Plantago tweedyi, Tweedy's plantain, is a perennial herb in the Plantaginaceae. It is native to the western United States, from New Mexico and Arizona north to Montana.
Taxonomy
Plantago tweedyi was described and published in 1886 by
Asa Gray, who named it in honor of
Frank Tweedy, the first to collect it.
[ A. Gray et al., Syn. Fl. N. Amer. ed. 2, 2(1): 390. 1886.] Tweedy's specimen, the
holotype, is deposited in Gray Herbarium at Harvard.
[ Plantago Tweedyi holotype, Gray Herbarium]
In 1976, Plantago tweedyi was reclassified as P. eriopoda var. tweedyi by Bernard Boivin.[Le Naturaliste Canadien 93(6): 1062. 19661967.] In the Flora of North America (2019), Shipunov recognizes it as a full species.[ "Plantago tweedyi" in Flora of North America]
Description
Plantago tweedyi is a perennial herb to , from a stout taproot. Leaves are basal, lance-shaped, to long, glabrous (without hairs), and somewhat succulent or fleshy.
Inflorescences are cylindrical brownish-to-greenish spikes to long, on scapes (stems) long. Flowers are tiny, to , densely clustered in the spikes. Capsules are long.
[ Tweedy's plantain in Montana Field Guide] [
]
Distribution
Plantago tweedyi is native to the western United States, from northern New Mexico and northern Arizona north through Utah, Colorado and Wyoming to Idaho and Montana.[ Plantago tweedyi in USDA Plants Database] It grows in grasslands, sagebrush steppe, meadows, and on dry somewhat rocky hillsides at 1600–4000 m elevation.[ ][
]
History
Tweedy's Plantain was named by Asa Gray in honor of botanist Frank Tweedy, who made the first collection from grassy slopes along the East Fork of the Yellowstone River.[ At the time, he was working as a topographer for the US Geological Survey in Yellowstone National Park.]
External links
