Rudbeckia californica

A. Gray

Proc. Amer. Acad. Arts 7: 357. 1868.

Common names: California coneflower
Endemic
Treatment appears in FNA Volume 21. Treatment on page 48. Mentioned on page 47.

Perennials, 50–180 cm (rhizomes stout, plants not colonial, roots fibrous). Leaves green, blades lanceolate to ovate or elliptic, herbaceous, sometimes pinnately lobed, bases attenuate, ultimate margins entire or coarsely toothed, apices acute, faces (abaxial) sparsely hairy or glabrous (adaxial); basal petiolate, 20–60 × 5–15 cm; cauline petiolate or sessile, 10–30 × 3–15 cm. Heads borne singly or (3–12) in ± corymbiform arrays. Phyllaries to 2 cm. Receptacles conic to columnar; paleae 5–6 mm, apices obtuse to acute, abaxial tips densely hairy. Ray-florets 8–21; laminae linear to elliptic or oblong, 3–6 × 1–1.6 cm, abaxially hairy. Discs 15–60 × 14–25 mm. Disc-florets 200–300+; corollas greenish yellow, 4–5 mm; style-branches ca. 1.5 mm, apices acute to rounded. Cypselae 4–5 mm; pappi coroniform or of scales, to 1.5 mm. 2n = 36.


Phenology: Flowering summer–fall.
Habitat: Meadows, seeps, streamsides
Elevation: 1400–2400 m

Discussion

Rudbeckia californica grows in the central Sierra Nevada.

Selected References

None.

Lower Taxa

None.

... more about "Rudbeckia californica"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Lowell E. Urbatsch +  and Patricia B. Cox +
A. Gray +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
attenuate +
compound +  and simple +
lobed;lanceolate;ovate or elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
sessile +  and petiolate +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
3cm +  and 15cm +
California coneflower +
greenish yellow +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
hairy +  and glabrous +
flattened +, fusiform-terete +  and obpyramidal +
fertile +  and bisexual +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
fertile +  and bisexual +
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
14mm;25mm +
1400–2400 m +
glabrous +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Meadows, seeps, streamsides +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.1 cm1 mm <br />0.001 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
fusiform;turbinate or broadly campanulate +
oblong +  and elliptic +
1cm;1.6cm +
sessile +  and petiolate +
deltate +  and lance-linear +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
persistent +
0 +  and 2 +
of scales +  and coroniform +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Flowering summer–fall. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
conic;columnar +
connate +  and distinct +
2 +  and 6 +
unequal +
exalbuminous +
purplish +, bluish green +  and green +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Rudbeckia subg. Macrocline +
Rudbeckia californica +
Rudbeckia sect. Macrocline +
species +
cylindric +
serrate +, dentate +  and entire +
toothed +  and entire +
50 cm500 mm <br />0.5 m <br /> (180 cm1,800 mm <br />1.8 m <br />) +
shrub +  and subshrub +