Eriophyllum confertiflorum var. tanacetiflorum

(Greene) Jepson

Man. Fl. Pl. Calif., 1116. 1925.

EndemicConservation concern
Basionym: Eriophyllum tanacetiflorum Greene Pittonia 2: 21. 1889
Treatment appears in FNA Volume 21. Treatment on page 361. Mentioned on page 354, 357.

Leaf-blades spatulate to obovate, 2–5 cm, 3–5-lobed, lobes ± oblong. Heads (3–) 4–7 (–10) per array. Peduncles 0–2.5 (–9) cm. Involucres 5–7 mm diam. Phyllaries 5–7 (–8), ovate, apices obtuse or acute. Ray-florets 0 or 4–6; laminae 4–5 mm. Disc-florets 35–75; corollas 3.5–4 mm. Cypselae 2–3.5 mm; pappi 0.5–1.3 mm. 2n = 64.


Phenology: Flowering May–Jul.
Habitat: Dry sites, oak woodlands
Elevation: 300–1000 m

Discussion

Of conservation concern.

Variety tanacetiflorum is known only from the central Sierra Nevada foothills. At least one population is sympatric with Eriophyllum lanatum and E. confertiflorum var. confertiflorum. It may deserve specific recognition.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, glomerate +  and corymbiform +
indeterminate +  and determinate +
Dale E. Johnson +  and John S. Mooring +
(Greene) Jepson +
decurrent +
Eriophyllum tanacetiflorum +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
3-5-lobed +, spatulate +  and obovate +
compound +  and simple +
cuneate;obovate +
0.5 cm5 mm <br />0.005 m <br /> (5 cm50 mm <br />0.05 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and white +
0.35 cm3.5 mm <br />0.0035 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 +
300–1000 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry sites, oak woodlands +
compound-corymbiform +, corymbiform +, discoid +  and radiate +
disciform +  and discoid +
in loose to tight +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
campanulate +
golden yellow +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.5mm;3]mm +
sessile +  and petiolate +
papillate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
of 1 +  and 12+ aristate +
coroniform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering May–Jul. +
scarious-margined +
connate +  and distinct +
weakly +  and flat +
glabrous +, glabrate +, woolly +  and tomentose +
Man. Fl. Pl. Calif., +
pitted +  and smooth +
convex;conic +
2 +  and 14 +
cuneate +  and oblanceolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Eriophyllinae +
Eriophyllum confertiflorum var. tanacetiflorum +
Eriophyllum confertiflorum +
variety +
campanulate +
perennial +  and annual +