⚠ Version 1.1 of The Plant List has been superseded and should no longer be used.

The new version is available at http://www.worldfloraonline.org. The new version is enhanced, using more data sources including Taxonomic Expert Networks and will be more frequently updated.

The genus Houstonia is in the family Rubiaceae in the major group Angiosperms (Flowering plants).

Statistics are at the end of the page.

Species in Houstonia

• Jump to species starting with:
• A
• B
• C
• H
• L
• M
• N
• O
• P
• R
• S
• T
• W

See "Status", "Confidence level", "Source" for definitions.

Sort the name records using the buttons.

Name	Status	Confi­dence level	Source	Date supplied	Infra. rec.
Houstonia acerosa (A.Gray) Benth. & Hook.f.	Accepted		WCSP	2012-03-23	2
Houstonia biloba Raf.	Unresolved		WCSP	2012-03-23
Houstonia caerulea L.	Accepted		WCSP	2012-03-23
Houstonia canadensis Willd. ex Roem. & Schult.	Accepted		WCSP	2012-03-23
Houstonia cervantesii Terrell	Unresolved		TRO	2012-04-18
Houstonia chlorantha Bertol.	Unresolved		WCSP	2012-03-23
Houstonia correllii (W.H.Lewis) Terrell	Accepted		WCSP	2012-03-23
Houstonia croftiae Britton & Rusby	Accepted		WCSP	2012-03-23
Houstonia humifusa (Engelm. ex A.Gray) A.Gray	Accepted		WCSP	2012-03-23
Houstonia longifolia Gaertn.	Accepted		WCSP	2012-03-23	1
Houstonia micrantha (Shinners) Terrell	Accepted		WCSP	2012-03-23
Houstonia nuttalliana Fosberg	Unresolved		TRO	2012-04-18
Houstonia ochroleuca Raf.	Unresolved		TRO	2012-04-18
Houstonia ouachitana (E.B.Sm.) Terrell	Accepted		WCSP	2012-03-23
Houstonia palmeri A.Gray	Accepted		WCSP	2012-03-23	1
Houstonia parviflora Holz. ex Greenm.	Accepted		WCSP	2012-03-23
Houstonia procumbens (Walter ex J.F.Gmel.) Standl.	Accepted		WCSP	2012-03-23
Houstonia prostrata Brandegee	Accepted		WCSP	2012-03-23
Houstonia purpurea L.	Accepted		WCSP	2012-03-23	2
Houstonia pusilla Schoepf	Accepted		WCSP	2012-03-23
Houstonia reticulata Raf.	Unresolved		WCSP	2012-03-23
Houstonia rosea (Raf.) Terrell	Accepted		WCSP	2012-03-23
Houstonia rubra Cav.	Accepted		WCSP	2012-03-23
Houstonia serpyllifolia Michx.	Accepted		WCSP	2012-03-23
Houstonia sharpii Terrell	Accepted		WCSP	2012-03-23
Houstonia spellenbergii (G.L.Nesom & Vorobik) Terrell	Accepted		WCSP	2012-03-23
Houstonia subviscosa (C.Wright ex A.Gray) A.Gray	Accepted		WCSP	2012-03-23
Houstonia teretifolia Terrell	Accepted		WCSP	2012-03-23
Houstonia wrightii A.Gray	Accepted		WCSP	2012-03-23

Statistics

The Plant List includes 140 scientific plant names of species rank for the genus Houstonia. Of these 23 are accepted species names.

The Plant List includes a further 79 scientific plant names of infraspecific rank for the genus Houstonia. We do not intend The Plant List to be complete for names of infraspecific rank. These are primarily included because names of species rank are synonyms of accepted infraspecific names.

Species names

The status of the 140 species names for the genus Houstonia recorded in The Plant List, are as follows:

	Status	Total
◕	Accepted	23	16.4%
◕	Synonym	111	79.3%
◕	Unplaced	0	0%
◕	Unassessed	6	4.3%

All names

The status of the 219 names (including infraspecific names) for the genus Houstonia recorded in The Plant List, are as follows:

	Status	Total
◕	Accepted	29	13.2%
◕	Synonym	184	84.0%
◕	Unplaced	0	0%
◕	Unassessed	6	2.7%

Of the species names,

• 5 are recorded as invalid
• 11 are recorded as illegitimate

The confidence with which the status of the 140 species names recorded in The Plant List for the genus Houstonia, are assigned as follows:

	Confidence level	Accepted	Synonym	Unplaced	Unassessed	Total
	High confidence	23	110	0	0	133	95.0%
	Medium confidence	0	0	0	0	0	0%
	Low confidence	0	1	0	6	7	5.0%

The source of the species name records found in The Plant List for the genus Houstonia is as follows: