Ixia rigida Goldblatt & J.C.Manning

Species

Angiosperms > Asparagales > Iridaceae > Ixia

Characteristics

Plants (150-)300-600 mm high, stem usually with 2-3 ± erect branches held close to axis, sheathed at base by firm, chestnut brown cataphylls, combining with old corm tunics and leaf bases to form collar around base. Corm 12-18 mm diam., tunics of firm, relatively hard fibres. Leaves (3-)5-7, lower (2-)3-6 with expanded blades, upper 1 or 2 leaves sheathing lower 1/3 to middle of stem, blades sword-shaped to sub-linear, (3-)5-8 mm wide, main vein, margins, and often secondary vein pairs moderately thickened, hyaline when dry. Spike weakly flexuose, nodding in bud, mostly 8-15-flowered, lateral spikes with fewer flowers; bracts membranous, silver-translucent, ± 5.5-7.0 mm long, outer with prominent brown or purple central vein and few secondary veins not reaching upper margin, acute or with 2 obscure lateral lobes, inner 2-veined and acutely 2-toothed. Flowers rotate, pale pink, darker at tepal bases and ± white in throat, sweetly rose-scented; perianth tube funnel-shaped, ± 2.5 mm long, filiform and clasping style in basal 1.5 mm or less, widely flared distally for up to 1 mm; tepals spreading, ovate-oblong, ± 12(-15) x 5(-7) mm, obtuse. Stamens symmetrically arranged, erect; filaments inserted at mouth of narrow part of tube, filiform, ± 1.5(2.5) mm long, ± white; anthers oblong to linear, curved back at base, 3-4(5) mm long, slightly recurved basally, thecae subacute at base, dehiscing fully by longitudinal slits, yellow. Style dividing at base of filaments, branches ± straight, 2.0-3.0(3.5) mm long, ± filiform-tubular, stigmatic apically, white.
More
Plants (150-)300-600 mm high. Corm 12-18 mm diam.; tunics of firm, relatively hard fibres. Stem usually with 2 or 3 ± erect branches held close to axis, sheathed at base by firm, chestnut-brown cataphylls, combining with old corm tunics and leaf bases to form collar around base. Leaves (3-)5 to 7, lower (2)3 to 6 with expanded blades, sword-shaped to ± linear, (3-)5-8 mm wide, main vein, margins, and often secondary vein pairs moderately thickened, hyaline when dry, upper 1 or 2 leaves sheathing lower 1/3 to middle of stem. Main spike weakly flexuose, nodding in bud, mostly 8-to 15-flowered, lateral spikes with fewer flowers; bracts membranous, silver-translucent, ± 5.5-7.0 mm long, outer with prominent brown or purple central vein and few secondary veins not reaching upper margin, acute or with 2 obscure lateral lobes, inner 2-veined and acutely 2-toothed. Flowers rotate, pale pink, darker at tepal bases and ± white in throat, sweetly rose-scented; perianth tube funnel-shaped, ± 2.5-3.0 mm long, filiform and clasping style in basal 1.5 mm or less, widely flared distally for up to 1 mm; tepals spreading, ovate-oblong, ± 12(-15) x 5(-7) mm, obtuse. Filaments ± 1.5(2.5) mm long, ± white; anthers oblong to linear, 3-4(5) mm long, slightly recurved basally, thecae subacute at base, dehiscing fully, yellow. Style dividing at base of filaments, branches ± straight, 2.0-3.0(3.5) mm long, ± filiform-tubular.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.6
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 1-8
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 rigida world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77126269-1
WFO ID wfo-0001335356
COL ID 3QFRC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ixia rigida