Jefea

Strother

Syst. Bot. Monogr. 33: 22, fig. 2. 1991.

Etymology: Spanish jefe, chief for Billie Lee Turner, b. 1925, Texan, botanist
Treatment appears in FNA Volume 21. Treatment on page 127. Mentioned on page 65, 67.
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 TaxonIllustrator 
FNA21 P20 Synedrella nodiflora.jpegSynedrella nodiflora
Jefea brevifolia
Eclipta prostrata
Bee F. Gunn
Yevonn Wilson-Ramsey
Marjorie C. Leggitt

Subshrubs or shrubs, 10–100 [–200+] cm. Stems erect, branched ± throughout. Leaves cauline; opposite (proximal) or alternate; petiolate; blades (usually 3-nerved) deltate, lanceolate, oblanceolate, or suborbiculate, bases cuneate to truncate, margins entire or lobed [toothed], faces scabrellous to hispid and glanddotted [densely woolly abaxially]. Heads radiate, borne singly. Involucres campanulate to hemispheric, 6–10+ mm diam. Phyllaries persistent, [22–] 26–38+ in 3–4+ series (outer 2–6+ spreading, similar to foliage in shape, texture, and indument, inner appressed, more papery to scarious or membranous). Receptacles convex to conic, paleate (paleae persistent, lance-linear, conduplicate). Ray-florets 5–13 [–20], pistillate, fertile; corollas yellow to orange. Disc-florets 30–60 [–100+], bisexual, fertile; corollas yellow to orange, tubes shorter than or about equaling funnelform throats, lobes 5, deltate. Cypselae weakly obcompressed, 3-angled (peripheral) or strongly compressed (inner) and oblanceolate to rounded-cuneate, some or all winged; pappi fragile or persistent, of 2–3 subulate scales or awns plus 2–8+ shorter, distinct or basally connate, erose or lacerate scales (often with an additional seta on inner shoulder of each cypsela). x = 14.

Distribution

sw United States, Mexico, Central America (Guatemala)

Discussion

Species 5 (1 in the flora).

Selected References

None.

Lower Taxa

"broader" is not a number.

... more about "Jefea"
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 +
Strother +
bristlelike +
2 +  and 8 +
coroniform +
cuneate to truncate +
compound +  and simple +
suborbiculate;oblanceolate;suborbiculate;oblanceolate;lanceolate;deltate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange +
hairy +  and glabrous +
oblanceolate +  and rounded-cuneate +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +, Mexico +  and Central America (Guatemala) +
Spanish jefe, chief +  and for Billie Lee Turner, b. 1925, Texan, botanist +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
campanulate;hemispheric +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
lobed +  and entire +
2-carpellate +
persistent +
connate +  and distinct +
26 +  and 38 +
unequal +  and subequal +
Syst. Bot. Monogr. +
bearing subulate enations +, hairy +  and bristly +
convex;conic +
2 +  and 3 +
lacerate +  and subulate +
exalbuminous +
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 +
Asteraceae (tribe Heliantheae) subtribe Ecliptinae +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
perennial +  and annual +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
shrub +  and subshrub +