Jaumea

Persoon

Syn. Pl. 2: 397. 1807.

Etymology: For J. H. Jaume St. Hilaire, 1772–1845, French botanist
Treatment appears in FNA Volume 21. Treatment on page 253.
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 TaxonIllustrator 
FNA21 P40 Clappia suaedifolia.jpegClappia suaedifolia
Pseudoclappia arenaria
Jaumea carnosa
Yevonn Wilson-Ramsey
Linda Ann Vorobik
Yevonn Wilson-Ramsey

Perennials, to 30+ cm (rhizomatous or stoloniferous). Stems sprawling, ascending, branched mostly from bases. Leaves opposite; sessile; blades spatulate to linear (succulent), margins entire, faces glabrous. Heads radiate [discoid], borne singly. Involucres cylindric to obconic, 4–8+ mm diam. Phyllaries 12–15 in 3+ series (ovate to lanceolate, unequal, succulent to membranous). Receptacles conic, epaleate. Ray-florets [0] 3–10, pistillate, fertile; corollas yellow. Disc-florets 20–50+, bisexual, fertile; corollas yellow, tubes about equaling narrow, cylindric throats, lobes 5, deltate. Cypselae obconic to clavate or columnar (10-ribbed, glabrous); pappi usually 0, rarely persistent, of 1–5 subulate scales. x = 19.

Distribution

w North America, nw Mexico, South America

Discussion

Species 2 (1 in the flora).

Selected References

None.

Lower Taxa

... more about "Jaumea"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Persoon +
decurrent +
compound +  and simple +
spatulate;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
obconic +  and clavate or columnar +
fertile +  and bisexual +
fertile +  and bisexual +
w North America +, nw Mexico +  and South America +
For J. H. Jaume St. Hilaire, 1772–1845, French botanist +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cylindric;obconic +
deltate +
2-carpellate +
persistent +
12 +  and 15 +
bearing subulate enations +, hairy +  and bristly +
1 +  and 5 +
subulate +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Asteraceae (tribe Heliantheae) subtribe Jaumeinae +
cylindric +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +