This character is best observedĪt middle parts of the stem prickles at the base of the plant are often significantly denser, straighter, thicker, and/or otherwise morphologically dissimilar to those on middle and upper parts of the plant. A primary distinction between the four species involves the prickles (technically not thorns, which are anatomically different structures).
The four species recognized are distinguished by the characters in the Comparative Table. All generally grow best in full sun, with root access to a plentiful supply of ground water. The 2-3 pairs of leaflets are most often single-toothed (i.e., the evenly sized teeth form a single series)Īnd lack marginal glands. The native thicket-forming roses of California, which are those most frequently encountered, tend to form large shrubs or dense thickets. The nine species of native roses currently recognized as occurring in California are arranged in the following three groups:
#California sea of roses crossword manual#
Original descriptions from which treatments in The Jepson Manual.A Key to Species of native and naturalized roses in California.Intended for use by a broad audience, the site includes: It will be updated as necessary to reflect significant new information and any resultant changed taxonomy. The Jepson Manual: Higher Plants of California. Native California Roses Native California RosesĮrtter, website is an on-line monograph of native Rosa in California, prepared by the author of Rosa for
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