Cotinus coggygria Scop. - European smoketree. Synonymy: Rhus cotinus L.

Malosma laurina (Nutt.) Nutt. ex Abrams - Laurel-sumac. Present in the CalFlora Database (California distribution map). Photographs (2) from CalPhotos. Synonymy: Rhus laurina Nutt.

Rhus aromatica Ait. - Fragrant sumac. Present in the Texas flora and known locally as: Fragrant sumac, lemon sumac, sweetscented sumac, polecat bush No Texas distribution data available. Images available from the Vascular Plant Image Gallery.

var. arenaria (Greene) Fern. Synonymy: Rhus arenaria (Greene) G.N. Jones, Rhus trilobata var. arenaria (Greene) Barkl.

var. aromatica Synonymy: Rhus aromatica var. illinoensis (Greene) Rehd., Schmaltzia crenata (P. Mill.) Greene

var. serotina (Greene) Rehd. Present in the Texas flora, no local name. (Texas Distribution by vegetation zone). Synonymy: Rhus aromatica ssp. serotina (Greene) R.E. Brooks, Rhus trilobata var. serotina (Greene) Barkl.

Rhus X ashei (Small) Greene (pro sp.) [glabra X michauxii].

Rhus copallinum L. - Winged sumac. Present in the Texas flora and known locally as: Flameleaf sumac, dwarft sumac, shining sumac, wingrib sumac (Texas Distribution by vegetation zone).

var. copallinum

var. latifolia Engl.

var. leucantha (Jacq.) DC. Synonymy: Rhus leucantha Jacq., Rhus obtusifolia (Small) Small

Rhus glabra L. - Smooth sumac. Present in the Texas flora and known locally as: Smooth sumac, scarlet sumac (Texas Distribution by vegetation zone). Image available from the Vascular Plant Image Gallery. Synonymy: Rhus borealis Greene, Rhus calophylla Greene, Rhus glabra var. laciniata Carr., Rhus glabra var. occidentalis Torr.

Rhus hirta (L.) Sudworth - Stag-horn sumac. Images available from the Vascular Plant Image Gallery. Synonymy: Datisca hirta L., Rhus typhina L., Rhus typhina var. laciniata Wood

Rhus integrifolia (Nutt.) Benth. & Hook. f. ex Brewer & S. Wats. - Lemonade sumac. Present in the CalFlora Database (California distribution map).

Rhus kearneyi Barkl. - Kearney's sumac. This taxon listed by the Center For Plant Conservation.

Rhus lanceolata (Gray) Britt. - Prairie sumac. Present in the Texas flora and known locally as: Prairie sumac (Texas Distribution by vegetation zone). Synonymy: Rhus copallinum var. lanceolata Gray

Rhus michauxii Sarg. - False poison sumac. Listed by the U.S. FWS as endangered, the FWS local name is Michaux's sumac and the FWS range is: U.S.A. (GA, NC, SC, VA). FWS Listing information: volume 54 Federal Register 39857; September 28, 1989. This taxon listed by the Center For Plant Conservation.

Rhus microphylla Engelm. ex Gray - Little-leaf sumac. Present in the Texas flora and known locally as: Littleleaf sumac, desert sumac, scrub sumac, small-leaved sumac (Texas Distribution by vegetation zone).

Rhus ovata S. Wats. - Sugar sumac. Present in the CalFlora Database (California distribution map). Photographs (5) from CalPhotos. Synonymy: Rhus ovata var. traskiae Barkl. p.p.

Rhus X pulvinata Greene (pro sp.) [glabra X hirta]. Synonymy: Rhus glabra var. borealis Britt., non Rhus borealis Greene

Rhus sandwicensis Gray - Neneleau. Synonymy: Rhus chinensis var. sandwicensis (Gray) O. Deg. & Greenw.

Rhus trilobata Nutt. - Ill-scented sumac. Present in the CalFlora Database (California distribution map). Photographs (5) from CalPhotos. Image available from the Vascular Plant Image Gallery.

var. anisophylla (Greene) Jepson Synonymy: Schmaltzia anisophylla Greene, Schmaltzia trilobata var. anisophylla (Greene) Barkl.

var. pilosissima Engelm. Present in the Texas flora (treated as Rhus aromatica Ait. var. pilosissima (Engler) Shinnersby Hatch et al, 1990) (Texas Distribution by vegetation zone). Synonymy: Rhus aromatica ssp. pilosissima (Engelm.) W.A. Weber, Rhus aromatica var. mollis Ashe, Rhus aromatica var. pilosissima (Engelm.) Shinners, Rhus trilobata var. malacophylla (Greene) Munz

var. quinata (Greene) Jepson

var. racemulosa (Greene) Barkl. Synonymy: Schmaltzia racemulosa Greene

var. simplicifolia (Greene) Barkl. Present in the CalFlora Database (California distribution map). Synonymy: Rhus aromatica var. simplicifolia (Greene) Cronq.

var. trilobata Present in the Texas flora (treated as Rhus aromatica Ait. var. flabelliformis Shinnersby Hatch et al, 1990) and known locally as: Skunkbush (Texas Distribution by vegetation zone). Synonymy: Rhus aromatica ssp. flabelliformis (Shinners) R.E. Brooks, Rhus aromatica ssp. trilobata (Nutt.) W.A. Weber, Rhus aromatica var. flabelliformis Shinners, Rhus aromatica var. trilobata (Nutt.) Gray ex. S. Wats., Schmaltzia trilobata (Nutt.) Small

Rhus virens Lindheimer ex Gray - Evergreen sumac. Present in the Texas flora and known locally as: Evergreen sumac, tobacco sumac, lentisco (Texas Distribution by vegetation zone). Images available from the Vascular Plant Image Gallery.

var. choriophylla (Woot. & Standl.) L. Benson Present in the Texas flora (treated as Rhus virens Lindh. ex Gray ssp. choriophylla (Woot. & Standl.) Youngby Hatch et al, 1990) and known locally as: Tough-leaved sumac, Mearns sumac, evergreen sumac (Texas Distribution by vegetation zone). Synonymy: Rhus choriophylla Woot. & Standl., Rhus virens ssp. choriophylla (Woot. & Standl.) Young

var. virens

Toxicodendron diversilobum (Torr. & Gray) Greene - Pacific poison-oak. Present in the CalFlora Database (California distribution map). Photographs (11) from CalPhotos. Synonymy: Rhus diversiloba Torr. & Gray, Toxicodendron radicans ssp. diversilobum (Torr. & Gray) Thorne

Toxicodendron pubescens P. Mill. - Atlantic poison-oak. Present in the Texas flora (treated as Toxicodendron toxicarium (Salisb.) Gillisby Hatch et al, 1990) and known locally as: Eastern poison-oak (Texas Distribution by vegetation zone). Image available from the Vascular Plant Image Gallery. Synonymy: Rhus acutiloba Turcz., Rhus toxicarium Salisb., Rhus toxicodendron L., Toxicodendron quercifolium (Michx.) Greene, Toxicodendron toxicarium Gillis, Toxicodendron toxicodendron (L.) Britt.

Toxicodendron radicans (L.) Kuntze - Eastern poison-ivy. Present in the Texas flora and known locally as: Poison-oak, poison-ivy, hiedra No Texas distribution data available. Images available from the Vascular Plant Image Gallery.

ssp. divaricatum (Greene) Gillis Synonymy: Toxicodendron radicans var. divaricatum (Greene) Barkl.

ssp. eximium (Greene) Gillis Present in the Texas flora and known locally as: Southwest poison-oak (Texas Distribution by vegetation zone). Synonymy: Rhus toxicodendron var. eximia (Greene) McNair, Toxicodendron radicans var. eximium (Greene) Barkl.

ssp. negundo (Greene) Gillis Present in the Texas flora and known locally as: Poison-ivy (Texas Distribution by vegetation zone). Synonymy: Toxicodendron radicans var. negundo (Greene) Reveal

ssp. pubens (Engelm. ex S. Wats.) Gillis Present in the Texas flora and known locally as: Poison-ivy (Texas Distribution by vegetation zone). Synonymy: Toxicodendron radicans var. pubens (Engelm. ex S. Wats.) Reveal

ssp. radicans Present in the Texas flora, no local name. (Texas Distribution by vegetation zone). Synonymy: Rhus radicans L., Rhus radicans var. littoralis (Mearns) Deam, Rhus radicans var. malacotrichocarpa (A.H. Moore) Fern., Toxicodendron vulgare P. Mill.

ssp. verrucosum (Scheele) Gillis Present in the Texas flora and known locally as: Poison-ivy (Texas Distribution by vegetation zone). Synonymy: Toxicodendron radicans var. verrucosum (Scheele) Barkl.

Toxicodendron rydbergii (Small ex Rydb.) Greene - Western poison-ivy. Present in the Texas flora, no local name. (Texas Distribution by vegetation zone). Synonymy: Rhus radicans var. rydbergii (Small ex Rydb.) Rehd., Rhus radicans var. vulgaris (Michx.) DC., Rhus toxicodendron var. vulgaris Michx., Toxicodendron desertorum Lunell, Toxicodendron radicans var. rydbergii (Small ex Rydb.) Erskine

Toxicodendron vernix (L.) Kuntze - Poison-sumac. Present in the Texas flora and known locally as: Poison sumac, poison elder, poison dogwood (Texas Distribution by vegetation zone). Images available from the Vascular Plant Image Gallery. Synonymy: Rhus vernix L.