Rhizomes long creeping, covered with membranous ovate-apiculate scales; rhizome scales comose in distinct grades on dorsal surface, bicolorous with a dark central streak of sclerotic cells and pale margins, which are denticulate to erose; blade lanceolate to oblanceolate, basally pinnatisect
and lobed to pinnatifid distally, with proximal lobe free; laminar scales scattered on abaxial surface and glabrescent on adaxial surface, with round to ovate scales with apiculate or caudate apices, center obscure brown, margins pale brown, fimbriate to ciliate; midribs and secondary veins not visible; sori oblong, with orbicular, peltate scales similar to those in the lamina; spores bilateral, abortive, prominently verrucate.
Petiolated leaves; blades ovate, pinnatilobate to pinnatisect
. Flowers pentamerous, pendulous.
The juvenile stage exhibits a rosette with large, dark green, simple, radicle, and pinnatisect
small leaves lacking flowering (Figure 1(a)).
It is characterized by large panicles of small globulous capitulums (2-3 mm diameter), with whitish involucres, and by pinnatisect
leaves which disappear after the blooming period, characterised by small (1-2 mm) pale yellow flowers having a pleasant odour (Figure 1).
See www.compare- definitions.com 53 cinquante-trois squarroso- W254 pinnatisect
54 cinquante-quatre Plectana A taxonomic quinqueserrata synonym used for Gasteracantha concriformis , the crab spider.
Carpenter and Jordan (1997) also placed fossils, including incomplete but pinnatisect
leaves with well-preserved cuticle, from the same site in the extant species L.
In any case, and following Flora Iberica, the dandelion of the Ciudad Universitaria can be commonly seen in cultivated lawns; it is a robust plant not more than 25 cm in size, with pinnatisect
leaves and saffron-yellow rays.
Petals white, rudimentary, or absent; uppermost leaves auriculate or sagittate, 6 entire, dentate, pinnatifid, or pinnatisect
Leaves alternate to rarely opposite, rosulate, clustered at the branch apices to clustered in the axils of the old leaves; petiolate, sessile to sheathing at the base; blades entire, lyrate, pinnatisect
to pinnately compound, unarmed to spiny, pinnately, palmately to three-veined, rarely parallel-veined, glabrous to pubescent.