Dicliptera transvaalensis C.B.Clarke

Species

Angiosperms > Lamiales > Acanthaceae > Dicliptera

Characteristics

Scrambling, trailing or decumbent suffruticose perennial, several-branched from a woody rootstock, to 1 m long, sometimes rooting at nodes of trailing portion; stems 6-angular, pale-ridged, with rather dense pale spreading or retrorse eglandular hairs. Leaves sometimes immature at flowering, lanceolate or narrowly ovate, 2.3-5 x 0.4-1.3 cm, base cuneate or shortly attenuate, apex acute, apiculate, surfaces pale-pubescent, particularly on veins beneath and midrib above; lateral veins 4-5 pairs; petiole 2-7 mm long. Inflorescence axillary, 1(2) umbels of (1)2-4(5) cymules per axil, umbels often partially compounded; umbel peduncle 4-32 mm long, umbels in uppermost axils rarely sessile; main axis bracts linear-lanceolate, 4-9 x 0.5-1 mm, those of lowermost umbels on stems sometimes more leafy and lanceolate, to 13 x 3 mm; cymules pedunculate, usually with peduncle of one cymule much longer than others, (2)5-32 mm long; cymule bracts green or smaller of pair turning brown, pairs ± highly unequal, ratio 1.25-1.9:1, larger bract subulate or slightly oblanceolate, (9)12-18 x 1.5-3(3.5) mm, apex mucronulate, external surface pale spreading-pubescent throughout, only midrib prominent, margin pale-hyaline in lower half; bracteoles as cymule bracts but lanceolate, 8-10.5 x 1.5 mm. Calyx lobes 5-6 mm long, with or without few minute glandular hairs, margin hyaline, ciliate. Corolla 17-20 mm long, pink to mauve with purple guidelines, pubescent externally; tube 7-9 mm long; lip held in upper position narrowly oblong, 8-11 x 2.5-3.5 mm, palate puberulous towards mouth; lip held in lower position ovate or elliptic, 8-11 x 5.5-8.5 mm. Staminal filaments 4.5-7 mm long, pubescent; anther thecae 0.7-1 mm long, superposed. Style sparsely strigulose or glabrous. Capsule 9.5-11 mm long, pale eglandular-pubescent; placental base inelastic. Seeds c.2 mm in diameter, sparsely tuberculate mainly around rim, tubercles shortly clavate.
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Evergreen suffruticose perennial up to 1 m high. Leaves ovate to narrowly elliptic, acuminate, attenuate at base, 26-41(-42) x 8-13(-14) mm, with many multicellular eglandular trichomes and cystoliths; petiole (1.7-)2.0-4.3(-4.6) mm. Inflorescence of monochasial cymes (inflorescence units), (1 or 2)3(4) umbellately arranged, sometimes compounded; inflorescence axis (4.0-)4.2-7.0(-7.4) mm long; longest peduncle of inflorescence units (2.4-)4.1-12.9 mm long. Bracts: secondary bracts 2, free, lanceolate, (4.7-)5.1-6.6 x 0.6-1.0(-1.1) mm, pubescent, sessile; tertiary bracts oblanceolate, unequal, larger one (13.6-)13.8-16.1(-16.4) x (0.4-)0.6-1.1(-1.5) mm, almost tomentose, trichomes multicellular and eglandular. Calyx: tube 1.5 mm deep; lobes, lanceolate, 5.5 mm long, margins membranous and ciliate, with small glandular trichomes on outer surface. Corolla: tube (7.3-) 7.5-9.0 mm long, sericeous to tomentose; lip in lower position ovate, (7.1-)8.8(-9.0) x 2.0-2.7 mm; lip in upper position narrowly elliptic, 7.0-8.4(-8.8) x (-3.6) mm; light purple with dark purple honey-guides on white background on lip in upper position. Stamens: filaments with short and long multicellular eglandular trichomes, white; anther thecae superposed, purple. Disc shallowly cupular with crenate top and 2 short stubby awns. Gynoecium: stigma shortly bilobed; style sparsely strigose; ovary ovoid, sparsely pubescent. Fruit pubescent, 9.0-10.1 x 2.1-2.5 mm. Seeds 2.0-2.2 x 1.8-2.0 mm, rough and tuberculate. Flowering time: in the field the plants were beginning to flower in January, and were flowering profusely when revisited in May, whereas the plants in cultivation were still in flower in August of the same year. It appears that the species flowers throughout the year, but more profusely in winter.
Perennial herb, up to 300 mm tall. Leaves with grey-green indumentum of eglandular trichomes. Tertiary bracts narrower than 4 mm and longer than 14 mm, length to breadth ratio less than 6.2 : 1. Corolla longer than 14 mm. Flowers mauve.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.65
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-12
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Dicliptera transvaalensis world distribution map, present in Botswana and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:47711-1
WFO ID wfo-0000646066
COL ID 7VHWM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dicliptera transvaalensis Peristrophe transvaalensis