Hymenopappus filifolius var. tomentosus

(Rydberg) B. L. Turner

Rhodora 58: 237. 1956.

Endemic
Basionym: Hymenopappus tomentosus Rydberg Bull. Torrey Bot. Club 27: 633. 1900
Treatment appears in FNA Volume 21. Treatment on page 313. Mentioned on page 312.

Stems 30–60 (–70) cm. Leaves: basal axils ± densely tomentose, terminal lobes 3–6 mm; cauline 5–12. Heads 4–14. Peduncles 1–6 cm. Phyllaries 7–10 mm. Florets 30–40; corollas yellowish, 3–4.5 mm, throats 1.5–2.5 mm, lengths 3–4 (–6) times lobes; anthers 2.5–3 mm. Cypselae 4.5–5 mm, hairs 0.5–1 mm; pappi 0.8–1.8 mm. 2n = 34.


Phenology: Flowering May–Jun.
Habitat: Sands, rocky soils, limestones
Elevation: 1000–2100 m

Discussion

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
(Rydberg) B. L. Turner +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
decurrent +
Hymenopappus tomentosus +
compound +  and simple +
toothed +
1-2+ times pinnately lobed ultimate margins usually entire +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
5 (?) +  and 12 (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
less hirtellous +  and villous +
obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
1000–2100 m +
tomentose +, hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sands, rocky soils, limestones +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
obconic;hemispheric +
cauline +  and basal +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (5 cm50 mm <br />0.05 m <br />) +
deltate +  and filiform +
0.5mm +  and 2mm +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
of 12 +  and 22 orbiculate to spatulate scales +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Flowering May–Jun. +
scarious-margined +
0.3 cm3 mm <br />0.003 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
5 +  and 13 +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
12 +  and 22 +
orbiculate +  and spatulate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
exalbuminous +
scapiform +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Hymenopappus filifolius var. tomentosus +
Hymenopappus filifolius +
variety +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
3-4(-6) times lobes +
campanulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
toothed +  and entire +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
tree +, shrub +  and subshrub +