Rubiaceae
Flat-top mille graines
Oldenlandia corymbosa
- Family
- Rubiaceae
- Genus
- Oldenlandia
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Common names
By language (5)
- Burmese
- စူဠာနဖာပင်
- Chinese
- 伞房花耳草, 繖花龍吐珠, 伞房蛇舌草, 定經草, 水线草, 珠仔草
- English
- Flat-top mille graines
- Hausa
- Ratsa hanji
- shn
- တူၼ်ႈယႃႈၶႆႇႁဝ်, ယႃႈမုင်ႉၶဵတ်ႇ
Synonyms
- Gerontogea corymbosa (L.) Cham. & Schltdl.
- Hedyotis biflora var. corymbosa (L.) Kurz
- Hedyotis corymbosa (L.) Lam.
Flowers
- In flower
- all year (from 775 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual, Perennial
- In the US and Canada
- Hawaii: introduced, Lower 48 states: native, Pacific Basin: introduced, Puerto Rico: native, U.S. Virgin Islands: native
Photos

FlowerPhoto: Étienne Lacroix-Carignan, CC0, from iNaturalist 
FlowerPhoto: Douglas Goldman, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Morten Ross, CC BY 4.0, from iNaturalist 
FlowerPhoto: Richard Fuller, CC0, from iNaturalist 
Photo: Jason Hollinger, CC BY 2.0, from Wikimedia Commons 
Photo: Dan Johnson, CC BY 4.0, from iNaturalist 
Photo: Deepugn, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Ben Machado, CC BY 4.0, from iNaturalist 
Photo: Dinesh Valke from Thane, India, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Md. Ashshahril Labib, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Nativeplants garden, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Nativeplants garden, CC BY-SA 4.0, from Wikimedia Commons
More in Oldenlandia
- Oldenlandia umbellataRubiaceae
- Oldenlandia adscensionisRubiaceae
- Oldenlandia balfouriiRubiaceae
- Oldenlandia herbaceaRubiaceae
- Oldenlandia bicornutaRubiaceae
- Oldenlandia affinisRubiaceae
- Oldenlandia aretioidesRubiaceae
- Oldenlandia ocellataRubiaceae
- Oldenlandia pulvinataRubiaceae
- Salzmann's mille grainesOldenlandia salzmanniiRubiaceae
- Bosc's mille grainesOldenlandia bosciiRubiaceae
- Oldenlandia capensisRubiaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.