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Taxon:
Genus
Houstonia
L. (1753)
(plant)
Taxa
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Entity:
Rubiaceae (Family) - coffee family
..Acrobotrys (Genus)
..Acrosynanthus (Genus)
..Acunaeanthus (Genus)
..Adenorandia (Genus)
..Adinauclea (Genus)
..Afrocanthium (Genus)
..Agathisanthemum (Genus)
..Agouticarpa (Genus)
..Aidiopsis (Genus)
..Airosperma (Genus)
..Aleisanthia (Genus)
..Aleisanthiopsis (Genus)
..Alleizettella (Genus)
..Alseis (Genus)
..Amaioua (Genus)
..Amphiasma (Genus)
..Amphidasya (Genus)
..Anotis (Genus)
..Antherostele (Genus)
..Anthocephalus (Genus)
..Anthorrhiza (Genus)
..Anthospermopsis (Genus)
..Aoranthe (Genus)
..Aphaenandra (Genus)
..Aphanocarpus (Genus)
..Apomuria (Genus)
..Arcytophyllum (Genus)
..Argocoffeopsis (Genus)
..Asemnantha (Genus)
..Astiella (Genus)
..Atractocarpus (Genus)
..Atractogyne (Genus)
..Augusta (Genus)
..Badusa (Genus)
..Balmea (Genus)
..Bathysa (Genus)
..Batopedina (Genus)
..Bellizinca (Genus)
..Belonophora (Genus)
..Benkara (Genus)
..Benzonia (Genus)
..Berghesia (Genus)
..Bertiera (Genus)
..Blepharidium (Genus)
..Boholia (Genus)
..Borojoa (Genus)
..Bothriospora (Genus)
..Botryarrhena (Genus)
..Bouvardia (Genus)
..Brachytome (Genus)
..Bradea (Genus)
..Bremeria (Genus)
..Brenania (Genus)
..Breonadia (Genus)
..Breonia (Genus)
..Bruxanelia (Genus)
..Bullockia (Genus)
..Bungarimba (Genus)
..Burchellia (Genus)
..Burttdavya (Genus)
..Byrsophyllum (Genus)
..Calochone (Genus)
..Calycophyllum (Genus)
..Calycosia (Genus)
..Calycosiphonia (Genus)
..Canephora (Genus)
..†Canthidium (Genus)
..Capirona (Genus)
..Carpacoce (Genus)
..Carphalea (Genus)
..Carterella (Genus)
..Casasia (Genus)
..Catesbaea (Genus)
..Catunaregam (Genus)
..Cephaelis (Genus)
..Cephaëlis (Genus)
..Ceratopyxis (Genus)
..Ceriscoides (Genus)
..Ceuthocarpus (Genus)
..Chaetostachydium (Genus)
..Chalepophyllum (Genus)
..Chamaepentas (Genus)
..Chapelieria (Genus)
..Chazaliella (Genus)
..Chimarrhis (Genus)
..Chione (Genus)
..Chomelia (Genus)
..Ciliosemina (Genus)
..†Cinchonidium (Genus)
..Cinchonoideae (Subfamily)
..Cinchonopsis (Genus)
..Cladoceras (Genus)
..Clarkella (Genus)
..Coccochondra (Genus)
..Coddia (Genus)
..Coelopyrena (Genus)
..Coelospermum (Genus)
..Coleactina (Genus)
..Colleteria (Genus)
..Colletoecema (Genus)
..Conostomium (Genus)
..Coptophyllum (Genus)
..Coptosapelta (Genus)
..Coptosapelteae (Tribe)
..Coptosperma (Genus)
..Cordiera (Genus)
..Corynanthe (Genus)
..Coryphothamnus (Genus)
..Cosmibuena (Genus)
..Cosmocalyx (Genus)
..Coutaportla (Genus)
..Coutarea (Genus)
..Cowiea (Genus)
..Cremaspora (Genus)
..Cremocarpon (Genus)
..Crobylanthe (Genus)
..Crocyllis (Genus)
..Crossopteryx (Genus)
..Cruckshanksia (Genus)
..Crusea (Genus)
..Csapodya (Genus)
..Cubanola (Genus)
..Cyanoneuron (Genus)
..Cyclophyllum (Genus)
..Damnacanthus (Genus)
..Danais (Genus)
..Deccania (Genus)
..Declieuxia (Genus)
..Dendrosipanea (Genus)
..Denscantia (Genus)
..Dentella (Genus)
..Deppea (Genus)
..Diacrodon (Genus)
..Dibrachionostylus (Genus)
..Dichilanthe (Genus)
..Dictyandra (Genus)
..Didymaea (Genus)
..Didymochlamys (Genus)
..Didymopogon (Genus)
..Didymosalpinx (Genus)
..Diodella (Genus)
..Dioecrescis (Genus)
..Dioicodendron (Genus)
..Dirichletia (Genus)
..Discospermum (Genus)
..Diyaminauclea (Genus)
..Dolianthus (Genus)
..Dolichodelphys (Genus)
..Dolicholobium (Genus)
..Dolichometra (Genus)
..Dolichopentas (Genus)
..Duidania (Genus)
..Dunnia (Genus)
..Duperrea (Genus)
..Durringtonia (Genus)
..Edithea (Genus)
..Eizia (Genus)
..Elaeagia (Genus)
..Eleuthranthes (Genus)
..Emmenopterys (Genus)
..Emmeorhiza (Genus)
..Empogona (Genus)
..Eosanthe (Genus)
..Eriosemopsis (Genus)
..Erithalis (Genus)
..Ernodea (Genus)
..Eteriscius (Genus)
..Euclinia (Genus)
..Everistia (Genus)
..Fadogiella (Genus)
..Ferdinandusa (Genus)
..Feretia (Genus)
..Fergusonia (Genus)
..Fernelia (Genus)
..Flagenium (Genus)
..Fleroya (Genus)
..Flexanthera (Genus)
..Fosbergia (Genus)
..Galiniera (Genus)
..Gallienia (Genus)
..Galopina (Genus)
..Ganguelia (Genus)
..Gardeniopsis (Genus)
..Genipa (Genus)
..Gentingia (Genus)
..Geophila (Genus)
..Gillespiea (Genus)
..Glionnetia (Genus)
..Glossostipula (Genus)
..Gomphocalyx (Genus)
..Gonzalagunia (Genus)
..Greenea (Genus)
..Greeniopsis (Genus)
..†Grumileophyllum (Genus)
..Guettardella (Genus)
..Guihaiothamnus (Genus)
..Gynochthodes (Genus)
..Gyrostipula (Genus)
..Habroneuron (Genus)
..Haldina (Genus)
..Hedstromia (Genus)
..Hedythyrsus (Genus)
..Heinsia (Genus)
..Hekistocarpa (Genus)
..Heterophyllaea (Genus)
..Himalrandia (Genus)
..Hindsia (Genus)
..Hintonia (Genus)
..Hippotis (Genus)
..Hodgkinsonia (Genus)
..Holstianthus (Genus)
..Homollea (Genus)
..Homolliella (Genus)
..Hydrophylax (Genus)
..Hymenocoleus (Genus)
..Hyperacanthus (Genus)
..Hyptianthera (Genus)
..Isidorea (Genus)
..Ixoroideae (Subfamily)
..†Ixorophyllum (Genus)
..Jackiopsis (Genus)
..Janotia (Genus)
..Joosia (Genus)
..Jovetia (Genus)
..Kadua (Genus)
..Kailarsenia (Genus)
..Kajewskiella (Genus)
..Keenania (Genus)
..Kelloggia (Genus)
..Khasiaclunea (Genus)
..Klossia (Genus)
..Kochummenia (Genus)
..Koenania (Genus)
..Kotchubaea (Genus)
..Kraussia (Genus)
..Kutchubaea (Genus)
..Lamprothamnus (Genus)
..Landiopsis (Genus)
..Larsenaikia (Genus)
..Laxmannia (Genus)
..Lecananthus (Genus)
..Lecariocalyx (Genus)
..Lelya (Genus)
..Lemyrea (Genus)
..Lepidostoma (Genus)
..Leptactina (Genus)
..Leptodermis (Genus)
..Leptomischus (Genus)
..Leptopetalum (Genus)
..Leptoscela (Genus)
..Leptostigma (Genus)
..Leucocodon (Genus)
..Limnosipanea (Genus)
..Lindenia (Genus)
..Lorencea (Genus)
..Luculia (Genus)
..Lucya (Genus)
..Ludekia (Genus)
..Macbrideina (Genus)
..Machaonia (Genus)
..Macrocnemum (Genus)
..Macrosphyra (Genus)
..Maguireocharis (Genus)
..Maguireothamnus (Genus)
..Malanea (Genus)
..Manettia (Genus)
..Manostachya (Genus)
..Mantalania (Genus)
..Mapouria (Genus)
..Maschalocorymbus (Genus)
..Maschalodesme (Genus)
..Massularia (Genus)
..Mastixiodendron (Genus)
..Mazaea (Genus)
..Melanopsidium (Genus)
..Mericarpaea (Genus)
..Merumea (Genus)
..Metabolos (Genus)
..Metadina (Genus)
..Mexotis (Genus)
..Meyna (Genus)
..Micrasepalum (Genus)
..Microphysa (Genus)
..Mitchella (Genus)
..Mitracarpus (Genus)
..†Mitragynaxylon (Genus)
..Mitrasacmopsis (Genus)
..Mitriostigma (Genus)
..Monosalpinx (Genus)
..Morelia (Genus)
..Morierina (Genus)
..Morindopsis (Genus)
..Motleyia (Genus)
..Mouretia (Genus)
..Multidentia (Genus)
..Mussaendopsis (Genus)
..Mycetia (Genus)
..Myrioneuron (Genus)
..Myrmeconauclea (Genus)
..Myrmephytum (Genus)
..Nargedia (Genus)
..Neanotis (Genus)
..Neblinathamnus (Genus)
..Nenax (Genus)
..Neobertiera (Genus)
..Neoblakea (Genus)
..Neohymenopogon (Genus)
..Neomussaenda (Genus)
..Nernstia (Genus)
..Nertera (Genus)
..Nesohedyotis (Genus)
..Neurocalyx (Genus)
..Nichallea (Genus)
..Nodocarpaea (Genus)
..Normandia (Genus)
..Nostolachma (Genus)
..Notopleura (Genus)
..Ochreinauclea (Genus)
..Octotropis (Genus)
..Oldenlandiopsis (Genus)
..Oligocodon (Genus)
..Omiltemia (Genus)
..Oreopolus (Genus)
..Oribasia (Genus)
..Osa (Genus)
..Otiophora (Genus)
..Otomeria (Genus)
..Ottoschmidtia (Genus)
..Oxyanthus (Genus)
..Oxyceros (Genus)
..Pachystylus (Genus)
..Pagameopsis (Genus)
..†Palaeocoprosmadites (Genus)
..Paracephaelis (Genus)
..Parachimarrhis (Genus)
..Paracoffea (Genus)
..Paracorynanthe (Genus)
..Paragenipa (Genus)
..Paraknoxia (Genus)
..Parapentas (Genus)
..Patima (Genus)
..Pausinystalia (Genus)
..Payera (Genus)
..Pentagonia (Genus)
..Pentaloncha (Genus)
..Pentanisia (Genus)
..Pentanopsis (Genus)
..Pentodon (Genus)
..Peponidium (Genus)
..Perakanthus (Genus)
..Perama (Genus)
..Peripeplus (Genus)
..Pertusadina (Genus)
..Petitiocodon (Genus)
..Phellocalyx (Genus)
..Phialanthus (Genus)
..Phitopis (Genus)
..Phyllacanthus (Genus)
..Phyllis (Genus)
..Phyllocrater (Genus)
..Phyllomelia (Genus)
..Phyllopentas (Genus)
..Phylohydrax (Genus)
..Picardaea (Genus)
..Pimentelia (Genus)
..Pinarophyllon (Genus)
..Pinckneya (Genus)
..Pitardella (Genus)
..Pittoniotis (Genus)
..Placocarpa (Genus)
..Plectroniella (Genus)
..Pleiocarpidia (Genus)
..Pleiocoryne (Genus)
..Pleiocraterium (Genus)
..Plocaniophyllon (Genus)
..Poecilocalyx (Genus)
..Pogonolobus (Genus)
..Pogonopus (Genus)
..Polysphaeria (Genus)
..Polyura (Genus)
..Pomax (Genus)
..Porterandia (Genus)
..Pouchetia (Genus)
..Pravinaria (Genus)
..Preussiodora (Genus)
..Prismatomeris (Genus)
..Psathura (Genus)
..Pseudaidia (Genus)
..Pseudodiplospora (Genus)
..Pseudohamelia (Genus)
..Pseudomantalania (Genus)
..Pseudomiltemia (Genus)
..Pseudomussaenda (Genus)
..Pseudonesohedyotis (Genus)
..Pseudopyxis (Genus)
..†Psychotriphyllum (Genus)
..Psyllocarpus (Genus)
..Pteridocalyx (Genus)
..Pubistylus (Genus)
..Pygmaeothamnus (Genus)
..Pyragra (Genus)
..Quinquina (Genus)
..Ramosmania (Genus)
..Raritebe (Genus)
..Razafimandimbisonia (Genus)
..Readea (Genus)
..Renistipula (Genus)
..Rennellia (Genus)
..Rhachicallis (Genus)
..Rhadinopus (Genus)
..Rhaphidura (Genus)
..Rhipidantha (Genus)
..Rhodopentas (Genus)
..Richardia (Genus)
..Riodocea (Genus)
..Riqueuria (Genus)
..Robbrechtia (Genus)
..Robynsia (Genus)
..Rogiera (Genus)
..Roigella (Genus)
..Ronabea (Genus)
..Rosenbergiodendron (Genus)
..Rovaeanthus (Genus)
..†Rubiaceaecarpum (Genus)
..†Rubiaceocarpum (Genus)
..Rubioideae (Subfamily)
..†Rubioides (Genus)
..†Rubioxylon (Genus)
..Rubovietnamia (Genus)
..Rustia (Genus)
..Rutidea (Genus)
..Sacosperma (Genus)
..Saldinia (Genus)
..Salzmannia (Genus)
..Saprosma (Genus)
..Sarcocephalus (Genus)
..Sarcopygme (Genus)
..Schismatoclada (Genus)
..Schizenterospermum (Genus)
..Schizocolea (Genus)
..Schizomussaenda (Genus)
..Schizostigma (Genus)
..Schmidtottia (Genus)
..Schumanniophyton (Genus)
..Schwendenera (Genus)
..Scolosanthus (Genus)
..Scyphiphora (Genus)
..Scyphostachys (Genus)
..Sericanthe (Genus)
..Serissa (Genus)
..Shaferocharis (Genus)
..Sherbournia (Genus)
..Siemensia (Genus)
..Sinoadina (Genus)
..Sinospiradiclis (Genus)
..Sipaneopsis (Genus)
..Siphonandrium (Genus)
..Sommera (Genus)
..Spathichlamys (Genus)
..Spermadictyon (Genus)
..Sphinctanthus (Genus)
..Spiradiclis (Genus)
..Squamellaria (Genus)
..Stachyarrhena (Genus)
..Stachyococcus (Genus)
..Standleya (Genus)
..Steenisia (Genus)
..Stelechantha (Genus)
..Stenaria (Genus)
..Stenosepala (Genus)
..Stenostomum (Genus)
..Stenotis (Genus)
..Stephanococcus (Genus)
..Stevensia (Genus)
..Steyermarkia (Genus)
..Stichianthus (Genus)
..Stilpnophyllum (Genus)
..Stipularia (Genus)
..Streblosa (Genus)
..Streblosiopsis (Genus)
..Strumpfia (Genus)
..Stylosiphonia (Genus)
..Suberanthus (Genus)
..Synaptantha (Genus)
..Syringantha (Genus)
..Tamilnadia (Genus)
..Tammsia (Genus)
..Tamridaea (Genus)
..Tarennoidea (Genus)
..Temnocalyx (Genus)
..Temnopteryx (Genus)
..Tennantia (Genus)
..Tessiera (Genus)
..Thogsennia (Genus)
..Tinadendron (Genus)
..Tobagoa (Genus)
..Tortuella (Genus)
..Trailliaedoxa (Genus)
..Tresanthera (Genus)
..Trichostachys (Genus)
..Triflorensia (Genus)
..Trigonopyren (Genus)
..†Valerianellites (Genus)
..Vangueriella (Genus)
..Vangueriopsis (Genus)
..Vidalasia (Genus)
..Villaria (Genus)
..Virectaria (Genus)
..Warscewiczia (Genus)
..Warszewiczia (Genus)
..Wittmackanthus (Genus)
..Xantonnea (Genus)
..Xantonneopsis (Genus)
..Zuccarinia (Genus)
..Houstonia (Genus)
....Houstonia caerulea (Species) - azure bluet
....Houstonia michauxii (Species)
....Houstonia serpyllifolia (Species) - thymeleaf bluet
Authorship
SN2000 author citation
:
C. Linnaeus, 1753
Original name
:
Linnaeus, C. 1753a.
Sp. Pl.
1
: 105.
Original rank
:
Original spelling
:
Types
Type, by subsequent designation
:
Houstonia caerulea
L. (1753)
Ref:
Standley 1918. N. Amer. Fl. 32: 24.
[
new
]
Variants
Not validly published name
:
Houstonia
(Genus)
Gronov. (1735), nom. inval.
Homonyms
Allowed homonym
:
Houstonia
(Genus)
Boucek, 1988
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026