Ixia trinervata (Baker) G.J.Lewis

Species

Angiosperms > Asparagales > Iridaceae > Ixia

Characteristics

Plants 250-450 mm high, stem usually unbranched or with a single short branch, with membranous cataphylls enclosing base. Corm 9-18 mm diam., tunics of firm, medium-textured, netted fibres. Leaves 2, lower 1 ± basal, upper 1 sheathing stem in lower 1/2, blades lanceolate, 4-10 mm wide, conspicuously 3-veined, main vein moderately thickened, secondary veins slightly less so, margins not or barely thickened. Spike flexuose, mostly 7-122-flowered; bracts membranous, translucent, sometimes turning rusty brown in upper 1/3, outer 5-6 mm long, with prominent central vein and up to six secondary veins, 1-toothed or ± fringed, inner ± as long as outer, 2-veined and 2-toothed. Flowers rotate, deep rose pink, unscented; perianth tube filiform, 4-5 mm long, clasping style; tepals spreading, ovate-elliptic, obtuse to retuse, 12-15 x 6-8 mm. Stamens symmetrically arranged, erect; filaments inserted at mouth of tube, filiform, 2-4 mm long, ± white; anthers erect, suborbicular, ± 2 mm long, yellow, thecae acute and recurved at base, dehiscing by narrow, longitudinal slits almost to apex. Style dividing at base of filaments, branches falcate, 2.5-3.0 mm long, tubular-filiform, stigmatic apically, pale pink.
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Plants 250-450 mm high. Corm 9-18 mm diam., tunics of firm, medium-textured, netted fibres. Stem usually unbranched or with a single short branch. Leaves 2, lower 1 ± basal, lanceolate, (4-)6-10 mm wide, conspicuously 3-veined, main vein moderately thickened, secondary veins slightly less so, margins not or barely thickened, upper leaf sheathing stem in lower 1/2. Spike flexuose, 5-to 12-flowered; bracts membranous, translucent, sometimes turning rusty brown in upper 1/3, outer 5-6 mm long, with prominent main vein and up to 6 secondary veins, 1-toothed or ± fringed, inner ± as long as outer, 2-veined and 2-toothed. Flowers rotate, deep rose-pink, unscented; perianth tube filiform, 4-5 mm long, clasping style; tepals spreading, ovate-elliptic, obtuse to retuse, 12-15 x 6-8 mm. Filaments inserted at mouth of tube, filiform, 2-4 mm long, ± white; anthers erect, suborbicular, ± 2 mm long, yellow, thecae acute, recurved at base, dehiscing almost to apex. Style dividing at base of filaments, branches falcate, 2.5-3.0 mm long, tubular-filiform, pale pink.
Cormous geophyte, 20-40 cm. Leaves 2, lowermost lanceolate, with 3 prominent veins, upper leaf entirely sheathing. Flowers pink, pale in throat, tube filiform, anthers oblong, style branches recurved.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25 - 0.45
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 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

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

Ixia trinervata world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:439624-1
WFO ID wfo-0000784432
COL ID 3QFSY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ixia trinervata Tritonia trinervata