Comments
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anglais
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fourni par eFloras
Eriogonum brachyanthum basically is a species of the Mojave Desert, extending northward in eastern California (Inyo, Kern, Los Angeles, Mono, Riverside, and San Bernardino counties) and along the Lahontan Trough of Nevada (Churchill, Esmeralda, Eureka, Humboldt, Lander, Lyon, Mineral, Nye, Pershing, and Washoe counties) to just north of Denio in Harney County, Oregon. It is common to abundant and even locally weedy in the northern Mojave Desert. Elsewhere it is less common and much more widely scattered. It often is found with other annual wild buckwheats forming dense patches (especially along highways) composed of several (up to seven in places) species, and care must be taken to sort them properly when making herbarium specimens.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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anglais
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fourni par eFloras
Herbs, spreading, (0.5-)1-3 dm, glabrous, greenish. Stems: aerial flowering stems erect, 0.3-0.8 dm, glabrous. Leaves basal; petiole 0.5-3 cm, tomentose; blade ovate to rounded, 0.5-2 × 0.5-2 cm, densely white-tomentose on both surfaces, rarely glabrate and grayish or greenish adaxially. Inflorescences cymose, occasionally distally uniparous due to suppression of secondary branches, usually diffuse, 5-25 × 5-30 cm; branches glabrous; bracts 0.5-2 × 0.5-2 mm. Peduncles absent. Involucres somewhat appressed to branches, turbinate, 1-1.2 × 0.4-0.6 mm, glabrous; teeth 5, erect, 0.2-0.3 mm. Flowers 0.6-0.8(-1) mm; perianth yellow or pale yellowish, rarely whitish, glabrous; tepals slightly dimorphic, those of outer whorl oblong to oblong-obovate, those of inner whorl narrowly oblong; stamens included, 0.5-0.8 mm; filaments pilose proximally. Achenes dark brown, 3-gonous, 0.8-1 mm.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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anglais
)
fourni par eFloras
Sandy to gravelly flats, washes, and slopes, saltbush, greasewood, and sagebrush communities, pinyon-juniper and montane conifer woodlands; 600-2300m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
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anglais
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fourni par eFloras
Eriogonum baileyi S. Watson var. brachyanthum (Coville) Jepson; E. vimineum Douglas ex Bentham var. brachyanthum (Coville) S. Stokes
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Eriogonum brachyanthum: Brief Summary
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anglais
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fourni par wikipedia EN
Eriogonum brachyanthum is a species of wild buckwheat that is commonly known as shortflower buckwheat. It is native to eastern California and western Nevada, particularly the Mojave Desert region, where it is common to abundant, and even sometimes weedy. It is also known from southern Oregon. The plant grows in sandy habitats such as desert flats and sagebrush. It also grows in pinyon-juniper and montane conifer woodlands. It is an annual herb that grows 30 to 40 centimeters tall. Leaves are located at the base of the stem, woolly, and oval or rounded in shape. The top of the stem is occupied by a branching inflorescence bearing many widely spaced clusters of flowers. Each individual flower is about a millimeter wide and light yellow in color. Flowers bloom from April to November.
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Eriogonum brachyanthum: Brief Summary
(
vietnamien
)
fourni par wikipedia VI
Eriogonum brachyanthum là một loài thực vật có hoa trong họ Rau răm. Loài này được Coville mô tả khoa học đầu tiên năm 1893.
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