Duvalia angustiloba N.E.Br.

Species

Angiosperms > Gentianales > Apocynaceae > Duvalia

Characteristics

Dwarf succulent forming small mat 20-50 mm diam. Stems 8-30 mm long, 6-20 mm thick, decumbent, very short and ± spherical, green to purplish; tubercles 2-4 mm long, conical, fused near base into 4-5 obtuse obscure rows along stem with groove between them, abruptly narrowing into deltoid acute leaf-rudiment 1-2 mm long subtended by 2 stipular glands. Inflorescence arising in lower half of stem on short peduncle (<5 mm long), of 1-20 flowers opening in fairly rapid succession (often 2 or more open at once per inflorescence), bracts deltoid and 1 mm long; pedicel 10-40 mm long, 1 mm thick, usually ascending then descending and spreading on ground with upturned apex, holding flower facing upwards; sepals 2-3 mm long, 1 mm broad at base. Corolla 10-22 mm diam.; outside brownish green; inside red-to chocolate-brown (sometimes this colour speckled on cream to green); annulus 0.4-0.8 mm tall, 3.0-4.5 mm broad, pentagonal, somewhat constricted below, sometimes spotted, covered with fine papillae <0.5 mm long; tube <1 mm deep; lobes 4-9 mm long, 1.5-2.0 mm broad at base, somewhat longitudinally rugulose, tightly folded along midrib so narrowly linear for whole length and acute, margins with few papillae towards base, eciliate. Corona 2-3 mm diam., white to suffused with pink, often with several red-brown patches below inner lobes; outer lobes forming strongly pentagonal disc spreading at or just inside mouth of tube; inner lobes ±0.5 mm long, with obtuse spreading dorsal projection ±1 mm long.
More
Perennial, dwarf succulent. Stems decumbent, 8-30 x 6-20 mm, glabrous, grey-green to purple, obtusely 4-or 5-angled with rows of 2-4 mm long conical teeth tipped with an acute, 1-2 mm long leaf rudiment. Flowers 1-20, prostrate; pedicels 10-40 mm long. Sepals 2-3 mm long. Corolla 10-22 mm in diam., red to brown; annulus prominent, 3.0-4.5 mm in diam., ± pentagonal, constricted basally; lobes spreading 4-9 x 1.5-2.0 mm, completely replicate, glabrous or with basal papillae. Corona 2-3 mm in diam., white sometimes with pink or reddish markings; outer lobes spreading into a pentagonal disc; inner lobes 1.5 mm long, ± incumbent on anthers with apices extending into obtuse, ascending, dorsal lobules.
Life form perennial
Growth form -
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.0 - 0.0
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

Duvalia angustiloba world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:97249-1
WFO ID wfo-0000658112
COL ID 8SYTK
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Duvalia angustiloba