Erigeron mariposanus

Congdon

Erythea 7: 185. 1900.

Common names: Foothill fleabane
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 316. Mentioned on page 270.
Revision as of 21:08, 29 July 2020 by imported>Volume Importer
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Perennials, 15–28 cm; taprooted (root or caudex branches 1–4 cm, rhizomelike or caudexlike). Stems decumbent-ascending (distal branches spreading-ascending, axillary tufts of smaller leaves prominent at most nodes), sparsely to moderately strigose (hairs ascending-appressed), eglandular. Leaves cauline; blades oblanceolate, (25–) 30–45 × (2–) 5–8 mm, reduced near heads, margins entire, faces sparsely to moderately strigose, eglandular. Heads 1 or 2–4 (in loosely corymbiform arrays). Involucres mostly 4–5 × 8–12 mm. Phyllaries in 3–5 series, outer (midnerves prominently orange-resinous) sparsely strigose (hairs thin-based), eglandular (inner: margins broadly scarious, nearly winglike). Ray-florets 18–22; corollas bluish, 5–8 mm, laminae sometimes coiling slightly at tips. Disc corollas 4–4.5 mm (throats slightly indurate, not inflated). Cypselae 2–2.4 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 28–32 bristles.


Phenology: Flowering Jun–Aug.
Habitat: Foothill woodlands, substrate unknown
Elevation: 600–800 m

Discussion

Of conservation concern.

Erigeron mariposanus is closely similar to E. aequifolius.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron mariposanus"
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 +
Congdon +
decurrent +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
oblanceolate +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
rugulose +  and muricate +
Foothill fleabane +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
600–800 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Foothill woodlands, substrate unknown +
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 /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate;hemispheric +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
petiolate +  and sessile +
erect;spreading +
deltate +
not +  and scarious +
2-carpellate +
Flowering Jun–Aug. +
3-nerved +  and 1-nerved +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
prostrate +  and decumbent +
decumbent-ascending +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron mariposanus +
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 /> (28 cm280 mm <br />0.28 m <br />) +
tree +, shrub +  and subshrub +