Romulea sabulosa Schltr. ex Bég.

Species

Angiosperms > Asparagales > Iridaceae > Romulea

Characteristics

Plants 80-150(-200) mm high. Corm globose, rounded, 8-15 mm diam., oblique, tunics woody, splitting into curved teeth below. Stem subterranean. Leaves 3 to 5, all basal, terete, narrowly 4-grooved, ± 1 mm diam. Peduncles up to 4, terete, suberect in fruit; outer bracts green with narrow, usually black-blotched or ± entirely black membranous margins, 20-35 mm long, closely and heavily ribbed (8-10 veins/mm) with stouter midvein, inner bracts 2-keeled with stouter veins on keels, with colourless or brown-flecked membranous margins. Flowers cup-shaped, shiny scarlet or currant-red with elongated black markings in throat on greyish green or lilac background above a yellow V-shaped blotch, outer tepals with yellow lines and black feathering on reverse; perianth tube cup-shaped, 2-4 mm long; tepals obovate-cuneate, 25-40(-55) x 12-20(-25) mm long. Filaments inserted at base of tube, 3-5 mm long, triangular, glabrous or sparsely pilose, whitish to dark; anthers 8-12 mm long, apically joined at first, yellow or purplish with yellow pollen. Style dividing opposite middle of anthers, branches forked, whitish. Capsules oblong, ± 15 mm long.
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Plants 120-400 mm long. Corm with curved basal teeth. Leaves filiform, 100-400 x c. 1 mm, grooves narrow. Bracts with narrow membranous margins which are usually colourless in the lower part and brown upwards. Flowers 30-50(-65) mm long, shiny scarlet or currant-red, each segment with a brownish black blotch on a greyish green, brownish or sometimes purplish blue background and below that a yellow V-shaped blotch, outer segments with 5-7 yellow veins and fine feathered veining on the backs. Perianth tube shallow, saucer-shaped, 2-4 mm deep, with a white, 6-pointed star-shaped blotch inside; segments subrhomboid-cuneate to obovate-cuneate, 25-40(-55) x 12-20(-25) mm. Filaments free, 3-5 mm, cream or dark; anthers 8-12 mm long, purplish or yellow. Style 7-12 mm; stigmas halfway up the anthers.
Cormous geophyte, 6-10 cm, corms rounded at base with coarse, bent teeth. Basal leaves several. Flowers dark red, rarely pink with black blotches at edge of creamy green cup, inner bracts 2-keeled.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.28
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Rooting depth (meter) -
Root diameter (meter) -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-6
Soil texture 2-5
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Germination treatment -
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Optimum temperature (C°) -
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Productivity -

Images

Romulea sabulosa unspecified picture

Distribution

Romulea sabulosa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:440831-1
WFO ID wfo-0000785976
COL ID 4TB23
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Romulea sabulosa