Herbs, annual, procumbent or clambering. Stems 30-90 cm high, 4-angled, 1-4 mm in diam., branched from base, retrorsely aculeate along angles, glabrescent to pilose at nodes. Leaves at middle stem region in whorls of 6-10, subsessile; blade drying papery, narrowly oblanceolate to narrowly oblong-oblanceolate, 10-60 × 3-10 mm, usually somewhat pilosulous or hispidulous adaxially, retrorsely aculeolate along midrib abaxially, base acute, margins flat to thinly revolute, retrorsely aculeolate, apex acute and shortly mucronate; vein 1. Inflorescences terminal and axillary, cymes 2- to several flowered; axes glabrous to aculeolate; bracts ± leaflike or none, 1-5 mm; peduncles 1-5 cm; pedicels 1-30 mm, finally elongating and sometimes curved directly under fruit. Ovary subglobose, 0.3-0.5 mm, with uncinate trichomes. Flowers hermaphroditic. Corolla yellowish green or white, rotate, 1.5-2 mm in diam.; lobes 4, triangular to ovate, acute. Mericarps subglobose to kidney-shaped, 2.5-5 mm, with a dense cover of uncinate trichomes 0.4-1.2 mm from swollen base. Fl. Mar-Jul, fr. Apr-Nov.
"Annual 1–10 dm, the stems weak, retrorsely hooked-scabrous on the angles, ± scrambling, seldom much branched; lvs in whorls of (6)8, narrow, 1-nerved, cuspidate, 1–8 cm, retrorsely scabro-ciliate on the margins and often also on the midvein beneath, uncinate-hispid above; infls mostly 3–5-fld, on axillary peduncles or in 3’s on short branches; cor white, 4-parted, 1–2 mm wide; fr uncinate-hispid, or rarely smooth. Damp ground, usually in shade; circumpolar, and found over most of temperate N. Amer. Plants with relatively large frs (mostly 2.8–4 mm, exclusive of the bristles), and with lvs to 8 cm, said to be mainly tetraploid to octoploid (on x=11) are var. aparine. Plantswith smaller frs (mostly 2–3 mm), and the lvs not over 4 cm, said to have usually 2n=20, but sometimes to 2n=66, are var. echinospermum (Wallr.) Farw. (G. spurium; G. vaillantii)"
Annual climbing herb, stem with reflexed hairs or prickles. Leaves 6-8 in a whorl, 5-40 x 4-6 mm, linear, narrowly obovate, oblong, oblanceolate-elliptic, usually narrower below the middle, mucronate or cuspidate, midrib and margin scabridulous, upper surface mostly hispid, sessile or shortly petioled. Inflorescence axillary, 3-flowered; peduncle stout, 1.5-2 cm long. Corolla white; lobes oblong, c. 1 mm long, pedicel straight, enlarged and up to 8 mm in fruit. Fruit 2-5 mm in diam., covered with dense hooked hairs or setae, mericarps sometimes separated and free.
30–150 cm, niederliegend oder kletternd, meist unverzweigt. Stängelkanten durch rückwärts gekrümmte Stachelchen sehr rau und klettend. Blätter zu 6–8 im Quirl, 1–5 cm lang und 2–8 mm breit, mit 0,6–1,2 mm langer Stachelspitze, am Rand und au
|Jack at the hedge||English||IE|
|Caglio asprello, Attacavesti||Italian||CH|