Synedrella

Gaertner

Fruct. Sem. Pl. 2: 456, plate 171, fig. 7. 1791.

Etymology: Etymology not clear perhaps alluding to clustering of heads
Treatment appears in FNA Volume 21. Treatment on page 127. Mentioned on page 65, 67.
Revision as of 22:12, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
 TaxonIllustrator 
FNA21 P20 Synedrella nodiflora.jpegSynedrella nodiflora
Jefea brevifolia
Eclipta prostrata
Bee F. Gunn
Yevonn Wilson-Ramsey
Marjorie C. Leggitt

Annuals, 10–80+ cm. Stems erect or ascending, branched from bases or ± throughout. Leaves cauline; opposite; petiolate; blades (usually 3-nerved) ovate to elliptic, bases cuneate to rounded, margins toothed, faces ± scabrous. Heads radiate, (sessile or subsessile) in axillary glomerules or borne singly. Involucres cylindric to campanulate, 3–6 mm diam. Phyllaries persistent, 2–5+ in 1 (–2) series (lanceolate, herbaceous to chartaceous). Receptacles convex, paleate (paleae lance-linear, scarious, flat or weakly cupped at bases). Ray-florets 2–9+ (in 1–2 series), pistillate, fertile; corollas yellowish. Disc-florets 4–12+, bisexual, fertile; corollas yellowish, tubes about equaling slightly ampliate, cylindric throats, lobes 4, rounded-deltate. Cypselae dimorphic, strongly obcompressed or flattened, narrowly oval and winged (ray, wings laciniate) or linear-cuneate and not winged (disc); pappi persistent, of 2 triangular scales (ray) or 2–3 subulate scales or awns (disc). x = 20?

Distribution

Introduced; Mexico, West Indies, Central America, South America, also in Asia, Africa, Pacific Islands, Australia

Discussion

Species 1.

Selected References

None.

"broader" is not a number.

... more about "Synedrella"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
John L. Strother +
Gaertner +
bristlelike +
2 +  and 3 +
subulate +
cuneate +  and rounded +
compound +  and simple +
ovate;elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
not winged +  and winged +
hairy +  and glabrous +
linear-cuneate +, oval +, flattened +  and obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
Mexico +, West Indies +, Central America +, South America +, also in Asia +, Africa +, Pacific Islands +  and Australia +
Etymology not clear +  and perhaps alluding to clustering of heads +
stipitate-glandular +, hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
cylindric;campanulate +
rounded-deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
unequal +  and subequal +
Fruct. Sem. Pl. +
bearing subulate enations +, hairy +  and bristly +
subulate +  and triangular +
exalbuminous +
ascending +  and erect +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Synedrella +
Asteraceae (tribe Heliantheae) subtribe Ecliptinae +
cylindric +
cylindric +
ampliate +
shorter to longer than campanulate +
toothed +  and entire +
10 cm100 mm <br />0.1 m <br /> (80 cm800 mm <br />0.8 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +
shrub +  and subshrub +