Rytigynia orbicularis (K.Schum.) Robyns

Species

Angiosperms > Gentianales > Rubiaceae > Rytigynia

Characteristics

Leaves sometimes folded and curved downward, glaucous or blue-green, 1.2–5 × 0.8–4 cm, ovate to round, or elliptic, mostly shortly acutely acuminate at the apex but sometimes rounded or even slightly emarginate, rounded to usually distinctly cordate at the base, glaucous; petiole 1–5 mm long; stipular sheath c. 1 mm long, with a subulate thickish appendage 1–2.5 mm long.
More
Corolla apiculate in bud; greenish-white or yellowish, the lobes often a more distinct yellow; tube 4–6 mm long, funnel-shaped, with a ring of deflexed hairs below the throat inside; lobes triangular-lanceolate, 4–5 × 2 mm at the base, including the very short appendages.
Glabrous subshrub or shrub 0.6–1.2 m tall, with rather slender somewhat glaucous much branched stems with reddish-brown eventually somewhat flaking bark.
Flowers solitary; peduncle 5–10 mm long; pedicels 5–8 mm long; bracts 2, minute, scarcely 1 mm long, lanceolate.
Pollen presenter 1.5 mm long, ellipsoid, later subcoroniform, strongly 3-lobed at the apex.
Calyx tube 1–2 mm long, obconic, the limb 0.5–0.75 mm long undulate or shallowly toothed.
Fruit up to 8 × 10 mm with 1–3 pyrenes; pyrenes c. 8 mm long, deeply lobed in dry state.
Stigma exserted about 1 mm.
Ovary 3-locular.
Life form -
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6 - 1.2
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 -
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

Rytigynia orbicularis world distribution map, present in Angola and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:765763-1
WFO ID wfo-0000299204
COL ID 6WYZF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Plectronia orbicularis Rytigynia orbicularis Canthium orbiculare