Species within a genus

a-, an-, = denotes privative, negative; a-, = without, not, -less, un-; caulis, = the stalk or stem of a plant. (stemless, or apparently so)
(Ox, ld, BL)

angustus, = narrow, strait, close, contracted, small, not spacious; folium, = a leaf. (narrow-leaved)
(ld, BL)

asper, = as affecting the sense of touch: rough, uneven; -um, = means ‘characteristic of’. asperum, = an uneven rough place. (rough to the touch because of prickles, uneven, harsh, rugged) scaber, scabrum, = rough, scurfy, scabrous; scabby, mangy, itchy. (scabrous, i.e. rough or gritty to the touch on account of numerous minute projections)
(ld, BL)

dif-¸dis-, = asunder, in pieces, apart, in two, in different directions; color, = colour, hue, tint. discolor, = of another colour, not of the same colour. (not of the same colour, variegated)
(ld, BL)

flaccus, = flabby, hanging down; -idus, = indicates a state or an action in progress. flaccidus, = flabby, flaccid, pendulous. (flaccid, not able to hold up ones own weight)
(ld, BL)

scaber, scabrum, = rough, scurfy, scabrous; scabby, mangy, itchy. (scabrous, i.e. rough or gritty to the touch on account of numerous minute projections)
(ld, BL)

For Friedrich Richard Rudolf Schlechter (1872-1925)**, German botanist.
(Ch)

semi-, = half-. demi-, semi-; pappos, = a grandfather; pappus, = an old man; a grandfather; the wooly hairy seed of certain plants. (apical tuft of hair or bristles or homologous appendages on fruits of compsitae) pappos, = the downy or feathery appendage on many fruits , especially Compositae, as thistles, dandilions etc., hence extended to the reduced calyx of Compositae generally, whether downy, bristly, scaly, toothed or membranous; -osus, = indicates abundance or full or marked development.
(ld, LS, BL, Ox)