Romulea tabularis Eckl. ex Bég.

Species

Angiosperms > Asparagales > Iridaceae > Romulea

Characteristics

Plants 50-150(-200) mm high. Corm globose, obliquely flattened toward base with crescent-shaped basal ridge ± as wide as corm, 5-10 mm diam., tunics splitting into fine parallel fibrils along ridge. Stem usually aerial, exserted up to 150 mm. Leaves 2 to 5, lowermost 1(2) basal when stem exserted, terete or compressed-cylindric and narrowly 4-grooved, 1-2 mm diam., cauline leaves clustered at stem apex. Peduncles up to 10, up to 80 mm long, semiterete, strongly curved initially in fruit but later suberect; outer bracts green with narrow membranous margins, 8-16(-20) mm long, lightly striate (4 or 5 veins/mm), inner bracts either green or submembranous with central part flushed purplish, with broad membranous margins speckled with brown along margins and sometimes in central area. Flowers usually pale or darker lavender-blue or white to cream-coloured in distal half, cup and lower half of segments orange or golden-yellow, often with pale transverse band in throat, outer tepals irregularly streaked or entirely purple or green on reverse, sometimes lightly scented; perianth tube funnel-shaped, 3-5 mm long; tepals elliptic, 10-28 x 3-7 mm. Filaments 3-6 mm long, pilose basally, yellow; anthers 3-6 mm long. Style dividing slightly below to beyond anther tips, branches 1-2 mm long, divided halfway. Capsules ellipsoid or cylindric, ± 10 mm long.
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Plants 100-350(-600) mm long. Corm with a crescent-shaped basal ridge. Stem 10-100(-300) mm long. Basal leaves 1.2 or more, filiform, or compressed cylindrical, 100-350(-600) x 1-2 mm, grooves narrow. Inner bract greenish or reddish, with brown-spotted or brown-edged membranous margins. Flowers 15-35 mm long; lavender-blue or sometimes white or bluish-mauve, in the lower half orange or golden yellow, often with a pale transverse band in the throat, outer segments on the backs irregularly marked in green and brown. Perianth tube 3-5 mm long; segments narrowly elliptical, 10-28 x 3-7 mm, obtuse or subobtuse. Filaments 3-6 mm; anthers 3-6 mm, yellow. Style 8-13 mm; stigmas at or above the anther tips. Capsules shortly cylindrical, on curved peduncles which straighten later.
Cormous geophyte, up to 100 mm tall, corm with a crescent-shaped basal ridge, stem branching above the ground. Basal leaves 1 or 2, narrowly 4-grooved. Flowers white (or mostly pale blue elsewhere), with a yellow cup, sometimes fragrant; outer bract green, inner bract hyaline with a narrow green or red keel.
Cormous geophyte to 10 cm, corm with an oblique basal ridge, basal ridge fibrous, stem branching above ground. Basal leaves 1 or 2. Flowers blue to white with yellow cup, often blotched on reverse, sometimes fragrant, inner bracts membranous.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.08 - 0.13
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 5-7
Soil texture 3-6
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 -

Images

Romulea tabularis unspecified picture

Distribution

Romulea tabularis world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:440859-1
WFO ID wfo-0000785912
COL ID 4TB2P
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Romulea tabularis Romulea versicolor Romulea duthieae Romulea rosea var. parviflora