Rhigozum trichotomum Burch.

Species

Angiosperms > Lamiales > Bignoniaceae > Rhigozum

Characteristics

Erect shrub 1-2(4) m tall with ternate spiniform branches. Young branchlets greyish, at first with dense pubescence, with age glabrescent to glabrous. Leaves 7-20 x 2-4 mm, simple, solitary or clustered up to 10 on each cushion, spatulate to spathulate-oblong, rounded or slightly emarginate, rarely acute at the apex, tapering at the base, gland dotted, margins undulate, glabrous; sessile or shortly petiolate. Flowers usually terminal, rarely on lateral cushions, solitary or fascicled; pedicels 1-3 mm long. Calyx 5-8 mm long, irregularly 5-lobed; lobes more or less cuspidate, sometimes with prominent ribs, hairy to subglabrous. Corolla white, whitish-pink or pink; tube c. 17 mm long, funnel-shaped, lower part cylindric and enclosed in the calyx, glabrous outside, hairy inside below the insertion of the stamens; lobes c. 10 mm in diam., subcircular crenulate, spreading. Stamens adnate to the corolla tube, and up to 5-8 mm from the base; filament 8-10 mm long; anthers c. 4 mm long, apiculate. Ovary 2-4 mm long. Capsule 6-9 x 1-1.4 cm, long, beaked. Seeds not seen.
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Calyx 5–8 mm. long, irregularly 5-lobed; lobes more or less cuspidate, sometimes with prominent ribs, hairy to subglabrous, Corolla white, whitish-pink or pink; tube c. 17 mm. long, funnel-shaped, lower part cylindric and enclosed in the calyx, glabrous outside, hairy inside below the insertion of the stamens; lobes c. 10 mm., in diam., subcircular crenulate, spreading.
Shrub, 1-2 m high. Stems trichotomously branched, branches rigid, spine-tipped. Leaves simple, solitary or fascicled; blade spathulate, apex rounded, margin undulate, gland dotted; sessile or shortly petiolate. Flowers: usually terminal; corolla white or whitish pink to pink; Sep.-Mar.
Small, woody, grey-green shrub, up to 1.5 m tall, sprouting from creeping underground stems. Leaves scattered in small dense tufts on 3-branched stems with pointed tips. Flowers trumpet-shaped, 20-40 mm long, white or rarely pale pink. Fruit narrow and flattened, seeds papery winged.
Leaves 7–20 × 2–4 mm., simple, solitary or clustered up to 10 on each cushion, spatulate to spathulate-oblong, rounded or slightly emarginate, rarely acute at the apex, tapering at the base, gland dotted, margins undulate, glabrous; sessile or shortly petiolate.
Stamens adnate to the corolla tube, and up to 5–8 mm. from the base; filament 8–10 mm. long; anthers c. 4 mm. long, apiculate.
Flowers usually terminal, rarely on lateral cushions, solitary or fascicled; pedicels 1–3 mm. long.
Young branchlets greyish, at first with dense pubescence, with age glabrescent to glabrous.
Erect shrub 1–2(4) m. tall with ternate spiniform branches.
Capsule 6–9 × 1–1.4 cm., long, beaked.
Ovary 2–4 mm. long.
Seeds not seen.
Life form
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0 - 2.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Arid areas in grasslands, along riverbeds and pan fringes.
Light 4-9
Soil humidity 2-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-9

Usage

Uses animal food environmental use fodder material medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) 15 - 35
Size -
Vigor -
Productivity -

Images

Rhigozum trichotomum unspecified picture

Distribution

Rhigozum trichotomum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:110547-1
WFO ID wfo-0000779501
COL ID 99SZL
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Rhigozum trichotomum