Romulea austinii E.Phillips

Species

Angiosperms > Asparagales > Iridaceae > Romulea

Characteristics

Plants 30-100 mm high. Corm hemispherical, 5-15 mm diam., obliquely flattened on one side and convex on the other, with wide, crescent-shaped basal ridge as wide as corm, tunics woody, split into parallel fibrils along ridge. Stem subterranean. Leaves 2 to 4(6), all basal, subterete, bifacial in lower ± half with adaxial groove open, narrowly 4-grooved distally, 0.5-1.0 mm diam., sometimes sparsely ciliolate along rib margins. Peduncles 1 to 3, up to 50 mm long, subterete, curved or slightly flexuose in fruit; outer bracts submembranous or greenish in lower half, green and subherbaceous distally, with narrow membranous margins, 10-22 mm long, widely striate (3 or 4 veins/mm), inner bracts submembranous in lower half and subherbaceous distally, with wide, brown-stippled membranous margins. Flowers canary-yellow with golden-yellow cup, usually with spade-shaped brownish markings in throat, outer tepals dark veined or feathered on reverse; perianth tube funnel-shaped, 4-5 mm long; tepals oblanceolate to elliptic, 14-25 x 5-9 mm. Filaments 5-7 mm long, pilose basally, yellow; anthers 3-6 mm long, yellow. Style dividing shortly below or beyond anther apices, branches 2 mm long, divided halfway. Capsules ellipsoid, 6-10 mm long.
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Plants 60-120 mm long. Corm obliquely flattened in the lower half with a wide crescent-shaped basal ridge. Leaves filiform, suberect, bent or slightly flexuose, 40-200 x 0.5-1 mm, sometimes ciliolate on the rib margins, grooves narrow. Bracts green in the upper half, submembranous in the lower, inner with wide brown-edged or speckled membranous margins. Flowers 20-33 mm long, yellow, usually with a spade-shaped brownish black blotch on each perianth segment, outer segments dark-veined or greenish brown on the backs. Perianth tube 4-5 mm long; segments 14-25 x 5-9 mm. Filaments 5-7 mm, slightly widened at the bases; anthers 3-6 mm long. Style 9-14 mm; stigmas more or less at the anther tips. Capsules ellipsoidal, on curved, slightly flexuose peduncles.
Cormous geophyte, 60-100 mm tall, corm with a wide, fan-like oblique basal ridge. Basal leaves several, channelled to apex. Flowers yellow, usually with brown markings, honey-scented; outer bract with narrow hyaline margins, inner bract with wide, brown-flecked hyaline margins; fruiting peduncles curved.
Cormous geophyte to 20 cm, corm with a broad, fan-like oblique base, basal ridge fibrous. Basal leaves several, channelled to apex. Flowers yellow, usually with brown markings.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.06 - 0.1
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 1-2
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 austinii world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:440676-1
WFO ID wfo-0000785433
COL ID 78WLF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Romulea austinii