Herbs annual or perennial, many branched, pilose. Stipule subulate; petiole 0.5-1 cm, pilose; leaf blade elliptic or ovate-oblong, 1.5-3 × 1-2 cm, hairy only on veins abaxially, glabrous adaxially, lateral basal veins 1/3 as long as leaf blade, base broadly rounded, margin crenate, apex obtuse. Cymes opposite to leaves, 1-3-flowered; peduncle very short. Sepals ca. 5 mm. Petals nearly spatulate, 5-6 mm. Stamens 15-20; filaments 5-6 mm. Ovary 3-loculed. Capsule 1-3-fascicled, long cylindrical, 5-7 × ca. 0.3 cm, apex beaked. Seeds separated by septum. Fl. Aug, fr. Sep.
This species is very variable in leaf-shape, size, pubescence and, particularly if it is grazed or trampled, becomes semiprostrate and can be confused with C. asplenifolius. It is, however, always an annual, whilst C. asplenifolius is always a perennial.
Herbaceous or half-woody annual, 1–2 ft. high
Fig. 18/12 (fruit, p. 103), 20 (p. 112).
Seeds oblong-ovoid, blackish and pruinose, up to 1 mm in diameter, smooth.
Petals 4–5, 5–7 mm long, 2–2.5 mm wide, obovate tapering to a short ciliate claw; stamens ∞; ovary cylindric, 3 mm long, shortly pubescent.
Sepals 4–5, 5.5–6.3 mm long, 1 mm wide, dorsal surface pubescent especially at base.
Capsule cylindric, torulose, 2.5–6.5 cm long, 1–2.5 mm wide, held erect, straight or slightly curved, splitting into 3, rarely 4, valves, glabrous when mature, covered with scattered stellate hairs especially when young.
Annual herb to 1 m, rarely to 1.5 m; stems often purplish, covered with spreading setulose pubescence when young, on older stems pubescence confined to one side of stem.
Inflorescence of 1–3-flowered cymes; bracts up to 3.3 mm long, ciliate; peduncles ± 1 mm long, lengthening in fruit; pedicels ± 1 mm long.
Leaves narrowly elliptic to elliptic, ovate or lanceolate, 4–9(–12.5) cm long, 0.6–2.4 cm wide, margins coarsely serrate, with a pair of basal setae 0.6–10 mm long, rounded or broadly cuneate at the base, acute to subacute, with pubescence on midrib, pubescence beneath especially prominent on midrib and veins; petioles 0.7–1.9 cm long, covered with setaceous hairs; stipules up to 1 cm long, pubescent.
Leaf-lamina 2–12 × 0·5–3·5 cm., lanceolate to oblong or narrowly oblong, apex acute or subacute, margin crenate-serrate, usually with a pair of setaceous basal appendages, rounded or broadly cuneate at the base, glabrous or setulose-pilose on both surfaces especially on the nerves; petiole up to 2–5 cm. long when low down on the stems but usually rather shorter, with a spreading setulose pubescence especially on the upper side; stipules c. 1 cm. long, setaceous, setulose-pubescent.
Annual herb up to c. 1 m. tall, erect and branching or sometimes with decumbent branches if the main stem is cut down or browsed; branchlets often purplish and when young with a spreading setulose pubescence not confined to one side of the stem.
Sepals 6–10 mm. long, narrowly lanceolate, usually caudate at the apex, often somewhat keeled, setulose-pubescent particularly on the keel.
Inflorescences of 1–3-flowered cymes borne opposite the upper leaves; peduncles c. 1 mm. long but lengthening in fruit, setose-pubescent; pedicels similar, c. 1 mm. long.
Petals yellow, the same length as the sepals, oblanceolate, with a short ciliate claw at the base.
Androgynophore c. 0·5 mm. long, extended above into a slightly undulate annulus.
Ovary trigonously subcylindric, very shortly pubescent, 3 (4)-locular; style 1–1·5 mm. long, glabrous.
Capsule many-seeded, 2·5–7 cm. long, held erect, straight or slightly curved, 3–1-angled, 3–valved; valves scabrous and sometimes somewhat torulose outside, with a series of hollows inside fitting the seeds.
Seeds dark brown, 1–1·3 × 0·7–1 mm., oblong-ovoid.
Erect or sometimes decumbent annual herb, 1 m high. Capsules up to 70 mm long, held erect, valves minutely scabrous. Peduncles up to 2 mm long. Flowers yellow.
Herbe'annuelle ou suffrutescente, dressée ou prostrée, ramifiée, de 0,30-0,80 m de haut; tiges pubescentes à glabrescentes.'Feuilles'à stipules lancéolées-filiformes, de 7-12 mm de long, pubescentes; pétiole de 0,3-2 cm de long, pubescent; limbe oblong-lancéolé, lancéolé à elliptique, arrondi et muni de 2 appendices filiformes à la base, aigu à acuminé au sommet, de 2-12 cm de long et 0,5-3,5 cm de large, denté-serré, éparsement pubescent à ± glabrescent en dessus, pubescent en dessous.'Fascicules'oppositifoliés, 2-3-flores.'Fleurs'jaunes; pédicelle de 1-2 mm de long, pubescent; bouton obovoïde, courtement apiculé, de ± 4 mm de long et 2 mm de large; sépales lancéolés, acuminés, de ± 5 mm de long et 1,5-2,2 mm de large, éparsement pubescents sur le dos; pétales subonguiculés, obovales-oblancéolés, de ± 4 mm de long et 2 mm de large; disque annulaire, de ± 0,4 mm de long; étamines ∞; ovaire cylindrique, 3-6-côtelé, 3-loculaire, tomentelleux à poils en fascicules ± stipités; style plus court que l'ovaire, glabre; ovules ∞.'Capsules'étroitement cylindriques, de 2,5-7 cm de long et 0,2-0,3 cm de large, à bec entier, munies à l'état jeune de poils en fascicules ± stipités à stipe ± persistant et accrochant; valves 3, à cloisons transversales incomplètes.'Graines ∞, subrectangulaires, de ± 0,8 mm de long et 0,3 mm de large.
Annual herb up to about 1 m tall, erect and branching or sometimes with decumbent branches if the main stem is cut down or browsed; branchlets often purplish and in the young parts with a spreading, setulose pubescence not confined to one side of the stem. Leaf-blade 20-120 x 5-35 mm, lanceolate, oblong or narrowly oblong, apex acute or subacute, rounded or broadly cuneate at the base, margin crenate-serrate, usually with a pair of setaceous basal lobes, glabrous or setulose-pilose on both sides especially on the nerves; petiole up to 25 mm long low down on the stems but usually rather shorter, with a spreading, setulose pubescence especially on the upper side; stipules about 10 mm long, setaceous, setulose-pubescent. Inflorescence of 1-3-flowered cymes borne opposite the upper leaves; peduncles about 1 mm long but lengthening in fruit, setose-pubescent; pedicles similar, about 1 mm long. Sepals 6-10 mm long, narrowly lanceolate, caudate at the apex as a rule, often somewhat keeled, setulose-pubescent particularly on the keel. Petals yellow, oblanceolate, as long as the sepals, with a short basal claw with ciliate margin. Androgynophore about 0.5 mm long, extended above into a slightly undulate annulus. Stamens filamentous, 30-40. Ovary trigonously subcylindric, very shortly pubescent, 3- or occasionally 4-locular; style 1-1.5 mm long, glabrous. Capsule many-seeded, 25-70 mm long, erect, straight or slightly curved, 3-4-angled, 3-4-valved; valves scabrous and sometimes somewhat torulose outside, with a series of hollows inside fitting the seeds; seeds dark brown, 1-1.3 x 0.7-1 mm, oblong-ovoid.
Afrique tropicale et subtropicale; Inde; Amérique tropicale; Australie