Eriophyllum lanatum var. hallii

Constance

Proc. Natl. Acad. Sci. U.S.A. 20: 411. 1934.

Common names: Hall’s woolly sunflower
Endemic
Treatment appears in FNA Volume 21. Treatment on page 361. Mentioned on page 354, 357.
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Perennials (± taprooted). Proximal leaves opposite; blades ovate, 1-pinnately lobed, ultimate margins slightly revolute, abaxial faces sparsely woolly, adaxial glabrate. Heads 2–4 per array or borne singly. Peduncles mostly 5–12 cm. Involucres 7–8 mm diam. Ray-florets 8–9; laminae 10–13 mm (disc corolla-tubes glabrous). Cypselae 3.5–5 mm; pappi 0.7–2 mm. 2n = 16.


Phenology: Flowering Jun–Jul.
Habitat: Dry sites, woodlands
Elevation: 1200–1500 m

Discussion

Of conservation concern.

Variety hallii is known only from two populations in Kern and in Santa Barbara counties and is threatened by cattle (D. P. Tibor 2001).

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 +
Constance +
decurrent +
Actinella lanata +
compound +  and simple +
lobed;ovate +
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 +
Hall’s woolly sunflower +
yellow +  and white +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
glabrous +  and hairy +
papillate +
4(-5)-angled +, linear-clavate +  and prismatic flattened or 3-angled +
fertile +  and bisexual +
fertile +  and bisexual +
1200–1500 m +
woolly +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry sites, woodlands +
compound-corymbiform +, corymbiform +, discoid +  and radiate +
disciform +  and discoid +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
campanulate;hemispheric +
golden yellow +  and yellow +
6mm;20[mm +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 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 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flowering Jun–Jul. +
scarious-margined +
connate +  and distinct +
weakly +  and flat +
glabrous +, glabrate +, woolly +  and tomentose +
5 +  and 13 +
Proc. Natl. Acad. Sci. U.S.A. +
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. hallii +
Eriophyllum lanatum +
variety +
campanulate +
plane +, revolute +, entire +  and toothed +
10 cm100 mm <br />0.1 m <br /> (100 cm1,000 mm <br />1 m <br />) +