Rudbeckia klamathensis

P. B. Co×& Urbatsch

Castanea 59: 309. 1994.

Common names: Klamath coneflower
EndemicConservation concern
Basionyms: Rudbeckia californica var. intermedia Perdue Rhodora 59: 289. 1957
Treatment appears in FNA Volume 21. Treatment on page 48. Mentioned on page 47.

Perennials, 50–100 cm (rhizomatous, roots fibrous). Leaves greenish blue (± glaucous), blades ovate to elliptic, often lobed, herbaceous, bases attenuate to rounded, margins entire, coarsely dentate, or crenate, apices acute, faces glabrous or sparsely hairy (at least on abaxial veins); basal petiolate, 15–65 × 4–15 cm; cauline petiolate or sessile, 7–35 × 4–14 cm. Heads borne singly or (2–10) in ± corymbiform arrays. Phyllaries to 1.5 cm (margins ciliate, hairs appressed, apices acute to rounded). Receptacles ovoid to conic; paleae 5–6 mm, apices acute, abaxial tips hairy. Ray-florets 7–15; laminae elliptic or oblong, 25–35 × 7–14 mm, abaxially hairy. Discs 15–35 × 12–22 mm. Disc-florets 180–300+; corollas yellowish green, 3.5–4 mm; style-branches ca. 1.5 mm, apices acute to obtuse. Cypselae 4.5–6 mm; pappi coroniform or of 5–8 scales, to 1.5 mm. 2n = 36.


Phenology: Flowering late summer–fall.
Habitat: Along streams
Elevation: 1000–1600 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

... more about "Rudbeckia klamathensis"
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 +
P. B. Co×& Urbatsch +
15 cm150 mm <br />0.15 m <br /> (65 cm650 mm <br />0.65 m <br />) +
4 cm40 mm <br />0.04 m <br /> (15 cm150 mm <br />0.15 m <br />) +
attenuate +  and rounded +
Rudbeckia californica var. intermedia +
compound +  and simple +
lobed;ovate;elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
sessile +  and petiolate +
7 cm70 mm <br />0.07 m <br /> (35 cm350 mm <br />0.35 m <br />) +
4cm +  and 14cm +
Klamath coneflower +
yellowish green +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 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 /> (3.5 cm35 mm <br />0.035 m <br />) +
12mm;22mm +
1000–1600 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Along streams +
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 +
25mm;35mm +
oblong +  and elliptic +
7mm;14mm +
sessile +  and petiolate +
greenish blue +
deltate +  and lance-linear +
crenate +  and dentate +
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 5-8 scales +  and coroniform +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Flowering late summer–fall. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
ovoid;conic +
connate +  and distinct +
5 +  and 8 +
unequal +
exalbuminous +
Endemic +  and Conservation concern +
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 klamathensis +
Rudbeckia sect. Macrocline +
species +
cylindric +
serrate +, dentate +  and entire +
50 cm500 mm <br />0.5 m <br /> (100 cm1,000 mm <br />1 m <br />) +
shrub +  and subshrub +