Erect or decumbent annual herb, 5-50 (90) cm tall; stems 6-angular with pale ridges, largely glabrous or sparsely retrorse-pubescent. Leaves often immature or absent at flowering; blade ovate or elliptic, 1.5-7 (10.5) x 1-4 (5.5) cm, base attenuate, apex (sub)attenuate, apiculate, surfaces sparsely antrorse-pubescent, soon glabrescent except for short hairs along the margin; lateral veins 4-6 pairs, conspicuous beneath; petiole 5-25 (50) mm long. Inflorescence axillary, developing even at lowermost nodes, (1) 2-3 umbels of 3-5 cymules per axil, umbels often becoming compounded and forming dense axillary fascicles; primary peduncle 1-5 (20) mm long, shortly pubescent; main axis bracts linear-lanceolate, 2.5-7.5 mm long; cymules subsessile, bract pairs slightly to strongly unequal, ratio 1.2-1.5:1, green with a pale-hyaline margin towards base, larger bract elliptic, obovate, oblanceolate or linear, 5-8.5 (10) x 1-2.7 (4) mm, apex attenuate into a curved mucro, margin often densely pilose-ciliate below, hairs shorter towards apex, surface with hairs of variable length, longest on prominent midrib; bracteoles linear-lanceolate, 4-6 mm long, green with hyaline margin, indumentum as cymule bracts or with additional short glandular hairs. Calyx lobes 2.5-3.5 mm long, sparsely pubescent and with minute glandular hairs externally. Corolla 4-6 mm long, pink to purple (rarely ?white), pubescent externally, in our region often found only in bud and then probably cleistogamous; chasmogamous flowers with tube 3-4 mm long; lip held in upper position oblong, 1.5-2.5 x c.1 mm; lip held in lower position broadly flabellate, 1.2-1.8 x 1.5-3 mm, curved around stamens. Staminal filaments 0.8-1.6 mm long, pubescent above; anther thecae 0.2-0.4 mm long, slightly overlapping, highly oblique. Style glabrous. Capsule 3-4.5 mm long, puberulous, sometimes with short glandular hairs at apex; placental base elastic. Seeds 0.75-1 mm in diameter, with minute slender hooked tubercles.
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An annual herb. It has many branches. It can be slightly erect or lie along the ground. The twigs are hairy on the angles. The leaf stalks are 2-3 cm long. The leaves are oval and 4-8 cm long by 2-4 cm wide. They are rounded at the base and taper to the tip. The flowers are pink spotted with purple. They are 5 mm long. They are in dense groups in the axils of leaves with bracts attached that wrap around the flower. The fruit is a narrowly oval capsule 4 mm long and with 4 seeds. The seeds are 1 mm across. They have lines on them.
Annual herb, up to 0.6 m high. Tertiary bracts narrower than 3 mm and fringed with white hairs. Inflorescence often produced at first or second node, often compounded. Corolla shorter than 8 mm. Capsules shorter than 5 mm. Flowers purple or lilac.
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