There is much disagreement in regard to the taxonomy of Rhus L. in the recent regional
floras of North America. While many authors accept Engler's delimitation of the genus and …

1 Prepared for a generic flora of the southeastern United States, a joint project of the Arnold
Arboretum and the Gray Herbarium of Harvard University, made possible through the …

Rhus hirta (L.) Sudworth is based on Datisca hirta L., a name long rejected as a monstrosity
but which has priority over Rhus typhina L.(1756). Three formae of the North American …

Since the publication of the key to the genera of the Anacardiaceae by Engler in Engler &
Prantl's Die nat? rlichen Pflanzenfamilien 3 (5)-. 138-178 in 1892 there seems to have been …

1 Prepared for a biologically oriented generic flora of the southeastern United States, a joint
project of the Arnold Arboretum and the Gray Herbarium of Harvard University which has …

Armed or unarmed trees or shrubs [sometimes scandent or xeromorphic], rarely herbs.
Leaves alternate or more rarely opposite, simple or compound, usually glandular-punctate …

Annual, biennial or perennial herbs [infrequently shrubs to trees; stems sometimes
succulent] with simple and often glandular trichomes; underground stems, rhizomes …

1 Prepared for a biologically oriented generic flora of the southeastern United States, a joint
project of the Arnold Arboretum and the Gray Herbarium made possible through the support …

1 Prepared for a generic flora of the southeastern United States, a project of the Arnold
Arboretum and the Gray Herbarium of Harvard University made possible through the support …

Shrubs or trees with simple, alternate, exstipulate leaves. Flowers com-plete, showy, borne
singly in the axils of the leaves. Sepals 5 (6), im-bricate (quincuncial: 2 outside, 2 inside, 1 in …