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.

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

"[" is not declared as a valid unit of measurement for this property."[" is not declared as a valid unit of measurement for this property.

... 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 />) +