, abaxial faces densely silky-woolly, adaxial glabrate. Heads 2–4 per array or borne singly. Peduncles 3–8 cm. Involucres 10–12 mm diam. Ray-florets 10–14; laminae 8–10 mm. Cypselae 2–2.5 (–4) mm; pappi 0–0.1 mm. 2n = 16, 32.


Phenology: Flowering May–Jun.
Habitat: Usually with conifers
Elevation: 1000–1700 m

Discussion

Variety croceum, one of the less frequently collected taxa of the complex, closely resembles var. arachnoideum.

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 +
(Greene) Jepson +
decurrent +
Eriophyllum croceum +
compound +  and simple +
narrow-oblanceolate;obovate coarsely serrate or shallowly lobed +
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 />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glabrous +  and hairy +
papillate +
4(-5)-angled +, linear-clavate +  and prismatic flattened or 3-angled +
fertile +  and bisexual +
fertile +  and bisexual +
1000–1700 m +
woolly +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Usually with conifers +
compound-corymbiform +, corymbiform +, discoid +  and radiate +
disciform +  and discoid +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
campanulate;hemispheric +
golden yellow +  and yellow +
6mm;20[mm +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 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 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering May–Jun. +
scarious-margined +
connate +  and distinct +
weakly +  and flat +
glabrous +, glabrate +, woolly +  and tomentose +
5 +  and 13 +
Man. Fl. Pl. Calif., +
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. croceum +
Eriophyllum lanatum +
variety +
campanulate +
entire +  and toothed +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +