Kingdom:
Phylum:
Angiosperms
Order:
Gentianales
Family:
Species:
nigrescens
ID:
255796

Status:
valid

Authors:
Urb. & Ekman

Source:
wcs

Year:
1932

Citation Micro:
Ark. Bot. 24A(4): 36 (1932)

WFO Identifier:
wfo-0000255128

Common Names

  • Blackish Oldenlandia
  • Oldenlandia nigrescens
  • Nigrescens Oldenlandia

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Synonyms

  • Hedyotis eckmanii Alain [valid]
  • Hedyotis nigrescens (Urb. & Ekman) Alain [illegitimate]

Description

Oldenlandia nigrescens (also called Black-eyed Susan, among many other common names) is an annual herbaceous plant native to tropical Africa. It has small, white flowers with a black center and grows in moist, open areas such as meadows and grasslands.

Uses & Benefits

Oldenlandia nigrescens is used as an ornamental plant in gardens and as a ground cover. It is also used in traditional medicine to treat various ailments such as fever, inflammation, and skin diseases.

Flower, Seeds and Seedlings

Oldenlandia nigrescens has small, white, star-shaped flowers with five petals and yellow centers. The seeds are small, black and round. The seedlings are small, with thin stems and narrow, pointed leaves.

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Cultivation and Propagation

Oldenlandia nigrescens can be propagated by seed or cuttings. When sowing the seeds, it is best to use a seed starting mix and keep the soil moist. Cuttings should be taken from healthy plants and rooted in a potting mix. Keep the soil moist and provide bright, indirect light.

Where to Find Oldenlandia nigrescens

Oldenlandia nigrescens is native to India, Sri Lanka, and Myanmar.

Oldenlandia nigrescens FAQ

What is the scientific name of Oldenlandia nigrescens?

Oldenlandia nigrescens

What are the common names of Oldenlandia nigrescens?

Blackish Oldenlandia

What is the habitat of Oldenlandia nigrescens?

It is found in tropical and subtropical regions of the world, including India, Southeast Asia, and Africa.

Species in the Oldenlandia genus

Oldenlandia ascedens, Oldenlandia acicularis, Oldenlandia adscensionis, Oldenlandia aegialodes, Oldenlandia aemulans, Oldenlandia affinis, Oldenlandia apoensis, Oldenlandia arenarioides, Oldenlandia aretioides, Oldenlandia aridosa, Oldenlandia balfourii, Oldenlandia banksii, Oldenlandia bicornuta, Oldenlandia boscii, Oldenlandia brachypetala, Oldenlandia brachyphylla, Oldenlandia breviflora, Oldenlandia cana, Oldenlandia capensis, Oldenlandia capillipes, Oldenlandia capituligera, Oldenlandia chevalieri, Oldenlandia chiovendae, Oldenlandia ciliata, Oldenlandia ciliolata, Oldenlandia clausa, Oldenlandia comata, Oldenlandia contracta, Oldenlandia corymbosa, Oldenlandia cryptocarpa, Oldenlandia cyperoides, Oldenlandia debilis, Oldenlandia decipiens, Oldenlandia densiflora, Oldenlandia dinteri, Oldenlandia drymarioides, Oldenlandia duemmeri, Oldenlandia dusenii, Oldenlandia echinulosa, Oldenlandia erythraeoides, Oldenlandia fastigiata, Oldenlandia filicaulis, Oldenlandia filifolia, Oldenlandia flosculosa, Oldenlandia forcipitistipula, Oldenlandia friesiorum, Oldenlandia geophila, Oldenlandia grandis, Oldenlandia gregaria, Oldenlandia herbacea,

Species in the Rubiaceae family

Acranthera abbreviata, Acranthera anamallica, Acranthera athroophlebia, Acranthera atropella, Acranthera aurantiaca, Acranthera axilliflora, Acranthera bullata, Acranthera capitata, Acranthera ceylanica, Acranthera didymocarpa, Acranthera endertii, Acranthera frutescens, Acranthera grandiflora, Acranthera hallieri, Acranthera hirtostipula, Acranthera involucrata, Acranthera johannis-winkleri, Acranthera lanceolata, Acranthera longipes, Acranthera longipetiolata, Acranthera maculata, Acranthera megaphylla, Acranthera monantha, Acranthera nieuwenhuisii, Acranthera ophiorhizoides, Acranthera parviflora, Acranthera philippensis, Acranthera ruttenii, Acranthera salmonea, Acranthera siamensis, Acranthera siliquosa, Acranthera simalurensis, Acranthera sinensis, Acranthera strigosa, Acranthera tomentosa, Acranthera variegata, Acranthera velutinervia, Acranthera yatesii, Acranthera philippinensis, Acranthera burmanica, Acranthera virescens, Acranthera hoangii, Acranthera collina, Acrobotrys discolor, Acrosynanthus jamaicensis, Acrosynanthus latifolius, Acrosynanthus minor, Acrosynanthus ovatus, Acrosynanthus parvifolius, Acrosynanthus revolutus,

References

The Plant List v1.1 record kew-138607: Based on the initial data import
Ignatz Urban (1848-1931): Based on occurrence of standard abbreviation 'Urb.' in the authors string.
Erik Leonard Ekman (1883-1931): Based on occurrence of standard abbreviation 'Ekman' in the authors string.