Comments
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Inglês
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fornecido por eFloras
Rumex hastatulus is distinct in subg. Acetosa and belongs to the monotypic subsect. Americanae Á. Löve & N. Sarkar. It is represented by at least two chromosome races: populations occurring from North Carolina to Florida and Mississippi normally have 2n = 8 in pistillate plants and 2n = 9 in staminate plants; populations from Louisiana to Texas and Oklahoma predominantly have 2n = 10 in both sexes. Rumex hastatulus has been reported from New Mexico (W. C. Martin and C. R. Hutchins 1980, vol. 1), but those records need confirmation. When fruiting, R. hastatulus has large inner tepals that distinguish it from R. acetosella, with which it is occasionally confused.
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Description
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Inglês
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fornecido por eFloras
Plants annual or short-lived perennial, glabrous, with vertical rootstock. Stems solitary or several from base, erect or ascending, branched in distal 2/ 3 (in inflorescence), 10-40(-45) cm. Leaves: blade obovate-oblong, ovate-lanceolate, oblong-lanceolate, or lanceolate; 2-6(-10) × 0.5-2 cm, base hastate (with spreading lobes), auriculate, or occasionally without evident lobes, margins entire, flat, apex obtuse or subacute. Inflorescences terminal, occupying distal 3 of stem, usually lax and interrupted, narrowly paniculate. Pedicels articulated in proximal part, filiform, 1.5-2.5(-3) mm, articulation indistinct or slightly swollen. Flowers 3-6(-8) in whorls; inner tepals orbiculate or broadly ovate, 2.5-3.2 × 2.7-3.2 mm, base broadly cordate or rounded, apex obtuse or subacute; tubercles absent or some inner tepals with slightly swollen central veins. Achenes brown or dark brown, 0.9-1.2 × 0.6-0.8 mm. 2n = 8 (pistillate plants), 9 (staminate plants), 10 (both sexes).
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Distribution
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Inglês
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fornecido por eFloras
Ala., Ark., Fla., Ga., Ill., Ind., Kans., La., Md., Miss., Mo., N.Y., N.C., Okla., Pa., S.C., Tenn., Tex., Va.
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Habitat
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Inglês
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Dry to moist alluvial and ruderal habitats, river valleys, sandy plains, meadows, waste places; 0-500m.
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Synonym
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Inglês
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fornecido por eFloras
Acetosa hastatula (Baldwin) Á. Löve; Rumex engelmannii Meisner
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Rumex hastatulus
(
Inglês
)
fornecido por wikipedia EN
Rumex hastatulus, commonly known as the heartwing sorrel, is an annual flowering plant species in the family Polygonaceae otherwise known as the buckwheat family.[1] It is found spread out through the eastern and southern United States.[2]
Description
Rumex hastatulus is an erect herb-like with simple, oblong, alternate leaves ranging from 2–6 cm (0.79–2.36 in) long and 0.5–2 cm (0.20–0.79 in). The flowers are bright red and carried in a branched cluster and are from 2.5–3.2 mm (0.098–0.126 in) long and 2.7–3.2 mm (0.11–0.13 in) wide.[3] The fruit is a brownish orange color. When eaten the leaves flowers and seeds have been described to have a sour taste and are edible in small doses.
Rumex hastatulus is dioecious, with separate male and female plants.[4]
Distribution
The plant is found in the eastern and southeastern parts of North America in areas with alluvial or ruderal habitats such as river valleys meadows and waste areas.[5]
Uses
Despite being known to be poisonous[1] Rumex hastatulus has been commonly used in small doses in different types of salads in parts of and soups. While the culinary uses for the plant are limited due to it being known to cause nausea stomach cramps and headaches in large portions it is at times used in France as a form of "sorrel soup". The plant is also commonly used to study due to its unique genetic structure. Due to their complex chromosomal makeup their sex is determined by the ratio of x and y chromosomes. This gender determination system is unique in flowering plants leading to a lot of research being done into environmental and genetic factors in that determine the sex.[6]
References
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^ a b "Rumex hastatulus (Hastate-leaved Dock, Heartwing Sorrel, Sorrel, Sour Dock) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2019-10-03.
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^ Smith, Ben W. (1964). "The Evolving Karyotype of Rumex hastatulus". Evolution. 18 (1): 93–104. doi:10.2307/2406423. ISSN 0014-3820. JSTOR 2406423.
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^ "Rumex hastatulus in Flora of North America @ efloras.org". www.efloras.org. Retrieved 2019-10-06.
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^ Kasjaniuk, Magdalena; Grabowska-Joachimiak, Aleksandra; Joachimiak, Andrzej J. (2019). "Testing the translocation hypothesis and Haldane's rule in Rumex hastatulus". Protoplasma. 256 (1): 237–247. doi:10.1007/s00709-018-1295-0. PMC 6349804. PMID 30073414.
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^ "SEINet Portal Network - Rumex hastatulus". swbiodiversity.org. Retrieved 2019-10-06.
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^ Grabowska-Joachimiak, Aleksandra; Kula, Adam; Książczyk, Tomasz; Chojnicka, Joanna; Sliwinska, Elwira; Joachimiak, Andrzej J. (2015). "Chromosome landmarks and autosome-sex chromosome translocations in Rumex hastatulus, a plant with XX/XY1Y2 sex chromosome system". Chromosome Research. 23 (2): 187–197. doi:10.1007/s10577-014-9446-4. ISSN 0967-3849. PMC 4430600. PMID 25394583.
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Rumex hastatulus: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Rumex hastatulus, commonly known as the heartwing sorrel, is an annual flowering plant species in the family Polygonaceae otherwise known as the buckwheat family. It is found spread out through the eastern and southern United States.
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Rumex hastatulus
(
Vietnamita
)
fornecido por wikipedia VI
Rumex hastatulus là một loài thực vật có hoa trong họ Rau răm. Loài này được Baldwin miêu tả khoa học đầu tiên năm 1821.[1]
Chú thích
Liên kết ngoài
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Rumex hastatulus: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Rumex hastatulus là một loài thực vật có hoa trong họ Rau răm. Loài này được Baldwin miêu tả khoa học đầu tiên năm 1821.
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- Wikipedia tác giả và biên tập viên
