Erigeron procumbens

(Houstoun ex Miller) G. L. Nesom

Sida 11: 249. 1985.

Common names: Corpus Christi fleabane
Illustrated
Basionym: Aster procumbens Houstoun ex Miller Gard. Dict. ed. 8, Aster no. 32, plate 58, fig. 2. 1768
Synonyms: Erigeron myrionactis Small
Treatment appears in FNA Volume 20. Treatment on page 347. Mentioned on page 261.

Perennials, 5–40+ cm; apparently taprooted, initially producing basal rosettes from roots or simple caudices, herbaceous, leafy runners abruptly evident. Stems ± prostrate (rooting at nodes), hirsute to hirsutulous, eglandular. Leaves basal (commonly persistent) and cauline; blades oblanceolate to spatulate or cuneate, 20–40 (–80) × 5–25 mm, cauline even-sized and evenly spaced, margins usually coarsely serrate or crenate (distal teeth 2–5 pairs), faces hirsuto-villous, eglandular. Heads 1 (on terminal or axillary, scapiform, hirsuto-villous peduncles 5–25 cm). Involucres 6–8 × (8–) 10–16 mm. Phyllaries in 2–3 (–4) series, hirsute to villous, minutely glandular. Ray-florets 225–350; corollas usually white, sometimes pinkish, 5–7 mm, laminae (filiform) tightly coiling. Disc corollas 3.5–4.5 mm. Cypselae 0.7–1 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 12 (ray) or 16–23 (disc) bristles. 2n = 18.


Phenology: Flowering (Feb–)Mar–Jun(–Jul).
Habitat: Coastal or near-coastal localities, wet depressions between dunes to drier, open, sandy roadsides, occasionally on mudflats, around salt marshes
Elevation: 0–20 m

Distribution

V20-800-distribution-map.gif

La., Tex., Mexico (Tamaulipas), Mexico (Veracruz)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron procumbens"
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 +
(Houstoun ex Miller) G. L. Nesom +
decurrent +
Aster procumbens +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
oblanceolate;spatulate or cuneate +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
rugulose +  and muricate +
Corpus Christi fleabane +
not 2-lipped +  and actinomorphic +
pinkish +  and white +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
fertile +  and bisexual +
La. +, Tex. +, Mexico (Tamaulipas) +  and Mexico (Veracruz) +
0–20 m +
strigose +  and hirsuto-villous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Coastal or near-coastal localities, wet depressions between dunes to drier, open, sandy roadsides, occasionally on mudflats, around salt marshes +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
turbinate;hemispheric +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
more or less dentate to pinnatifid +  and entire +
crenate +  and serrate +
not +  and scarious +
2-carpellate +
Flowering (Feb–)Mar–Jun(–Jul). +
3-nerved +  and 1-nerved +
hirsute +  and villous +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +
erect +  and ascending +
hirsute +  and hirsutulous +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron myrionactis +
Erigeron procumbens +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
tree +, shrub +  and subshrub +