Helenium bigelovii

Torrey & A. Gray in War Department [U.S.]

in War Department [U.S.], Pacif. Railr. Rep. 4(5): 107. 1857.

Common names: Bigelow’s sneezeweed
Endemic
Treatment appears in FNA Volume 21. Treatment on page 432. Mentioned on page 427.

Perennials, 30–130 cm. Stems 1–3 (–10), unbranched or sparingly branched distally, weakly to moderately winged, glabrous proximally, glabrous or sparsely hairy distally. Leaves glabrous or sparsely hairy; basal blades oblanceolate to oblongelliptic, entire; proximal and mid-blades lanceolate to oblongelliptic, entire; distal blades linear to lanceolate, entire. Heads 1–20 per plant, borne singly or in paniculiform arrays. Peduncles (6–) 10–30 cm, sparsely to moderately hairy. Involucres hemispheric to globoid, 12–20 × (14–) 17–22 (–25) mm. Phyllaries (connate proximally) moderately to densely hairy. Ray-florets 14–20, pistillate, fertile; corollas yellow, 13–25 × 5–10 (–12) mm. Disc-florets 250–500 (–800+); corollas yellow proximally, yellow to brown to purple distally, 3–4.4 (–4.8) mm, lobes 5. Cypselae 1.8–2.4 mm, moderately hairy; pappi of 6–8 entire, aristate scales 1.3–2.2 (–2.7) mm. 2n = 32.


Phenology: Flowering (May–)Jul–Aug(–Oct).
Habitat: Bogs and swamps, around ponds and lakes, along streams, in moist meadows
Elevation: 60–3400 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Helenium bigelovii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Mark W. Bierner +
Torrey & A. Gray in War Department [U.S.] +
oblanceolate +  and oblongelliptic +
decurrent +
compound +  and simple +
pinnatifid;lobed;spatulate;ovate;spatulate;ovate;oblong;oblanceolate;linear;lanceolate;elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Bigelow’s sneezeweed +
0.44 cm4.4 mm <br />0.0044 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
yellow +  and brown +
1.3 cm13 mm <br />0.013 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.44 cm4.4 mm <br />0.0044 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
4-5-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
linear;lanceolate +
Calif. +  and Oreg. +
60–3400 m +
gland-dotted +
glabrous or +  and sparsely densely hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Bogs and swamps, around ponds and lakes, along streams, in moist meadows +
discoid +  and radiate +
in paniculiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
2.2 cm22 mm <br />0.022 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric +
1.7 cm17 mm <br />0.017 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
sessile +  and petiolate +
hairy +  and glabrous +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
2-carpellate +
persistent +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Flowering (May–)Jul–Aug(–Oct). +
9 +  and 34 +
in War Department [U.S.], Pacif. Railr. Rep. +
bearing subulate enations +, hairy +  and bristly +
ovoid;hemispheric;ovoid;hemispheric;globose;conic +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
6 +  and 8 +
aristate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
exalbuminous +
sparingly branched distally +  and weakly moderately winged +
3 (?) +  and 10 (?) +
hairy +  and glabrous +
1 +  and 3 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Helenium bigelovii +
Helenium +
species +
urceolate +  and campanulate +
dilated +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
shrub +  and subshrub +