Diascia integerrima E.Mey. ex Benth.

Species

Angiosperms > Lamiales > Scrophulariaceae > Diascia

Characteristics

Stoloniferous perennial herb, stems many from the crown, tufted, branching mostly low down, mostly up to c. 450 mm tall, but reaching 1 m or more if straggling up through other vegetation, c. 2 mm diam., erect, glabrous. Leaves mostly 13-40 x 1-3 (-6) mm (ratio 6-16:1), becoming smaller upwards, linear to oblong-lanceolate, apex subacute, base cuneate, margins entire or with an occasional minute tooth, glabrous; petioles 1-3 mm long. Flowers several to many in terminal racemes; bracts up to 5 x 2 mm, lanceolate, pedicels c. 6-18 mm long, ascending at an angle of c. 45°, they and the inflorescence axis glandular-puberulous, hairs scarcely 0.25 mm long. Calyx segments spreading, lanceolate, two anticous ones 3-4 x 1.25-1.5 mm, three posticous ones slightly smaller, all green, glandular-puberulous outside. Corolla tube c. 5-6 mm long, not invaginated, deeply channelled on the anticous side forming the keel, two lateral spurs 4-6 mm long, directed straight down, the tips strongly incurved, with a patch of dark sessile glands within; limb c. 17-24 x 15-24 mm, anticous lobe 7-11 x 9-15 mm, with a raised keel at the base (part of the tube) separating the openings to the two spurs, two lateral lobes 5-8 x 5-9 mm, two posticous lobes 5-7 x 4-7 mm, all lobes subrotund, rose-pink, keel usually covered in dark sessile glands that extend briefly onto the palate, glands sometimes few or wanting, a few sometimes present below the upper sinuses, the “window” shallowly concave, yellow and maroon. Stamens standing erect, the anthers almost hidden under the upper lip, filaments 2.75-3 mm long, glandular-puberulous; anthers c. 0.75 mm long, cohering strongly; pollen yellow. Ovary 1.5 x 1 mm, deltoid in outline, ovules many in each loculus; style 1.5 mm long, stigma capitate, lying between the anthers. Capsules (5-)6-15 mm long, urceolate; seeds 1 mm long, curved, winged and ridged.
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Perennial herb, mostly 450 mm high, up to 1 m if scrambling; stolons present; stems tufted, branching near base, ± erect. Leaves narrow-linear to lanceolate, ± acute, glabrous; petioles 1-3 mm long. Flowers in racemes; pedicels 6-18 mm long, ascending. Corolla: tube keeled at base of lower lobe; lobes mostly pink, also purple-red and red-pink; keel often with dark sessile glands, spreading onto ridged palate; window somewhat hollow. Spurs 4-6 mm long, projecting slightly out and downwards, then somewhat tipping inwards. Flowering time Nov.-Mar., mainly Jan.
Perennial herb, up to 0.5 m high. Stems erect, slender, branching near base. Leaves with blade linear to narrowly ovate, 40 x 3 mm, apex acute, glabrous; petioles 1-3 mm long. Flowers: in racemes, heads ± 10 x 20 mm; styles ± 1.5 mm long; calyx lobes spreading; spurs incurved at tips, 4-6 mm long, held straight down; corolla with a raised keel, rounded lobes, lobes mostly pink, also purple-red and red-pink, dark gland dots cover mouth, window yellow and maroon; Nov.-Mar.
An erect herb. It keeps growing from year to year. It grows 30-90 cm tall. The stem is reddish brown, woody and branched. The leaves are simple and opposite. They are narrow and small. The flowers are in groups at the ends of the branches. The flowers are small and 10 mm long. They have long stalks are pink. The fruit is an oval smooth capsule.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.55 - 0.75
Mature height (meter) 0.45 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a subtropical plant.
Light 6-8
Soil humidity 2-5
Soil texture 6-8
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 8-10

Usage

The young leaves are used as a potherb.
Uses medicinal potherb
Edible leaves
Therapeutic use Potherb (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) 14 - 30
Germination temperacture (C°) 15
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -12
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Diascia integerrima world distribution map, present in Lesotho and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:801913-1
WFO ID wfo-0000644715
COL ID 6CRHX
BDTFX ID 62063
INPN ID 94897
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Diascia integerrima Diascia moltenensis Nemesia hastata