Ixia altissima Goldblatt & J.C.Manning

Species

Angiosperms > Asparagales > Iridaceae > Ixia

Characteristics

Plants 0.9-1.2 m high, stem surrounded at base by membranous cataphylls, simple or with 1-2 branches subtended by translucent, attenuate bracts and prophylls up to 8 mm long. Corm 15-18 mm diam., mature tunics not known. Leaves 4, lower 3 ± basal, reaching to ± middle of stem, blades linear to linear-sword-shaped, (3-)4-10 mm wide, firm-textured, margins and midrib and often a pair of secondary veins thickened and hyaline (at least when dry), uppermost leaf largely sheathing. Spike erect, elongate, weakly flexuose, 14-20-flowered, lateral spikes 6-14-flowered; bracts dry, membranous, translucent, flecked with brown in upper half, outer ± 7 mm long, usually with 3 prominent veins and 3-toothed, inner bracts ± as long as outer or slightly shorter, 2-veined and 2-toothed. Flowers rotate, mauve-pink; perianth tube narrowly funnel-shaped, ± 4 mm long, filiform and clasping style below, flared in distal ± 2 mm; tepals spreading, oblong-ovate, 12-13 x ± 4 mm. Stamens symmetrically disposed, erect; filaments filiform, inserted just above narrow part of tube, ± 4 mm long, ± white; anthers oblong, ± 3 mm long, erect, dehiscing fully by longitudinal slits, yellow. Style dividing opposite middle of anthers, branches ± 2 mm long, falcate, pale yellow, tubular, stigmatic apically, arching outward between or shortly overtopping anthers.
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Plants 0.9-1.2 m high. Corm 15-18 mm diam.; mature tunics not known. Stem simple or with 1 or 2 branches subtended by translucent, attenuate bracts and prophylls up to 8 mm long. Leaves 4, lower 3 ± basal, reaching to ± middle of stem, blades linear to linear-sword-shaped, (3-)4-10 mm wide, firm-textured, margins and main vein and often a pair of secondary veins thickened and hyaline (at least when dry), uppermost leaf largely sheathing. Main spike slender, weakly flexuose, 14-to 20-flowered, lateral spikes 6-to 14-flowered; bracts dry, membranous, translucent, flecked with brown in upper half, ± 7 mm long, outer usually with 3 prominent veins and 3-toothed, inner bracts sometimes slightly shorter than outer, 2-veined and 2-toothed. Flowers rotate, mauve-pink; perianth tube narrowly funnel-shaped, ± 4 mm long, filiform and clasping style below, flared in distal ± 2 mm; tepals spreading, oblong-ovate, 12-13 x ± 4 mm. Filaments inserted at base of wide part of tube, ± 4 mm long, ± white; anthers oblong, ± 3 mm long, dehiscing fully, yellow. Style dividing opposite middle 1/3 of anthers, branches ± 2 mm long, falcate, tubular, arching outward between or shortly overtopping anthers.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.9 - 1.2
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-6
Soil texture 5-6
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 altissima world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77126268-1
WFO ID wfo-0001335355
COL ID 6NBTL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ixia altissima