antrorse


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antrorse

(ăn′trôrs′)
adj. Biology
Directed forward and upward, as the hairs on certain plant stems.

an′trorse′ly adv.
References in periodicals archive ?
5 cm long, abaxially completely covered by a coarse layer of white trichomes, adaxially sparsely and inconspicuously white lepidote except for the densely white lepidote apex, coarsely spinulose, spines sub-triangular, uncinate, blackish, 3-5 mm long, 8-20 mm apart, the basal ones prevailing antrorse, the upper ones prevailing retrorse.
15 mm apart from each other, uncinate, retrorse to antrorse, castaneous, glabrous.
5 cm, densely white-lepidote on both surfaces, glabrescent on the adaxial surface, pungent at the apex, the margin armed with yellowish curved antrorse and uncinate spines, 1.
3 cm, acuminate and pungent at the apex, armed with yellowish curved antrorse and uncinate spines; primary branches one per node, ascendent to divaricate, sessile, 6-11.
5-12 mm, pale castaneous adaxially, pale green abaxially, densely and minutely lepidote on both sides; blades linear, some inconspicuously narrowed toward the base, 75-80 x 7-8 cm, green with sparse darker green spots, sparsely and inconspicuously white-lepidote adaxially, densely white-lepidote abaxially with trichomes not at all obscuring leaf color and sometimes forming sparse crossbands, apex acute and apiculate, margins densely (at apex) sparsely (toward the base) spinose; spines triangular, uncinate, antrorse, castaneous toward the apex, the basal ones 1.
5 mm wide at the base, 4-9 mm apart, the basal ones nearly straight, the upper ones distinctly uncinate, antrorse.