These
are native species with their primary geographic range outside of Texas,
recently discovered within the state boundary. Also included area a
few others that are first documented or “rediscovered” from the state.
ALISMATACEAE
* Sagittaria chapmanii (J.G. Smith) C. Mohr
Sorrie, B.A. and R.J. LeBlond.
2008. Noteworthy collections
from the southeastern United States. J.
Bot. Res. Inst. Texas 2: 1353–1361.
Grimes Co. The native range of S.
chapmanii is now known to be from South Carolina to Texas.
APIACEAE
* Lilaeopsis carolinensis Coulter & Rose
Hatch, S.L. and A.T. Slack. 2008.
Lilaeopsis carolinensis (Apiaceae), a species new to Texas and a
key to Lilaeopsis in Texas. J.
Bot. Res. Inst. Texas 2: 1353–1361.
A single collection from Jefferson Co.
The authors noted that L. carolinensis is native to the
southeastern USA (Virginia south to Florida and west to Louisiana) and is
“likely a recent introduction to Texas,” not having been previously recorded
for the state. But they also observed
that the “discovery in Texas is not unexpected because of its close proximity
to similar Louisiana habitats from which the species is known.” A second species of Lilaeopsis, L.
chinensis, also is known in Texas from only a single collection: Chambers
Co.
APOCYNACEAE
* Telosiphonia brachysiphon (Torr.) Henrickson
Henrickson, J. 1996. Studies
in Macrosiphonia (Apocynaceae): generic recognition of Telosiphonia.
Aliso 14: 179-195.
El Paso Co.
ASCLEPIADACEAE
* Asclepias hirtella (Pennell) Woodson
White, M. 2008. Asclepias hirtella
(Apocynaceae) newly documented for the flora of Texas. J. Bot. Res. Inst. Texas 2: 1495–1496.
Fannin, Henderson, Lamar cos.
ASTERACEAE
* Anaphalis margaritacea (L.) Benth.
Nesom, G.L. and R.J. O’Kennon.
2002. New vascular plant records for Texas. Sida 20: 435-436.
Brewster Co., Hale Co.
* Arida blephariphylla (A. Gray) D.R. Morgan & R.L. Hartman
Nesom, G.L., L.A. Vorobik, and R.L.
Hartman. 1990. The identity of Aster blepharophyllus A.
Gray (Asteraceae: Astereae). Syst. Bot. 15: 638–642.
Presidio Co., where discovered in 2001 by Charmaine Delmatier. It grows
in small gypseous canyons with permanent streams, at 1400–1500 m -- the same
canyons as Arida mattturneri and Centaurium blumbergianum.
The species previously was known only from the type locality in
southwestern New Mexico, where now appararently extinct, and from one other
site – an area of gypseous hot springs near Chihuahua City in Edo. Chihuahua,
Mexico. Originally described as Aster blepharophyllus A. Gray
then transferred to Machaeranthera as M. gypsitherma Nesom,
Vorobik, & Hartman (not M. blephariphylla (A. Gray) Shinners),
then to Arida (Sida. 20: 1413. 2003).
* Baccharis sarothroides Gray
Worthington, R.D. 1990.
Additions to the flora of Texas from El Paso County. Sida 14:
135-137.
El Paso Co. "This species has apparently been recently seeded into
the area along roadways where isolated plants are infrequently
encountered. The species is also occasionally used as an ornamental in
desert landscaping in El Paso."
* Bidens alba var. radiata
(Schultz-Bip.) Ballard ex T.E. Melchert
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant records.
II. Sida 20: 437–444.
Cameron Co., Chambers Co., Harris Co., Montgomery Co.
* Chromolaena bigelovii (Gray) King &
Robinson
Nesom, G.L. and B.L. Turner.
2006. New distribution records for Eupatorieae (Asteraceae) in the United
States. Sida 22:1249–1253.
Brewster Co., Uvalde Co.
* Eupatorium album L.
Singhurst, J.R., K.M. Fleming, and W.C.
Holmes. 1998. Eupatorium album L. (Compositae): new to
Texas. Phytologia 85: 96-98.
Anderson Co.
* Eupatorium semiserratum DC.
Brown, L.E., E.L. Keith, D.J. Rosen, and
J. Liggio. 2007. Notes of the flora of Texas with additions and
other significant records. III. J. Bot. Res. Inst. Texas 1:
1255-1264.
Austin Co., Chambers Co., Hardin Co., Harris Co., Liberty Co., Newton Co.,
Tyler Co. Treated by Correll & Johnston (1970) as a synonym of E.
glaucescens. Siripum and Shilling (FNA, 2006) included E.
semiserratum but indicated that it reached westward only as far as
Louisiana; they treated E. glaucescens (as E. linearifolium
Walter) distinct from E. semiserratum.
* Euthamia caroliniana (L.) Greene ex Porter & Britton
Singhurst, J.R., D.J. Rosen, and W.C.
Holmes. 2009. Two additions to the vascular flora of
Texas. Phytologia 91: 69-72.
Chambers Co. The authors noted that the
locality is “approximately 180 km west of the nearest known occurrence of E.
caroliniana in Jefferson Davis Parish, Louisiana.” The identity of this population is under further investigation
(Nesom in progress).
* Filago californica Nutt.
Worthington, R.D. 1990.
Additions to the flora of Texas from El Paso County. Sida 14:
135-137.
El Paso Co.
* Hymenoxys texana (Coult. & Rose)
Cockerell
Brown, L.E., E.L. Keith, D.J. Rosen, and
J. Liggio. 2007. Notes of the flora of Texas with additions and
other significant records. III. J. Bot. Res. Inst. Texas
1:1255-1264.
Trinity Co., an extension from other known localities of this rare endemic in
Harris and Fort Bend cos. A summary of collection history is
provided.
* Lactuca graminifolia L.
Brown, L.E., E.L. Keith, D.J. Rosen, and
J. Liggio. 2007. Notes of the flora of Texas with additions and
other significant records. III. J. Bot. Res. Inst. Texas 1:
1255-1264.
Angelina Co. Previously known in Texas only from the trans-Pecos
region.
* Lactuca intybacea Jacq. ( = Launea
intybacea (Jacq.) Beauv.)
Brown, L.E. 1996. Krapovickasia
physaloides (Malvaceae) and Lactuca intybacea
(Asteraceae) new to Texas and the United States. Sida 17:
291–294.
Starr Co., from Mexico and Central America.
* Mikania cordifolia (L.f.) Willd.
Holmes, W. C., R. D. Thomas, & B.
Lipscomb. 1992. First report of Mikania cordifolia in Texas. Sida
15: 163-164.
Newton Co. Noted or speculated in some previous literature to occur in
Texas, but first documented only here. Florida, Mississippi, and
Louisiana, from wide distribution in South America and Central America.
* Plateilema palmeri (A. Gray) Cockerell
Turner, B.L. 2000. Plateilema
(Asteraceae: Helenieae) a new generic report for the United States. Sida
19:185-187.
Brewster Co. (roadsides, open areas over limestone; flowering April) southward
through its larger ranger in central Coahuila to southern Nuevo Leon,
Mexico.
* Pseudognaphalium jaliscense
(Greenm.) Anderb.
Nesom, G.L. 2001. New
records in Pseudognaphalium (Gnaphalieae: Asteraceae) for the United
States. Sida 19: 1185-1190.
Brewster Co., Jeff Davis Co.
* Stylocline micropoides
Gray
Worthington, R.D. 1990.
Additions to the flora of Texas from El Paso County. Sida 14:
135-137.
El Paso Co. “This species has long been suspected to be a part of the
Texas flora as the type locality, 'hills near Frontera , New Mexico,' might be
on the Texas side of the Rio Grande.”
* Symphyotrichum laeve var. purpuratum
(Nees) Nesom
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20: 437–444.
Polk Co., Tyler Co.
* Verbesina walteri Shinners
Singhurst, J.R. and W.C. Holmes.
2000. Dipsacus fullonum (Dipsacaceae) and Verbesina
walteri (Asteraceae), new to Texas. Sida 19: 723-725.
Newton Co.
BORAGINACEAE
* Tournefortia hirsutissima L.
Richard, A. and W.K. King. 2009. Tournefortia hirsutissima
(Boraginaceae) new to the Texas flora.
J. Bot. Res. Inst. Texas 3: 465–467.
Cameron Co. south of San Benito.
The authors “suspect that the plants arrived by natural means, probably
as seeds deposited by birds. Llera and
El Encino, two collections sites in Tamaulipas, Mexico, are less than 400 km
from San Benito.”
CACTACEAE
* Pereskia aculeata P. Miller.
Ideker, J. 1996. Pereskia
aculeata (Cactaceae), in the Lower Rio Grande Valley of Texas. Sida
17: 527–528.
Willacy Co. Apparently native, at the northernmost tip of the species
range. This climbing cactus is native to South America, the West Indies,
and eastern Mexico; naturalized in Florida from escaped plantings.
CALYCANTHACEAE
* Calycanthus floridus L. var. glaucus (Willd.) Torrey & Gray
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20: 437–444.
Newton Co. “We are uncertain of their native status here; however, they
are well established and naturalized subshrubs and should be considered a
member of the Texas flora.”
CAPRIFOLIACEAE
* Triosteum perfoliatum L.
Holmes, W.C., K.M. Fleming, R.
& R. Loper, and J.R. Singhurst. 1999. Triosteum
(Caprifoliaceae) in Texas. Sida:18: 931-933.
Anderson Co.
CARYOPHYLLACEAE
* Cerastium pumilum Curtis
Rabeler, R.K. and A.A. Reznicek.
1997. Cerastium pumilum and Stellaria
pallida (Caryophyllaceae) new to Texas. Sida:17:
843–845.
Native to the eastern USA but probably recently adventive in Texas: Kaufman
Co.
* Geocarpon mininum MacKenzie
Keith, E.L. and J.R. Singhurst.
2004. Geocarpon mininum (Caryophyllaceae), new to Texas.
Sida 21: 1165-1169.
Anderson Co.
* Silene virginica L.
Singhurst, J.R., M. White, and
W.C.Holmes. 2002. Noteworthy collections: Texas. Vicia
grandiflora (Fabaceae), Iris fulva (Iridaceae), and Silene
virginica (Caryophyllaceae). Castanea 67: 213-216.
Cass Co.
* Stellaria pallida (Dumort.) Crép.
Rabeler, R.K. and A.A. Reznicek.
1997. Cerastium pumilum and Stellaria
pallida (Caryophyllaceae) new to Texas. Sida:17:
843–845.
Native to the eastern USA but probably recently adventive in Texas: Hopkins
Co.
CISTACEAE
* Lechea minor L.
Brown, L.E., E.L. Keith, D.J. Rosen, and
J. Liggio. 2007. Notes of the flora of Texas with additions and
other significant records. III. J. Bot. Res. Inst. Texas 1:
1255-1264.
Hardin Co.
CYPERACEAE
* Cyperus cephalanthus Torrey & Hook.
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20:437–444. Harris Co. “Carter and McInnis
(1993) reported the type locality of this sedge from somewhere near
Galveston Bay. The type collection was made in 1835 and the species has
not been recollected in Texas since.” Rosen, D.J. and B.J.
Christoffersen. 2004. Rediscovery of Cyperus cephalanthus
(Cyperaceae) in Texas. Phytologia 86:110-112. Brazoria Co.
* Eleocharis mutata (L.) Roem. & Schult.
Rosen, D.J. and S.D. Jones.
2004. Eleocharis mutata (Cyperaceae) new to the flora of North
America north of Mexico. Sida 21: 1153-1160.
Brazoria Co.
* Rhynchospora capillacea
Torrey
Jones, S.D. and G.D. Jones.
1990. Rhynchospora capillacea (Cyperaceae), new to Texas.
Sida 14: 134-135.
Kerr Co.
* Rhynchospora chapmanii M.A. Curtis
Singhurst, J.R., D.J. Rosen, and W.C.
Holmes. 2009. Two additions to the vascular flora of
Texas. Phytologia 91: 69-72.
Chambers Co. “This location is about
450 km west of the nearest known occurrence of R. chapmanii in St.
Tamanny Parish, Louisiana.”
* Schoenoplectus hallii (Gray) Galen Smith
O'Kennon, R.J. and C. McLemore.
2004. Schoenoplectus hallii (Cyperaceae), a globally
threatened species new for Texas. Sida 21:1201-1204. McKenzie,
P.M., S. Galen Smith, and M. Smith. 2007. Status of Schoenoplectus
hallii (Hall’s bulrush) (Cyperaceae) in the United States. J. Bot.
Res. Inst. Texas 1: 457-481.
Wise Co., along the moist sandy-clay margins of small ponds in the LBJ National
Grasslands.
ERICACEAE
* Lyonia lucida (Lam.) K. Koch
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20: 437–444.
Newton Co.
EUPHORBIACEAE
* Phyllanthus niruri L. subsp. lathyroides (Kunth) G.L.
Webster
Noted by Correll & Johnston (1970)
as perhaps extinct in its only then-known Texas locality (Gonzales Co.);
documented here for DeWitt Co. and Fayette Co. Brown, L.E. and S.J.
Marcus. 1998. Notes on the flora of Texas with additions and other
significant records. Sida:18:315-324.
FABACEAE
* Rhynchosia tomentosa (L.) Hook. & Arn.
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20:437–444. Jasper Co. Reported in previous
literature but without documented voucher or locality information.
FAGACEAE
* Quercus arkansana Sarg.
Hunt, D.M., MacRoberts, M.H. and B.R.
MacRoberts. 1995. The status of Quercus arkansana Sarg.
(Fagaceae) in Texas. Phytologia 79: 22-24. Brown, L.E. and I.S.
Elsik. 2002. Notes on the flora of Texas with additions and other
significant records. II. Sida 20: 437–444.
First reported from Cass Co.; 2002 additions from Hardin Co. (without
voucher citation), Jasper Co.
IRIDACEAE
* Iris fulva Ker Gawler
Singhurst, J.R., M. White, and
W.C.Holmes. 2002. Noteworthy collections: Texas. Vicia
grandiflora (Fabaceae), Iris fulva (Iridaceae), and Silene
virginica (Caryophyllaceae). Castanea 67: 213-216.
Sabine Co. Reported to occur in Texas in various earlier literature,
but apparently first documented here.
ISOETACEAE
* Isoetes piedmontana (N. Pfeiff.) C.F. Reed
Holmes, W.C., A.E. Rushing, and J.R.
Singhurst. 2005. Taxonomy and identification of Isoetes
(Isoetaceae) in Texas based on megaspore features. Lundellia 8: 1-6.
Llano Co., Mason Co., in shallow depressions and temporary pools on granite
outcrops, disjunct in Texas from Alabama-to-Virginia range.
JUNCAGINACEAE
* Triglochin maritima L.
Turner, B.L. and M.W. Turner.
2003. Triglochin concinna (Juncaginaceae), a new family, genus,
and species for Texas. Sida 20: 1721-1722.
Presidio Co. Reported as Triglochin concinna var. debilis
(M.E. Jones) J.T. Howell.
LAMIACEAE
* Blephilia hirsuta (Pursh) Benth.
Holmes, W.C. and J.R. Singhurst.
2005. The status of Blephilia (Lamiaceae) in Texas.
Phytologia 87: 118-123.
A Texas collection by Charles Wright (GH), perhaps from Angelina, Newton,
Jasper, or Tyler cos. Sometimes previously included for Texas flora, but
without documentation. Reports of Blephilia ciliata in Texaas
have been based on misidentified Monarda clinopodioides.
* Cunila origanoides (L.) Britt.
Singhurst, J.R. and W.C. Holmes.
2004. Comments on the rediscovery and distribution of Cunila origanoides
(Lamiaceae) in Texas. Sida 21: 1161-1163.
Confirms occurrence in Texas: Kaufman Co., Lamar Co.
LILIACEAE
* Trillium ludovicianum Harbison
Singhurst J.R., E.S. Nixon, W.F.
Caldwell, and W.C. Holmes. 2002. The genus Trillium
(Liliaceae) in Texas. Castanea 67: 316-323.
Jasper Co., Newton Co., Tyler Co.
* Uvularia sessilifolia L.
Singhurst, J.R., W.F. Carr, W.
Ledbetter, & W.C. Holmes. 2003. Uvularia (Liliaceae)
in Texas. Sida 20: 1713-1716.
Cass Co., Jasper Co., Newton Co. An earlier indication (Utech &
Kawano 2002, FNA) that the species occurs in northeastern Texas apparently was
based on misidentifications of immature Polygonatum biflorum.
LYCOPODIACEAE
* Palhinhaea cernua (L.) Vasc. & Franco
Palhinhaea cernua (L.) Vasconcellos & Franco (Lycopodiaceae) new to
Texas. Phytologia 78: 402-403.
Jasper Co.
LYTHRACEAE
* Lythrum lineare L.
Brown, L.E. and I.S. Elsik.
2002. Notes on the flora of Texas with additions and other significant
records. II. Sida 20: 437–444. Graham, S.A. 1964. The
genera of Lythraceae in the southeastern United States. J. Arnold Arb.
45: 235–250.
Chambers Co. Noted in 1964 to occur in Texas, but without
documentation.
MALVACEAE
* Krapovickasia physaloides (Presl) Fryxell
Brown, L.E. 1996. Krapovickasia
physaloides (Malvaceae) and Lactuca intybacea
(Asteraceae) new to Texas and the United States. Sida 17:
291–294.
Karnes Co., from native Mexican distribution.
ORCHIDACEAE
* Deiregyne confusa Garay
Ambs, S. 2006. The elusive Deiregyne confusa. Native
Orchid Conf. J. 3:1-5. Coleman, R.A., J. Sirotnak, and A. Leavitt.
2006. The hunt for Deiregyne confusa. Native Orchid Conf.
J. 3:7-8, 13. Rediscovered in 2004 in essentially in the same area as the
original 1931 collection by Steyermark in the Chisos Mountains.
* Malaxis wendtii Salazar
Todson, T.K. Malaxis wendtii
(Orchidaceae) in the United States. Sida 16:591–592. 1995.
Originally described from Sierra del Carmen and Serranias del Burro in
northwestern Coahuila (Salazar, G. 1993. Orquidea 13: 281–284.) and
quickly found by Todsen to extend into adjacent Texas (Chisos Mts. of Big Bend
Natl. Park, Brewster Co.) as well as to New Mexico (Catron Co., Grant Co.,
Lincoln Co., Los Alamos Co., Otero Co.) and Arizona (Apache Co., Cochise Co.,
Pima Co., Santa Cruz Co.).
* Platanthera flava (L.) Lindl.) var.
herbiola (R.
Brown) Luer
Brown, P.M. 2007. Notes on
Texas orchids (Orchidaceae). J. Bot. Res. Inst. Texas 1(2): 1265–1268.
2007.
Sabine Co. Brown notes that it was “first found by Sandi Pelchat in 2002
in Sabine County was documented as a new variety for Texas (Pelchat, pers.
comm.).”
POACEAE
* Ctenium aromaticum (Walter) Alph. Wood
Singhurst, J.R., E.L. Keith, and W.C.
Holmes. 2005. Three species of vascular plants new to Texas.
Phytologia 87: 124-128.
Newton Co.
* Saccharum (Erianthus) coarctatum
(Fern.) R. Webster
Brown, L.E. and S.J. Marcus.
1998. Notes on the flora of Texas with additions and other significant
records. Sida:18: 315-324.
Liberty Co., Tyler Co.
* Sporobolus coahuilensis Valdez
Turner, B.L. 2004. Sporobolus
coahuilensis (Poaceae): a new record for the U.S.A. Trans-Pecos
Texas. Sida 21: 455-458.
Brewster Co., Hudspeth Co.
RANUNCULACEAE
* Enemion biternatum Raf.
Singhurst, J.R., J.W. Smith Jr., and
W.C. Holmes. 1998. Enemion biternatum Raf. (Ranunculaceae)
in Texas. Phytologia 85: 130-133. (synonym = Isopyrum
biternatum (Raf.) Torrey & Gray)
Red River Co.
* Thalictrum thalictroides (L.)
Eames & Boivin
Singhurst, J.R. and W.C. Holmes.
1998. Thalictrum thalictroides (L.) Eames & Boivin
(Ranunculaceae): new to Texas. Phytologia 85: 273-275.
Lamar Co., Red River Co.
RUBIACEAE
* Houstonia longifolia Gaertn.
Singhurst, J.R. and W.C. Holmes.
2001. Houstonia longifolia (Rubiaceae): newly documented for the
flora of Texas. Sida 19: 1183-1184.
Red River Co.
SAXIFRAGACEAE
* Decumaria barbara L.
Singhurst, J.R., E.L. Keith, and W.C.
Holmes. 2005. Three species of vascular plants new to Texas.
Phytologia 87: 124-128.
Newton Co.
SCROPHULARIACEAE
* Agalinis harperi Pennell
Keith, E.L. and J. Hays.
2003. Notes on two species of Agalinis (Scrophulariaceae)
including Agalinis harperi, new to Texas. Sida 20:
1321-1322.
Newton Co.
* Capraria mexicana Moric. ex Benth.
Ideker, J. 1996. Capraria
mexicana (Scrophulariaceae), an endangered addition to the United States
flora. Sida 17: 523–526. Richardson, A. and K. King.
2006. Capraria mexicana (Scrophulariaceae) in Cameron County,
Texas: rediscovered in the United States. Sida 22: 1237-1238.
First discovered by Ideker in Falcon State Recreation Area in Starr Co. A
shrub native to eastern and southern Mexico; reported from Cameron Co. in
2006.
* Seymeria falcata B.L. Turner
Fenstermacher, J. 2006. Seymeria
falcata (Scrophulariaceae), a new record for Texas and the United
States. Sida 22: 811-812.
Brewster Co., northward extension from Mexico.
* Stemodia coahuilensis (Henrickson) B.L. Turner
Turner, B.L. 2005. Stemodia
coahuilensis (Scrophulariaceae), a new record for the United States.
Sida 21: 1935.
Jeff Davis Co., Presidio Co.
Guy Nesom
23 Aug 2009