antrorse

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antrorse

[′an‚trȯrs]
(biology)
Turned or directed forward or upward.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Leaves 5-11, basal; blades 9-32 cm long, 2.6-5.2 mm wide, ascending, membranaceous, flattish, glabrous, the margins antrorsely scabrous, terminating in a scabrate attenuated tip; inner band of leaf sheaths hyaline or pale brown, glabrous, apex concave; ligules 2-3.5 mm long, acute.
Leaves basal, with blades 20-60 cm long, (2.5-) 3.5-6.5 mm wide, ascending, flat to broadly U-shaped, glabrous proximally, often papillate-scabrescent distally (scattered above and on midrib below), the margins antrorsely scabrous, terminating in a 3-angled, scabrid attenuated tip; inner band of leaf sheaths hyaline or pale brown, glabrous, the apex slightly concave; ligules 1.5-3.5 mm long, rounded to subacute.
Leaves 3-8, essentially basal; sheaths 2.2-4 cm long, greenish-white to ochraceous, strongly ribbed, old sheath bases ochraceous to brown, sometimes becoming fibrous, the ventral side and margins scarious, hyaline, colorless or yellowish, easily torn, finely veined, the apex shallowly concave; ligule irregularly truncate to rounded, up to 1.6 mm long, the free portion stramineous, 0.2 mm wide; blades filiform, 6-42 cm long, 0.3-0.8 mm wide, curling, U-folded to V-folded, margins strongly antrorsely scabrous, especially proximally, the apex becoming triquetrous.