Pyrrocoma insecticruris

(L. F. Henderson) A. Heller

Muhlenbergia 1: 7. 1900.

Common names: Bug-leg goldenweed
Endemic
Basionym: Haplopappus insecticruris L. F. Henderson Bull. Torrey Bot. Club 27: 346. 1900 (as Aplopappus)
Synonyms: Haplopappus integrifolius subsp. insecticruris (L. F. Henderson) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 418. Mentioned on page 414.

Plants 25–60 cm. Stems 1–5, erect to curved-ascending, red-tinged, glabrous or sparsely tomentulose distally, eglandular. Leaves: basal petiolate, blades oblanceolate to elliptic, 100–300 × 10–50 mm, margins sharply serrate to undulate or entire, glabrous or villoso-ciliate on petioles and midribs; cauline short-petiolate to sessile, moderately reduced distally, bases clasping, margins ciliate, apices obtuse to acute, faces sparsely villous, eglandular. Heads 3–10 in narrow, elongate, racemiform arrays. Peduncles 1–8 cm. Involucres hemispheric, 10–18 × 15–28 mm. Phyllaries in 2–3 series, loose, green with whitish base, linear-lanceolate, 9–13 mm, subequal, margins entire, ciliate, faces villous proximally. Ray-florets 15–23; corollas 8–15 mm. Disc-florets 35–50; corollas 5–9 mm. Cypselae narrowly oblong, 4-angled, 3–6 mm, faces striate, densely sericeous; pappi tawny, 6.5–9.5 mm. 2n = 36.


Phenology: Flowering Jul–Aug.
Habitat: Gravelly moist meadows, grassy shrubby flats
Elevation: 1200–1700 m

Discussion

Pyrrocoma insecticruris has been treated as a subspecies of P. integrifolia; it differs from that species in its villous, serrate leaves, long-pedunculate heads, loose, linear-lanceolate phyllaries, sericeous cypselae, westerly distribution, and 2n = 36 chromosome number (R. A. Mayes 1976).

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 insecticruris"
not tailed +, rounded +  and obtuse +
distinct +
obtuse;acute +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
elongate +
David J. Bogler +
(L. F. Henderson) A. Heller +
oblanceolate +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
attenuate +
3mm;30mm +
Haplopappus insecticruris +
compound +  and simple +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
oblanceolate;elliptic +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
short-petiolate +  and sessile +
Bug-leg goldenweed +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
4-angled +  and oblong +
fertile +  and bisexual +
fertile +  and bisexual +
1200–1700 m +
sericeous +  and villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Gravelly moist meadows, grassy shrubby flats +
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 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
hemispheric +
1.5 cm15 mm <br />0.015 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
linear +  and elliptic +
villoso-ciliate +  and glabrous +
sharply serrate +  and undulate or entire +
3mm +  and 30mm +
2-carpellate +
persistent +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.95 cm9.5 mm <br />0.0095 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering Jul–Aug. +
appressed +  and loosely spreading +
linear-lanceolate +
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Muhlenbergia +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
red-tinged +
erect +  and curved-ascending +
tomentulose +  and glabrous +
1 +  and 5 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus integrifolius subsp. insecticruris +
Pyrrocoma insecticruris +
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 />) +