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The
three Asteraceae pictured on this page were originally placed in the Senecio
genus by Asa Gray in the mid-1800s; many modern botanical guides,
including John Kartesz's Synthesis
of the North American Flora
and Intermountain Flora, retain this classification. But in
1973 William Weber made the case for moving these three to the Ligularia
genus, a genus established by Cassini in 1816; this
web site follows Weber's nomenclature.
Weber indicates that Ligularia has turbinate, nodding, succulent heads; succulent, coarsely dentate, often purplish, and clasping leaves; roots little branched and ropy; and a strong lemon scent. Senecio has none of these characteristics. "Ligula" is Latin for "strap", probably referring to the long petals or leaves of some members of this genus. |
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Synonym:
Ligularia amplectens. Senecio amplectens
variety amplectens. Subalpine, alpine.
Woodlands, openings. Summer. This is a common, very cheerful Sunflower that grows scattered or in small patches in high mountain mid-summer. It grows very straight and upright, but its flowers demurely nod. Flower rays are a bright lemon-yellow and ray tips are pointed. Some botanical keys indicate that basal leaves are withered at flowering time, but, as the photograph at left show, basal leaves can be present at flowering time. Lower leaves are wider, longer, and more numerous than stem leaves; all leaves may be relatively smooth margined or, as in this case, toothed. "Amplect" is "to embrace", referring to the way in which the base of the leaves clasps the stems, especially noticeable in the top leaf. Asa Gray named this plant Senecio amplectens in 1862 from a specimen collected by Charles Parry in Colorado. Synthesis of the North American Flora and Intermountain Flora combine this species with Ligularia holmii, shown at the bottom of this page; the species shown at the left is called Senecio amplectens variety amplectens and the species at the bottom of the page is called Senecio amplectens variety holmii. |
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Synonym:
Ligularia bigelovii. Senecio bigelovii. Asteraceae (Sunflower Family) Montane, subalpine. Meadows. Summer. So often hikers pass by this plant seeing only the dark maroon (sometimes yellow or green) nodding flower head and thinking that the flower is not yet open -- or that it is in seed. But tilting up the strongly nodding heads in mid and late summer will reveal a myriad of tightly packed yellow disk flowers. Ligularia bigelovii is quite common in mountain forests and meadows, often growing in large scattered clusters. It is very similar to Ligularia amplectens in its growth pattern but has no ray flowers. John Milton Bigelow, 1804-1878, was a botanist and member of several Western expeditions in the New Mexico area. He collected the first specimen of this plant for science in the mountains of north-central New Mexico while with the Whipple Survey in 1853-1855. Asa Gray named the plant in 1857. (More biographical information.) |
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Synonym:
Ligularia holmii, Senecio holmii.
Senecio amplectens variety holmii. Asteraceae (Sunflower Family) Subalpine, alpine. Meadows, scree.
Summer. Those who never climb to alpine scree fields miss so much. But even those who do, often miss the flowers because the rocks are so pervasive and arresting. Careful observation reveals numerous species of plants tucked into lichen-covered scree and talus fields. The lichen and wind and water erosion provide the soil for these plants to thrive. One such plant is the lovely Ligularia holmii here shown at 12,000 foot Sharkstooth Pass. L. holmii grows from two to twelve inches tall with a mass of vertical, reddish tinged, thick leaves and drooping, bright lemon yellow flowers. Herman Holm, 1854-1932, was a naturalist, explorer, and Assistant Botanist of the United States Department of Agriculture. He collected and wrote about Colorado flora. See the information above on Ligularia amplectens. (More biographical information.) |
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