Hymenoxys hoopesii

(A. Gray) Bierner

Sida 16: 6. 1994.

Common names: Owl’s-claws orange-sneezeweed
IllustratedEndemic
Basionym: Helenium hoopesii A. Gray Proc. Acad. Nat. Sci. Philadelphia 15: 65. 1864
Synonyms: Dugaldia hoopesii (A. Gray) Rydberg
Treatment appears in FNA Volume 21. Treatment on page 439. Mentioned on page 435, 436.

Perennials, 30–100 cm (polycarpic, often with blackish, stout rhizomes). Stems 1–4, green throughout to often purple-red-tinted proximally to purple-red-tinted throughout, branched distally, glabrous or ± hairy. Leaves: blades simple, glabrous or ± hairy, glanddotted; mid leaves simple. Heads 1–12 per plant, in paniculiform to corymbiform arrays. Peduncles 3–16 cm, ± hairy, tomentose distally near involucres. Involucres hemispheric to broadly campanulate, 12–17 × 19–26 mm. Phyllaries in 2 series, subequal; outer 16–24, basally connate 1/4–1/3 their lengths, ovate to lanceolate, 11–16 mm, apices acute; inner 20–26, obovate to elliptic, 7.5–8.5 mm, apices acuminate to acute. Ray-florets 14–26; corollas usually yellow-orange to orange, 21–45 × 4.2–8.5 mm. Disc-florets 100–325+; corollas 4.2–5.4 mm. Cypselae obpyramidal to narrowly obpyramidal, 3.5–4.5 mm; pappi of 5–7 lanceolate to lanceolate-acuminate scales 2.9–4.1 mm. 2n = 30.


Phenology: Flowering (May–)Jul–Aug(–Nov).
Habitat: Mountain meadows, open forests, along streams
Elevation: 1500–3700 m

Distribution

V21-1098-distribution-map.gif

Ariz., Calif., Colo., Idaho, Nev., N.Mex., Oreg., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Hymenoxys hoopesii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +  and corymbiform +
indeterminate +  and determinate +
Mark W. Bierner +
(A. Gray) Bierner +
decurrent +
Helenium hoopesii +
hairy +  and glabrous +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Owl’s-claws +  and orange-sneezeweed +
usually yellow-orange +  and orange +
2.1 cm21 mm <br />0.021 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.54 cm5.4 mm <br />0.0054 m <br />) +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
hairy +  and glabrous +
obpyramidal +  and narrowly obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +, N.Mex. +, Oreg. +, Utah +  and Wyo. +
1500–3700 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Mountain meadows, open forests, along streams +
discoid +  and radiate +
in paniculiform to corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
hemispheric;broadly campanulate +
1.9 cm19 mm <br />0.019 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
ovate +  and lanceolate +
unequal +  and subequal +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
2-carpellate +
persistent +
5 +  and 7 +
lanceolate +  and lanceolate-acuminate +
tomentose +  and hairy +
3 cm30 mm <br />0.03 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Flowering (May–)Jul–Aug(–Nov). +
28 +  and 50 +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
conic;ovoid;conic;ovoid;hemispheric +
2 +  and 11 +
aristate +
0.29 cm2.9 mm <br />0.0029 m <br /> (0.41 cm4.1 mm <br />0.0041 m <br />) +
exalbuminous +
subequal;unequal +
Illustrated +  and Endemic +
purple-red-tinted +  and green +
1 +  and 4 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Dugaldia hoopesii +
Hymenoxys hoopesii +
Hymenoxys +
species +
urceolate +  and campanulate +
dilated +
toothed +  and entire +
obovate +  and elliptic +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
shrub +  and subshrub +