Lomatium bradshawii
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Lomatium bradshawii |
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| ( Rose ex Math.) Math. & Const. |
Lomatium bradshawii is a species of the genus Lomatium within the umbelliferae family (Apiaceae). This endangered species is found in the northwestern US only in northwestern Oregon and in southwest Washington before and is there English Bradshaw's desert parsley called.
description
Vegetative characteristics
Lomatium bradshawii is a perennial herbaceous plant that usually reaches heights of 20 to 40, rarely up to 65 centimeters. It forms a slim and long taproot that enables it to survive in dry habitats. The entire caudex is located 2 to 5 centimeters below the surface of the earth, which gives the plant a stemless appearance.
Two to six leaves grow on fully grown specimens . The foliage leaf is 10 to 30 centimeters long and divided into three parts. With a length of 3 to 10 millimeters and a width of about 1 millimeter, the leaflets are linear or thread-shaped.
Generative characteristics
The flowering period extends from late April to early May, occasionally to early June. The 5 to 14 single umbels are on stems of different lengths in the double-lined inflorescence . The bracts are wide and three or two parts.
The pale yellow flowers are small. The petals during anthesis 2 to 5 millimeters long.
The are dry, bare Doppelachäne is with a length of 8 to 13 millimeters and a width of 5 to 7 millimeters are elongated. They have cork-reinforced “wings” that are no more than half the length of the entire fruit. The dorsal ribs common in the genus Lomatium are inconspicuous. The fruits ripen from mid-May to early July and are discarded when ripe.
Occurrence and protection
Lomatium bradshawii is only found in Oregon. It was common in the Willamette Valley before the expansion of agricultural use and the associated protection against landscape fires, which enabled herbaceous plants and shrubs to spread . Most of the known populations of Lomatium bradshawii are found within 10 mi (16 km) of Eugene, Oregon . The Willamette Valley has populations in Lane , Benton , Linn, and Marion counties . In Washington , Lomatium bradshawii grows on Puget Sound . The largest population of Lomatium bradshawii is found in Camas Meadows, Washington; 10,790,000 ± 2,010,000 copies were counted. The Berry Botanic Garden in Portland (Oregon) preserved Lomatium bradshawii in his seed library on.
Lomatium bradshawii grows at lower altitudes along rivers or in regularly flooded prairies . The species associated with Lomatium bradshawii include Deschampsia cespitosa , Juncus tenuis , Carex arcta , Carex unilateralis , Rosa pisocarpa and Fraxinus latifolia .
Lomatium bradshawii was considered extinct until 1979 after it was found again by a graduate of the University of Oregon .
Taxonomy
It was first described in 1934 under the name Leptotaenia bradshawii by Rose in Mildred Esther Mathias : Leaflets of Western Botany , 1, 10, pages 101-102. The new combination to Lomatium bradshawii was made in 1942 by Mildred Esther Mathias and Lincoln Constance : New Combinations and New Names in the Umbelliferae-II. Published in Bulletin of the Torrey Botanical Club , Volume 69, Issue 3, page 246.
Individual evidence
- ↑ Lomatium bradshawii in the Germplasm Resources Information Network (GRIN) USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved September 18, 2019.
- ↑ a b c d e f Lomatium bradshawii (Rose ex Math.) Math. & Const. . In: Rare Plant Field Guide . Washington State, Department of Natural Resources. Retrieved September 18, 2019. from Pamela Camp, John G. Gamon: Field Guide to the Rare Plants of Washington. 2011.
- ↑ IS Silvernail, A. Ottombrino-Haworth, L. Guenther, D. Andersen, R. Currin, M. Gisler, T. Kaye: Range-wide inventory of Bradshaw's lomatium (Lomatium bradshawii), a Federally-listed endangered species (= Report to the US Fish and Wildlife Service). Institute for Applied Ecology, Corvallis, Oregon 2016, p. 287.
- ↑ Lomatium bradshawii . In: National Collection of Imperiled Plants . Center for Plant Conservation. Archived from the original on August 19, 2009. Retrieved September 18, 2019.
- ↑ Barbara Perry Lawton: Parsleys, Fennels, and Queen Annes Lace . Timber Press, Portland 2007.
- ↑ a b Lomatium bradshawii at Tropicos.org. Missouri Botanical Garden, St. Louis, Retrieved September 18, 2019.
- ^ Mildred Esther Mathias, Lincoln Constance: New Combinations and New Names in the Umbelliferae-II. In: Bulletin of the Torrey Botanical Club , Volume 69, Issue 3, 1942, pp. 244-248. JSTOR 2481661
