Romulea speciosa (Ker Gawl.) Baker

Romulée bulbocodium (fr), Iris de Provence (fr), Romulée à bulbe (fr), Romulée de Provence (fr)

Species

Angiosperms > Asparagales > Iridaceae > Romulea

Characteristics

Plants 50-150(-200) mm high. Corm subglobose, obliquely flattened toward base with crescent-shaped basal ridge, ± 15 mm diam.; tunics woody, split into fine parallel fibrils on basal ridge and forming fibrous neck. Stem subterranean or exserted up to 100(-120) mm. Leaves 2 or 3, lowermost 1 basal or evidently all basal when stemless, ± 1 mm diam., narrowly 4-grooved. Peduncles 1 to 3, hemiterete; outer bracts green with distinct, brownish or brown-flecked membranous margins, 15-30 mm long, closely ribbed (10-12 veins/mm), sometimes with stronger median vein, inner bracts with broad, dark brown-flecked membranous margins, central portion green with ± 20 closely spaced raised veins. Flowers carmine-red with pale yellow cup with black veins in cup, outer tepals feathered with yellow and purple on reverse; perianth tube funnel-shaped, 4-5 mm long, tepals oblanceolate, (20-)25-35 x (5-)7-10 mm. Filaments inserted near base of tube, 4.0-4.5 mm long, pilose at base, yellow to orange or darker toward base; anthers 8-10 mm long, pale yellow. Style dividing between middle and below anther apices, branches ± 2 mm long, divided for half their length.
More
Plants 150-300 mm long. Corm with a crescent-shaped basal ridge. Stem short, hidden or up to c. 150 mm long. Basal leaves 2 or more, terete, filiform, c. 150-300 x 1 mm, recurved, grooves narrow. Bracts green, outer 17-30 mm long, densely veined, often with a stronger median vein, margins narrow, brownish; inner with wide, brown or brown-streaked membranous margins and tip. Flowers 35-45 mm long, bright rosy-magenta, cup striped purple and yellow, outer segments on the backs yellow with 5 purple veins and feathered veining. Perianth tube 4-5 mm long; segments 25-35 x c. 10 mm subobtuse, minutely emarginate. Filaments 4 mm; anthers 8-10 mm long, pale yellow. Style 10-12 mm; stigmas below the anther tips.
Cormous geophyte, 150-300 mm tall, corm with a crescent-shaped basal ridge, stem branching below the ground. Leaves 2 or more, filiform, narrowly 4-grooved, recurved. Flowers magenta with yellow cup striped with purple; bracts green, outer with narrow and inner with broad brown-streaked hyaline margins.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.3
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

Romulea speciosa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:440843-1
WFO ID wfo-0000785980
COL ID 798P4
BDTFX ID 56337
INPN ID 117923
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Romulea oliveri Romulea speciosa Trichonema speciosum Ixia neglecta Romulea neglecta Ixia bulbocodium var. speciosa Ixia bulbocodium var. flore-speciosissima Bulbocodium speciosum