Rigiopappus leptocladus

A. Gray

Proc. Amer. Acad. Arts 6: 548. 1865.

IllustratedEndemic
Treatment appears in FNA Volume 20. Treatment on page 49.

Leaf-blades mostly 9–30+ × 1–2 (–5+) mm. Peduncles often wiry, ± hirsutulous to pilosulous near heads. Involucres 4–7+ mm. Ray corollas: tubes 1.5–2+ mm, laminae narrowly elliptic, 0.3–1 mm. Disc corollas: tubes 0.2–0.4 mm, throats 1–1.5 mm, lobes 0.1–0.3 mm. Cypselae 4–5 mm; pappi 1–4+ mm or much reduced (rays). 2n = 18.


Phenology: Flowering Apr–Jul.
Habitat: Grassy sites, chaparral, pine forests, sagebrush scrub
Elevation: 100–1600(–2300) m

Distribution

V20-72-distribution-map.gif

Calif., Idaho, Nev., Oreg., Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Rigiopappus leptocladus"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
A. Gray +
decurrent +
compound +  and simple +
rugulose +  and muricate +
barbellulate +  and barbellate +
pale-yellow +, tinged with red or tinged with purple +  and yellowish +
beaked +, 2-ribbed +  and 5-ribbed +
less cylindric +  and fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +, Idaho +, Nev. +, Oreg. +  and Wash. +
100–1600(–2300) m +
hirsutulous +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grassy sites, chaparral, pine forests, sagebrush scrub +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
less cylindric;turbinate +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deltate +
2-carpellate +
persistent +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
less hirsutulous +  and pilosulous +
Flowering Apr–Jul. +
linear +  and lanceolate or subulate +
Proc. Amer. Acad. Arts +
nearly +, glabrous +  and hirsutulous +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
3 +  and 5 +
subulate +
exalbuminous +
Illustrated +  and Endemic +
branched +  and simple +
glabrate +, pilosulous +  and hirtellous +
subulate +  and filiform +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Rigiopappus leptocladus +
Rigiopappus +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +