Erigeron piscaticus

G. L. Nesom

Phytologia 67: 304. 1989.

Common names: Fish Creek fleabane
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 338. Mentioned on page 264.
Revision as of 21:14, 29 July 2020 by imported>Volume Importer
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Annuals, 15–40 cm; taprooted. Stems (multiple) procumbent or ascending-decumbent, sparsely and evenly hirsute to hispido-pilose, minutely and densely stipitate-glandular. Leaves basal and cauline (proximal largest); blades obovate, 10–22 × 2–7 mm, slightly reduced distally, margins entire or rarely 1-toothed, faces sparsely pilose, minutely glandular. Heads 1–4 (per stem). Involucres 2.8–3.4 × 4–6 mm. Phyllaries in 2–3 series, hispido-pilose, minutely glandular. Ray-florets 45–58; corollas 3–3.7 mm, laminae not coiling or reflexing, white, often drying blue. Disc corollas 1.5–1.8 mm (throats indurate and inflated). Cypselae 0.8–1 mm, 2-nerved, faces sparsely strigose to glabrate; pappi: outer of setae, inner of 8–11 bristles.


Phenology: Flowering May–Jul(–Oct) (perhaps both earlier and later after rain).
Habitat: Gravelly and sandy washes
Elevation: 700–1200 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron piscaticus"
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 +
G. L. Nesom +
decurrent +
1 cm10 mm <br />0.01 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
obovate +
reduced +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
rugulose +  and muricate +
Fish Creek fleabane +
not 2-lipped +  and actinomorphic +
yellow +, usually white +  and bluish or purplish +
0.3 cm3 mm <br />0.003 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
fertile +  and bisexual +
700–1200 m +
sparsely strigose +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Gravelly and sandy washes +
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 />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
turbinate;hemispheric +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
blue +  and white +
not coiling +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
more or less dentate to pinnatifid +  and entire +
1-toothed +  and entire +
not +  and scarious +
2-carpellate +
Flowering May–Jul(–Oct) (perhaps both earlier and later after rain). +
3-nerved +  and 1-nerved +
hispido-pilose +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
branched +  and simple +
ascending-decumbent +  and procumbent +
prostrate +  and decumbent +
erect +  and ascending +
stipitate-glandular +, evenly hirsute +  and hispido-pilose +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron piscaticus +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
15 cm150 mm <br />0.15 m <br /> (40 cm400 mm <br />0.4 m <br />) +
tree +, shrub +  and subshrub +