Laënnecia eriophylla

eriophylla (A. Gray) G. L. Nesom

Phytologia 68: 218. 1990.

Basionym: Erigeron eriophyllus A. Gray Smithsonian Contr. Knowl. 5(6): 77. 1853 (as Eriophyllum)
Synonyms: Conyza eriophylla (A. Gray) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 37. Mentioned on page 36.

Annuals or perennials, 10–40+ cm. Leaves: bases obscurely, if at all, clasping, faces densely to loosely tomentose (at least abaxially, sometimes glandular beneath tomentum); proximal spatulate to oblanceolate, 20–30+ × 3–5+ mm, distally toothed or entire; distal similar, smaller, narrower, entire. Heads in ± corymbiform arrays. Involucres 5–7 mm. Receptacles 3–4 mm diam. Pistillate florets 40–80; corollas: equaling or surpassing styles, laminae 0.5–1 mm. Disc-florets 5–8. Cypselae pale tan to brownish, 2–3 mm, sparsely strigose, eglandular; pappi of 30–40+ white bristles in 2 series, outer ± persistent, usually 0.3–1 mm, sometimes 4–5 mm, inner persistent or ± fragile, 4–5+ mm.


Phenology: Flowering summer.
Habitat: Dry grasslands or woodlands
Elevation: 1500 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Laënnecia eriophylla"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
John L. Strother +
eriophylla (A. Gray) G. L. Nesom +
decurrent +
Erigeron eriophyllus +
compound +  and simple +
lobed;spatulate;ovate;obovate;oblong;oblanceolate +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
surpassing styles +  and equaling +
beaked +, 2-ribbed +  and 5-ribbed +
pale tan +  and brownish +
compressed +, oblong +  and elliptic or obovate +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +  and Mexico +
1500 m +
sessile-glandular +  and stipitate +
winged +  and beaked +
dispersed +
Dry grasslands or woodlands +
disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
spreading;erect +
deltate +
sessile-glandular +  and stipitate +
villous +, tomentose +, hirtellous +  and glabrate +
membranous +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2-carpellate +
persistent +
Flowering summer. +
lanceolate +  and linear +
less unequal +  and subequal +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
branched +  and simple +
appendaged +  and truncate +
papillate +  and smooth +
Conyza eriophylla +
Laënnecia eriophylla +
Laënnecia +
species +
entire +  and toothed +
120 cm1,200 mm <br />1.2 m <br /> (350 cm3,500 mm <br />3.5 m <br />) +
perennial +  and annual +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
tree +, shrub +  and subshrub +