Pyrrocoma clementis

Rydberg

Bull. Torrey Bot. Club 27: 625. 1900.

Common names: Tranquil goldenweed
Endemic
Synonyms: Haplopappus clementis (Rydberg) S. F. Blake
Treatment appears in FNA Volume 20. Treatment on page 416. Mentioned on page 414.
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Plants 3–18 (–40) cm. Stems 1–5, ascending or decumbent, pale and often red-tinged, sparsely villous, sometimes tomentose. Leaves (persistent, thick, ± fleshy); basal petiolate, blades lanceolate to narrowly oblanceolate, 50–140 × 9–16 mm, margins usually entire, sometimes slightly undulate, sometimes denticulate, sparsely ciliate, apices acute to obtuse, faces usually glabrous, sometimes puberulent or villous, eglandular; cauline sessile, lanceolate to ovate, 20–40 × 5–10 mm, bases clasping, auriculate. Heads usually borne singly, terminal, sometimes 2–3 smaller proximally, not subtended by leaflike bracts. Peduncles 0.5–1 cm. Involucres broadly campanulate, 8–15 × 20–35 mm. Phyllaries in 3–4 series, green with white margins, sometimes yellowish, lanceolate to oblanceolate, 6–12 mm, unequal, margins entire, ciliate, apices obtuse to acute or acuminate, faces villous. Ray-florets 21–55; corollas 10–18 mm. Disc-florets 100+; corollas 6–8 mm. Cypselae subfusiform, not compressed, 4–7 mm, 4-angled, faces striate, sericeous or glabrous; pappi tawny, 6–8 mm.

Discussion

Varieties 2 (2 in the flora).

Pyrrocoma clementis is recognized by its villous to tomentose stems, villous and ciliate phyllaries, and high elevation habitat, often well above tree-line. It is similar to P. uniflora, which has narrower heads, finer floccose-tomentose pubescence, and grows at lower elevations.

Selected References

None.

Key

1 Phyllaries narrowly obovate, abruptly acute; cypselae sericeous Pyrrocoma clementis var. clementis
1 Phyllaries narrowly lanceolate, apices attenuate; cypselae glabrous Pyrrocoma clementis var. villosa

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... more about "Pyrrocoma clementis"
not tailed +, rounded +  and obtuse +
distinct +
obtuse;acute or acuminate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
corymbiform +, loose +, spiciform +  and racemiform +
indeterminate +  and determinate +
David J. Bogler +
Rydberg +
oblanceolate +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
auriculate +
3mm;30mm +
compound +  and simple +
5 cm50 mm <br />0.05 m <br /> (14 cm140 mm <br />0.14 m <br />) +
lanceolate;narrowly oblanceolate +
0.9 cm9 mm <br />0.009 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceolate +  and ovate +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
Tranquil goldenweed +
not 2-lipped +  and actinomorphic +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
4-angled +, not compressed +  and subfusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Colo. +, Utah +  and Wyo. +
glabrous +, sericeous +, striate +, villous +  and puberulent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and disciform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
campanulate +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
linear +  and elliptic +
denticulate +  and undulate +
3mm +  and 30mm +
2-carpellate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
yellowish +  and green +
appressed +  and loosely spreading +
lanceolate +  and oblanceolate +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Bull. Torrey Bot. Club +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
pale and often red-tinged +
decumbent +  and ascending +
tomentose +  and villous +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus clementis +
Pyrrocoma clementis +
Pyrrocoma +
species +
tubular-funnelform +
50 cm500 mm <br />0.5 m <br /> (90 cm900 mm <br />0.9 m <br />) +
stipitate-glandular +, glabrous +, tomentose +  and sericeous +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
18 cm180 mm <br />0.18 m <br /> (40 cm400 mm <br />0.4 m <br />) +