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.
 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 +