Flowering plants
1,754 species| Photo | English | සිංහල | தமிழ் | Scientific name | IUCN | Endemic |
|---|---|---|---|---|---|---|
| Anaphalis subdecurrens | — | — | Anaphalis subdecurrens | — | ||
| Andrographis alata | — | — | Andrographis alata | — | ||
| Angel’s Trumpet | — | — | Brugmansia arborea | EW | — | |
| Aniseia martinicensis | — | — | Aniseia martinicensis | LC | — | |
| Anisophyllea cinnamomoides | — | — | Anisophyllea cinnamomoides | VU | Endemic | |
| Anodendron parviflorum | — | — | Anodendron parviflorum | — | ||
| Anthoshorea stipularis | — | — | Anthoshorea stipularis | VU | Endemic | |
| Antidesma alexiteria | — | — | Antidesma alexiteria | — | ||
| Antidesma ghaesembilla | — | — | Antidesma ghaesembilla | LC | — | |
| Antidesma pyrifolium | — | — | Antidesma pyrifolium | VU | Endemic | |
| Antique Spurge | — | சதுரக்கள்ளி | Euphorbia antiquorum | LC | — | |
| Aphyllodium biarticulatum | — | — | Aphyllodium biarticulatum | — | ||
| Aporosa lanceolata | — | — | Aporosa lanceolata | VU | Endemic | |
| Apple Mangrove | — | கிண்ணை | Sonneratia caseolaris | LC | — | |
| Apple Mangrove | — | — | Sonneratia alba | LC | — | |
| Arabian Jasmine | — | இருள்நாறி | Jasminum sambac | — | ||
| Arabian Jointed Glasswort | — | — | Suaeda vermiculata | — | ||
| Aralia leschenaultii | — | — | Aralia leschenaultii | LC | — | |
| Archidendron bigeminum | — | — | Archidendron bigeminum | VU | — | |
| Arctic Snow | ඉද්ද | — | Wrightia antidysenterica | — | ||
| Ardisia gardneri | — | — | Ardisia gardneri | Endemic | ||
| Ardisia lankaensis | — | — | Ardisia lankaensis | — | ||
| Ardisia missionis | — | — | Ardisia missionis | — | ||
| Ardisia solanacea | — | கோழுருச்சி | Ardisia solanacea | LC | — | |
| Ardisia zeylanica | — | — | Ardisia zeylanica | — | ||
| Argyreia thwaitesii | — | — | Argyreia thwaitesii | — | ||
| Aristolochia ringens | — | — | Aristolochia ringens | — | ||
| Aroma | — | — | Dichrostachys cinerea | LC | — | |
| Arrow-Leafed Morning Glory | — | — | Ipomoea sagittifolia | — | ||
| Arrowhead Rattlebox | — | — | Crotalaria sagittalis | — | ||
| Artabotrys zeylanicus | — | — | Artabotrys zeylanicus | — | ||
| Artanema longifolium | — | — | Artanema longifolium | — | ||
| Artillery Plant | — | — | Pilea microphylla | — | ||
| Artocarpus nobilis | වල් දෙල් | — | Artocarpus nobilis | VU | — | |
| Ashok | — | — | Saraca indica | LC | — | |
| Asian Bladderwort | — | — | Utricularia uliginosa | LC | — | |
| Asian Bushbeech | — | குமிழம் | Gmelina asiatica | LC | — | |
| Asian Spiderflower | — | நாய்வேளை | Cleome viscosa | — | ||
| Asian Ticktrefoil | — | — | Grona heterocarpos | — | ||
| Asiatic Jasmine | — | — | Trachelospermum asiaticum | — | ||
| Asiatic Tarenna | — | — | Tarenna asiatica | LC | — | |
| Asthma Plant | — | அம்மான் பச்சரிசி | Euphorbia hirta | — | ||
| Asystasia chelonoides | — | — | Asystasia chelonoides | — | ||
| Asystasia variabilis | — | — | Asystasia variabilis | — | ||
| Atalantia ceylanica | — | — | Atalantia ceylanica | — | ||
| Atalantia monophylla | — | குருந்து | Atalantia monophylla | LC | — | |
| Atriplex repens | — | — | Atriplex repens | — | ||
| Australian Cow-Plant | මස්බැද්ද | சிறுகுறிஞ்சா | Gymnema sylvestre | — |
