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"Geranium" is from the Greek "geranos", "crane", referring to the long, pointed seed pod that resembles a Crane's bill. Linnaeus named this genus in 1753. The precise identification of Geranium species is often problematic. As Stanley Welsh says in his 4th edition of A Utah Flora: "Diagnostic criteria have been based previously on such features as kind of pubescence and its position on plant parts, but those features do not appear to be of primary diagnostic value. Thus, keys are difficult to compose that will allow accurate identification of all specimens. Because of these factors the following key [in Welsh's A Utah Flora] is tentative at best." Welsh's comments about the difficulty in identifying Geraniums is illustrated in the following partial chronology of the attempt to identify the species that we now call Geranium caespitosum, the first species shown below: The plant has endured at least eleven scientific name changes: the plant was first described and named in 1823 by Edwin James after he saw it (but did not collect a specimen) along the South Platte in Colorado in 1820. James named the plant Geranium caespitosum and it was soon given the common name of "James Crane's Bill". In 1847 Augustus Fendler collected a plant in the Santa Fe area along Santa Fe Creek and in 1849 Asa Gray described it and named it Geranium caespitosum. Somehow another specimen collected by Fendler was described, also in 1849, by John Torrey who named it Geranium fremontii, "Fremont Crane's Bill". In 1862 George Engelmann named a plant Geranium fremontii variety parryi, Parry Crane's Bill, from a specimen collected by Charles Parry in Colorado in 1861. Amos Heller renamed the Parry specimen, Geranium parryi. And so on and so on. All of these plants, and many others with other names, are apparently the same species, varying, perhaps, especially in pubescence and glandularity. A re-examination of all specimens led full circle to James' original designation of G. caespitosum. The Fremont and Parry designations (and others) are now considered the same as, or perhaps, varieties of Geranium caespitosum. Stanley Welsh sums the Geranium nomenclatural difficulties : "[This] is typical of the problems of interpretation of perennial geraniums generally; i.e., they tend to merge morphologically (hybridize?) when the taxa meet, and there are few, if any, definitive diagnostic features.... These problems have led to contradictory and often unsatisfactory treatments of our perennial geranium species." The three Geraniums shown on this page do have some characteristics that help in separating them: 1) Flower color. The first three points are evidenced by the photographs on this and a second page of Geraniums; I have added a side-by-side comparison of the leaves immediately below. Leaves of G. caespitosum are 2-7 centimeters wide, are usually cut 3-5 times, and have more rounded lobes; G. richardsonii and G. viscosissimum leaves are 6-12 centimeters wide, are cut 5-7 times, but differ in that G. richardsonii leaves have more sharply pointed lobes than G. viscosissimum. Also notice that the main long lobes of G. richardsonii and G. viscosissimum project in all directions; those of G. caespitosum do not.
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Geranium caespitosum
(Purple Wild Geranium) Geraniaceae (Geranium Family) Foothills, montane, subalpine. Woodlands.
Summer. This less common cousin of the very common white Wild Geranium shown below, tends to lean and sprawl, has few flowers per plant, the flowers are gorgeous lilac to magenta, and the leaves have deep cuts and rounded lobes. Stems are often red. Purple Wild Geranium is often found in scattered ones and twos at dry trail-side hidden in grasses . The Latin word "caespitosum" is common botanical nomenclature meaning "growing in clumps". |
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| Geranium
viscosissimum
(Sticky Geranium) Geraniaceae (Geranium Family) Foothills, montane, subalpine. Woodlands.
Summer. Sticky Geranium grows from one to three feet tall with vivid purple flowers (appearing white in this photograph because of the sun). The bracts and upper stem are often glandular (sticky), thus the scientific and common names. The plant was first collected for science by Thomas Nuttall and was named by Friedrich Fischer and Carl Meyer. "Viscos" is Latin for "sticky" and "issimum" is the Latin neutral superlative ending. |
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Geranium
richardsonii (Wild Geranium) Geraniaceae (Geranium Family) Foothills, montane,
subalpine. Woodlands, meadows. Summer, fall. Wild Geranium is one of the most common and longest flowering plants in the Four Corners area. It is found from low to high altitudes in meadows and Aspen and Spruce woodlands. It can have few stems, sparse leaves, and few flowers or, when it is in the moist soils it prefers, it can be luxuriously thick, almost shrub-like, with dozens of flowers. Although flowers are usually soft white with pink/lavender streaks, pale pink flowers are common. The palmate leaf resembles a Delphinium’s leaf. (Click to compare.) John Richardson was a surgeon and naturalist on several Arctic expeditions in the 19th century. The first specimen of Geranium richardsonii was not, however, collected by Richardson but by his fellow explorer, Thomas Drummond, in the Canadian Rockies, probably in 1826 or 1827. The plant was described and named by William Jackson Hooker in his 1831 volume of Flora Boreali-Americana. (More biographical information.) |
Range map © John Kartesz,
County Color Key
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Range map for Geranium caespitosum
Range map for Geranium richardsonii
Range map for Geranium viscosissimum |
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