Pyrrocoma integrifolia

(Porter ex A. Gray) Greene

Erythea 2: 69. 1894.

Common names: Smooth goldenweed
Endemic
Basionym: Haplopappus integrifolius Porter ex A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 128. 1884 (as Aplopappus)
Treatment appears in FNA Volume 20. Treatment on page 419. Mentioned on page 414, 416, 417, 418.

Plants 12–50 cm. Stems 2–5, erect or ascending, red-tinged, glabrous or sparsely tomentose distally, eglandular. Leaves: basal petiolate, blades oblanceolate to spatulate, 70–210 × 10–35 mm, margins entire or undulate, ciliate; cauline sessile, linear-lanceolate, 30–80 × 2–10 mm, bases clasping; faces glabrous, eglandular. Heads usually 2–4 in racemiform arrays, sometimes borne singly. Peduncles 0–4 cm. Involucres hemispheric, 11–17 × 20–30 mm. Phyllaries in 2–3 series, oblanceolate to oblong, 7–13 mm, unequal, bases chartaceous, margins entire, densely ciliate, apices green, acuminate, faces glabrous. Ray-florets 18–45; corollas 10–20 mm. Disc-florets 80–100; corollas 6.5–10 mm. Cypselae oblong-fusiform, 5–7 mm, 4-angled, faces striate, glabrous; pappi tawny, 6–9 mm. 2n = 12.


Phenology: Flowering Jun–Sep.
Habitat: Alkaline meadows, grassy and shrubby openings in pine forests
Elevation: 1200–2100 m

Discussion

Pyrrocoma integrifolia is recognized by its short stature, entire leaves with undulate margins, and densely ciliate phyllaries. R. A. Mayes (1976) suggested that it is related to P. crocea, differing mainly in its unequal, densely ciliate, acuminate phyllaries.

Selected References

None.

Lower Taxa

None.

"[" 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 integrifolia"
not tailed +, rounded +  and obtuse +
distinct +
acuminate +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
(Porter ex A. Gray) Greene +
oblanceolate +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
attenuate +
3mm;30mm +
Haplopappus integrifolius +
compound +  and simple +
7 cm70 mm <br />0.07 m <br /> (21 cm210 mm <br />0.21 m <br />) +
oblanceolate;spatulate +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
linear-lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
Smooth goldenweed +
not 2-lipped +  and actinomorphic +
0.65 cm6.5 mm <br />0.0065 m <br /> (1 cm10 mm <br />0.01 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
4-angled +  and oblong-fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Idaho +, Mont. +  and Wyo. +
1200–2100 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Alkaline meadows, grassy and shrubby openings in pine forests +
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 />) +
1.1 cm11 mm <br />0.011 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
hemispheric +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
linear +  and elliptic +
undulate +  and entire +
3mm +  and 30mm +
2-carpellate +
persistent +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0 cm0 mm <br />0 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering Jun–Sep. +
with distinct , green apical patch +  and yellow-green +
appressed +  and loosely spreading +
oblanceolate +  and oblong +
0.7 cm7 mm <br />0.007 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
red-tinged +
ascending +  and erect +
tomentose +  and glabrous +
2 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus sect. Pyrrocoma +
Pyrrocoma integrifolia +
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 />) +