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Rudbeckia alpicola

showy black-eyed susan, showy coneflower, Washington, Washington showy black-eyed susan, Wenatchee coneflower, Wenatchee Mountain, Wenatchee Mountain showy black-eyed susan, Wenatchee Mountains coneflower

Habit Perennials, to 150 cm (rhizomes stout, plants not colonial, roots fibrous).
Leaves

green, ovate to elliptic or deltate, pinnate to pinnatifid or lyrate-pinnatifid, herbaceous, faces moderately to densely hairy (hairs 1-seriate);

basal petiolate, 25–70 × 8–45 cm, lobes 3–9, bases rounded to acute, apices acute;

cauline petiolate or sessile, 12–50 × 5–40 cm, bases attenuate to cuneate, ultimate margins dentate to lobed, apices acute.

Receptacles

columnar;

paleae 5–7 mm, apices obtuse to acute, often apiculate, abaxial tips hairy.

Ray florets

0.

Disc florets

300–500;

corollas brown-purple, 4.2–5.8 mm;

style branches ca. 2 mm, apices acute.

Phyllaries

to 6 cm (foliaceous, faces scabrous).

Heads

borne singly or (2–10) in ± corymbiform arrays.

Cypselae

3.5–5 mm;

pappi of 4 scales, to 1 mm.

Discs

30–80 × 18–30 mm.

Rudbeckia alpicola

Phenology Flowering mid summer–fall.
Habitat Thickets, bogs, along streams
Elevation 200–1500 m (700–4900 ft)
Distribution
from FNA
WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Rudbeckia alpicola is known only from Chelan and Kittitas counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 21, p. 47.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Rudbeckiinae > Rudbeckia > sect. Macrocline
Sibling taxa
R. amplexicaulis, R. auriculata, R. californica, R. fulgida, R. glaucescens, R. graminifolia, R. grandiflora, R. heliopsidis, R. hirta, R. klamathensis, R. laciniata, R. maxima, R. missouriensis, R. mohrii, R. mollis, R. montana, R. nitida, R. occidentalis, R. scabrifolia, R. subtomentosa, R. texana, R. triloba
Synonyms R. occidentalis var. alpicola
Name authority Piper: Erythea 7: 173. (1899)
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