For Cultivation in Southern Arizona
New World Salvias For Cultivation in Southern Arizona Item Type Article Authors Starr, Greg Publisher University of Arizona (Tucson, AZ) Journal Desert Plants Rights Copyright © Arizona Board of Regents. The University of Arizona. Download date 23/09/2021 12:15:59 Link to Item http://hdl.handle.net/10150/609082 Starr New World Salvias 167 Literature Review New World Salvias Salvia, with nearly 800 species, is the largest genus in the Labiatae, a family characterized by square stems; opposite leaves; a zygomorphic, sympetalous corolla; two or four For Cultivation stamens; and a superior, four -lobed ovary (Peterson, 1978). Species of Salvia vary in habit from annual, biennial, or in Southern Arizona perennial herbs to subshrubs and small to large shrubs. Leaves are simple or pinnate with toothed or pinnatisect margins. (Bailey, 1902; Bailey, 1928; Synge, 1969; Taylor, 1961) Greg Starr In subgenus Calosphace, the inflorescence is a series of 3340 W. Ruthann Rd. reduced cymes, called cymules. Each node bears two cymules which together appear to form a whorl of flowers, Tucson, AZ 85 745 variously called a verticillaster, a glomerule, or a false whorl (Peterson, 1978). The verticillasters may be arranged in terminal racemes (S. greggii, Figure 3), or axillary racemes (S. regla, Figure 6). The verticillasters may be congested along the axis (S. lavanduloides, Figure 7) or more or less evenly spaced (S. greggii, Figure 3). Each verticillaster is subtended by a pair of bracts which may be persistent, deciduous, or caducous. The bracts range from minute, green, and deciduous (S. azurea) to large, colored, Acknowledgments and persistent (S.
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