Diosma oppositifolia L.

Species

Angiosperms > Sapindales > Rutaceae > Diosma

Characteristics

Shrubs 0.15-1 m tall, erect or sprawling with many stems arising from a stout persistent rootstock. Branches fairly slender, glabrous, dark brown, tough, devoid of leaves after about 2 years, tending to become decumbent. Branchlets erect, slender, numerous, sparsely puberulous, yellow, leafy. Leaves 5-10 mm long, longer in new shoots after fires, 1-1.3 mm broad, narrow-linear, lanceolate or often sub-falcate, glabrous, complicate when dry, opposite, spreading-erect, longer than the internodes, subulate, apex acute with a sharp point or obtuse with a callus, somewhat bent outwards; margins thin, narrowly cartilaginous, sparsely ciliolate; adaxial surface smooth, rather concave, channelled when dry; abaxial surface rounded, gland-dotted to either side, narrowed very slightly at the base; petiole about 0.5 mm long, adpressed. Inflorescence terminal with the sessile flowers arising in pairs or sub-terminal-axiliary with the flowers arising in opposite pairs etc. up to eight flowers in a group. Bract one to each flower, varying considerably, 2-4.5 mm long, 0.7-1.3 mm broad, lanceolate, acute, ciliolate, gland-dotted, adaxially flat, round backed, sessile, spreading. Bracteoles two, 1.1-2 mm long, 0.5-0.7 mm broad, lanceolate, sub-acute, sessile, glabrous, minutely gland-dotted; margins minutely ciliolate, narrowly translucent. Calyx lobes five, 2.3-2.5 mm long, 1.3 mm broad, lanceolate, acute, glabrous; margins minutely ciliolate, narrowly translucent. Petals five, 2.9 mm long, 1.8 mm broad, oblong-elliptic, obtuse, sessile, glabrous, white, spreading; margins slightly irregular, partly ciliolate. Staminodes none. Filaments five, becoming 1.5 mm long, acicular, glabrous. Anthers five, before anthesis 1 mm long, 0.7 mm broad, yellow; apical gland globose, sessile, Pollen 52 µ long, 27 µ broad, oblong. Disc sinuate, not much crenulate, green, stands wide open, exceeds the ovary, exudes nectar. Stigma 0.25 mm diam., capitellate, green. Style deflexed at first becoming 1.2 mm long, erect, glabrous. Ovary 5-carpellate, 0.9 mm long, 1 mm diam., glabrous, apices globose, Fruit 5-carpellate, 10-12 mm long, 12 mm diam., glabrous, gland-dotted; horns truncate or up to 2 mm long, spreading. Seed 6.5 long, 3 mm broad, black, shining; aril black.
More
Closely leafy, aromatic shrublet sometimes to 1 m, with many stems from a woody caudex. Leaves opposite and decussate, sessile, spreading-erect, loosely imbricate, linear to lanceolate, recurving towards tip. Flowers paired and aggregated in small, flat-topped corymbs, white.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

Uses medicinal
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

Diosma oppositifolia world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:772520-1
WFO ID wfo-0000648342
COL ID 36DLT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Diosma oppositifolia Diosma scabra Diosma succulenta Diosma acicularis Diosma crassifolia Diosma decussata Diosma juniperifolia Diosma rigidula Melia succulenta Diosma succulenta var. bergiana