Geissorhiza exscapa (Thunb.) Goldblatt

Species

Angiosperms > Asparagales > Iridaceae > Geissorhiza

Characteristics

Plants 180-320 mm high. Corm ovoid, 10-15 mm diam.; tunics brown, concentric, fragmenting irregularly, segments drawn into short cusps above. Stem sometimes very short, then sheathed almost entirely by leaves, flexed above sheath of second leaf and near base of spike, usually unbranched. Leaves 3, linear or appearing nearly terete, sticky on sheaths and blades, often with adhering sand, margins expanded into wings held at right angles to blade and curving inward (appearing nearly terete with 2 longitudinal grooves), midrib not or barely raised, lowermost leaf basal, largest, reaching to ± base of spike, upper leaves shorter, uppermost often largely sheathing, inserted in middle of stem. Spike inclined to horizontal, (1-)3-to 9-flowered, flexuose; outer bracts (30-)45-65 mm long, green, inner membranous, up to 20 mm long. Flowers zygomorphic, stamens and style declinate, tepals cream-to ivory-coloured or pink with darker veins, reddish outside, fading deep pink to ± red; perianth tube 40-80 mm long, usually well exserted from bracts, occasionally reaching only to apex of bracts, curved near throat; tepals narrowly obovate, 26-35 x 4.5-6.0 mm wide, outer wider and shorter than inner. Filaments unilateral, declinate, equal, held above lower tepal; anthers ± horizontal, 6-7 mm long, brown. Style arching below filaments, dividing near apex of anthers, branches ± 3 mm long. Capsules oblong-ellipsoid, up to 20 mm long.
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Cormous geophyte, 180-300 mm tall, tunics woody, concentric, stem shorter than the leaves. Leaves linear, H-shaped in section, viscid on the margins. Flowers in a several-flowered spike, cream, fading pink, perianth tube elongate-cylindrical, stamens and style unilateral.
Cormous geophyte, 18-30 cm, tunics woody, concentric, stem shorter than leaves. Leaves linear, H-shaped in section, viscid on margins. Flowers creamy beige, fading pink, darker on veins, tube elongate, stamens and style unilateral.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.18 - 0.31
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 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

Geissorhiza exscapa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:915031-1
WFO ID wfo-0000788950
COL ID 3FGXR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Acidanthera tubulosa Geissorhiza exscapa Sphaerospora exscapa Engysiphon exscapus Engysiphon longitubus Gladiolus exscapus Sphaerospora flexuosa Acidanthera exscapa Acidanthera flexuosa Freesea costata Gladiolus flexuosus Gladiolus longiflorus Gladiolus thunbergii