Vernonia lettermannii
From Infogalactic: the planetary knowledge core
| Vernonia lettermannii | |
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V. lettermannii
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| Binomial name | |
| Vernonia lettermannii Engelm. ex A. Gray
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| Synonyms[1] | |
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Cacalia lettermannii (Engelm. ex A. Gray) Kuntze |
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Vernonia lettermannii, the narrowleaf ironweed,[2] is a plant species known only from Arkansas and Oklahoma. It grows on floodplains and terraces at elevations of 100–200 m (330–660 ft).[3]
Vernonia lettermannii is a perennial herb up to 60 cm (24 in) tall. Leaves are filiform (thread-shaped), up to 9 cm (3.5 in) long but less than 3 mm (0.12 in) wide. Flower heads are purple, arranged as a corymb.[4][5][6]
References
- ↑ Tropicos
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Flora of North America
- ↑ Gray, Asa. Notes on Some Compositae 78. 1880.
- ↑ Robinson, H. 1999. Generic and subtribal classification of American Vernonieae. Smithsonian Contributions in Botany 89: i–iii, 1–116.
- ↑ Cronquist, A.J. 1980. Asteraceae. 1: i–xv, 1–261. In Vascular Flora of the Southeastern United States. The University of North Carolina Press, Chapel Hill.
