Nertera granadensis Druce

Species

Angiosperms > Gentianales > Rubiaceae > Nertera

Characteristics

Herbs, epiphytic or creeping, occasionally to 1.3 m tall, the branches short, glabrous or webby pubescent (mouldy?), often drying deep purplish red. Leaves ovate rotund, to 1.3 cm long, to 1.25 cm wide, slightly inequilateral, widely deltoid at the apex, ultimately retuse or minutely apiculate, basally subcordate to trun-cate, the base deltoid as it passes into the petiole, the costa plane or evanescent above (then often pubescent), plane to prominulous beneath, the lateral veins 2-5, often evanescent, the 2 basal veins together with the costa appearing flabellate, widely arcuate, carnose but drying thin, glabrous or pubescent, the hairs thick, falcate, appressed, often only the hair bases persistent and the surface then silvery lepidote, the margin delicately marginate; petioles 0.9 cm long, to 0.3 cm wide, glabrous, often grooved above; stipules interpetiolar, triangular, to 1 mm long, to 1 mm wide. Flowers solitary; hypanthium oblong, ca. 1 mm long, with a few scattered hairs, the calycine cup short and without lobes; corolla yellow green or pale yellow, the tube widely funnel shaped, inflated, ca. 0.8 mm long, glabrous, petaloid; stamens 4, the anthers rotund, ca. 0.3 mm in diam., the filaments ca. 1.5 mm long, inserted at the base of the corolla tube; stigmas 2, reflexed, subulate, ca. 1 mm long, longer than the style, the ovule 1, large, pendent. Fruits sessile, scarlet at maturity, oblong, to 2.5 mm long, to 2 mm wide, glabrous, delicately reticulate and with a few delicate longitudinal lines, the raphides abundant.
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Creeping herbs; stems angled, glabrescent. Petiole slender, 2-4 mm, glabrescent; leaf blade drying papery and often pale abaxially, ovate or ovate-triangular, 0.3-1 × 0.2-0.8 cm, glabrescent, generally smooth abaxially, base obtuse to shallowly cordate, apex acute to obtuse; secondary veins 2 or 3 pairs; stipules ovate-triangular, 0.5-1 mm, glabrescent, apex acute and often glandular. Flowers sessile or subsessile. Calyx glabrous; ovary portion ellipsoid, ca. 1 mm; limb reduced. Corolla white to pale green, glabrous; tube 0.5-1 mm; lobes ca. 1 mm. Drupes red, subglobose, 3-5 mm in diam.; pyrenes 2.
A herb which forms mats. It keeps growing from year to year. It lies along the ground and spreads 10-30 cm wide. The stems are slender and much branched. They are about 10 cm long. They form roots at the nodes. The leaves are 0.3-0.5 cm long by 0.3-0.45 cm wide. They are oval or rounded. The stalks are 0.4 cm long. The flowers are 0.2 cm long and like tubes. They have spreading lobes. They are yellowish-green. They occur singly at the ends of branches. The fruit are small and yellow or orange-red.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.3
Mature height (meter) 0.1 - 0.25
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

It grows in subantarctic to tropical places It grows in wet, sheltered sites. It grows on mossy rocks and cliff faces. It suits cool shaded spots. It can tolerate frosts. It needs constant moisture. In Argentina it grows between 500-3,500 m above sea level. Tasmania Herbarium.
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Coastal to sub-alpine damp forest, shrubland, grassland, boggy ground and herbfield, North, South, Stewart and Chatham Islands.
Light 4-7
Soil humidity 3-7
Soil texture 3-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 9-10

Usage

Uses animal food environmental use invertebrate food medicinal social use
Edible fruits seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

The plant can be grown by division. It can also be grown from seed or cuttings.
Mode seedlings
Germination duration (days) 30 - 90
Germination temperacture (C°) 18 - 21
Germination luminosity dark
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Nertera granadensis habit picture by Fabien Anthelme (cc-by-sa)
Nertera granadensis habit picture by Daniel Barthelemy (cc-by-nc)
Nertera granadensis habit picture by Fabien Anthelme (cc-by-sa)

Leaf

Nertera granadensis leaf picture by Fabien Anthelme (cc-by-sa)
Nertera granadensis leaf picture by Fabien Anthelme (cc-by-sa)
Nertera granadensis leaf picture by Fabien Anthelme (cc-by-sa)

Fruit

Nertera granadensis fruit picture by Fabien Anthelme (cc-by-sa)
Nertera granadensis fruit picture by Daniel Barthelemy (cc-by-nc)
Nertera granadensis fruit picture by Daniel Barthelemy (cc-by-nc)

Distribution

Nertera granadensis world distribution map, present in Bolivia (Plurinational State of), China, Costa Rica, Cuba, Dominica, Ecuador, Falkland Islands (Malvinas), Guatemala, Honduras, Haiti, Jamaica, Japan, Moldova (Republic of), Madagascar, Nicaragua, Panama, Peru, Philippines, Taiwan, Province of China, United States of America, Venezuela (Bolivarian Republic of), Vanuatu, and Samoa

Identifiers

LSID urn:lsid:ipni.org:names:757486-1
WFO ID wfo-0000251613
COL ID 476DZ
BDTFX ID -
INPN ID 453499
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Nertera granadensis Nertera repens Coprosma granadensis Gomozia granadensis Nertera depressa var. papuana Nertera granadensis var. insularis

Lower taxons

Nertera granadensis var. tetrasperma Nertera granadensis var. granadensis