Erigeron clokeyi

Cronquist

Brittonia 6: 214. 1947.

Common names: Clokey’s fleabane
Endemic
Treatment appears in FNA Volume 20. Treatment on page 291. Mentioned on page 271, 292.

Perennials, 3–20 (–30) cm; taprooted, caudices usually branched, retaining old leaf-bases. Stems usually ascending to erect, moderately hirsute to hispidulous (hairs spreading-deflexed), minutely glandular at least distally. Leaves basal (persistent) and cauline (petioles prominently ciliate, hairs spreading, thick-based); basal blades 1–3-nerved, narrowly oblanceolate (often folding), 20–50 (–80) × 1–5 mm, margins entire, faces strigose or hispidulous to hirsutulous, minutely glandular; cauline blades linear to linear-lanceolate, reduced distally to near heads. Heads 1 (–2). Involucres 4–7 × 6–11 mm. Phyllaries in 2–3 (–4) series (greenish), moderately hirsute, densely minutely glandular. Ray-florets 20–40 (–55); corollas blue, less commonly white to pink, 6–11 mm, laminae reflexing. Disc corollas 2.9–4.5 mm (throats tubular). Cypselae 1.8–2.5 mm, 2-nerved, faces sparsely strigose; pappi: outer of inconspicuous, fine setae, inner of (13–) 20–27 bristles.

Discussion

Varieties 2 (2 in the flora).

Erigeron clockeyi is found in the Great Basin and Sierra Nevada.

Selected References

None.

Key

1 Leaves hirsuto-strigose (hairs basally ascending, otherwise straight, antrorsely appressed); cypselae 2.2–2.5 mm; Charleston Mountains, Clark County, Nevada Erigeron clokeyi var. clokeyi
1 Leaves uniformly hispidulous to hirsutulous (hairs spreading to spreading-arching, stiff); cypselae 1.8–2 mm; California, c Nevada, wc Utah Erigeron clokeyi var. pinzliae
... more about "Erigeron clokeyi"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
Cronquist +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
linear +  and linear-lanceolate +
Clokey’s fleabane +
not 2-lipped +  and actinomorphic +
less commonly white +  and pink +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.29 cm2.9 mm <br />0.0029 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
Calif. +, Nev. +  and Utah +
strigose +, hispidulous +  and hirsutulous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
turbinate;hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
3-nerved +  and 1-nerved +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
inconspicuous +
branched +  and simple +
prostrate +  and decumbent +
usually ascending +  and erect +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron clokeyi +
Erigeron +
species +
inflated +  and tubular +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
tree +, shrub +  and subshrub +