Rumex species

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Scientific Name Rumex acetosella USDA PLANTS Symbol RUAC3
Common Name Sheep Sorrel ITIS Taxonomic Serial No. 20934
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Foothills to alpine (5500 to 12000 ft); usually in acidic soils in meadows, roadsides and disturbed areas.
Plant: Erect or ascending perennial with several stems from the base that are branched in the upper portions when flowering, 4 to 18 inches tall.
Leaves: Mostly basal or on lower part of stems, alternate, ovate to ovate-lanceolate, hastate (at base) to entire 3/8 to 2-3/8 inches long; long-stalked; smooth surfaces.
Inflorescence: Broad or narrow, lax panicle usually in upper 2/3 of stem with clusters of 5 to 8 flowers arranged in whorls; blossom is green or purple becoming reddish, less than 1/8-inch across; two series of 6 tepals that spread widely showing creamy yellow to red stamens or styles and closing up after pollination.
Bloom Period: June to August.
References: "Flora of Colorado" by Jennifer Ackerfield, Minnesota Wildflowers and SEINet.
BONAP Distribution Map

Colorado Status:
Introduced
Scientific Name Rumex crispus USDA PLANTS Symbol RUCR
Common Name Curly Dock ITIS Taxonomic Serial No. 20937
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Plains to montane (3500 to 9500 ft); moist meadows, along streams, disturbed areas along roadsides and ditches; widespread.
Plant: Conspicuous, coarse-looking perennial, 16 to 40 inches high.
Leaves: Basal and stem leaves, alternate, lanceolate to elliptic-lanceolate leaves, 6 to 14 inches long and 3/4 to 2-3/8 inches wide; edges curled.
Inflorescence: Vertical spike-like panicles with many clusters of 10 to 25 flowers arranged in whorls, greenish-white/red turning rose-red later and maturing into reddish-brown seed heads; each flower about 1/8-inch long consisting of 3 inner sepals, 3 outer sepals, 3 styles, and an ovary; inner sepals (tepals) ovate-deltoid with mostly smooth edges, tubercules present.
Bloom Period: May to September.
References: "Flora of Colorado" by Jennifer Ackerfield, Illinois Wildflowers and SEINet.
BONAP Distribution Map

Colorado Status:
Introduced
Scientific Name Rumex densiflorus USDA PLANTS Symbol RUDE2
Common Name Alpine Dock ITIS Taxonomic Serial No. 20953
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Montane to alpine (5800 to 12000 ft); moist meadows, along streams, sunny areas.
Plant: Conspicuous, coarse-looking, tall perennial, 20 to 40 inches high.
Leaves: Very large basal and stem leaves, alternate, oblong or oblong-lanceolate leaves, 12 to 20 inches long and 4 to 6 inches wide; deeply veined and flat.
Inflorescence: Long vertical spike-like panicles with many clusters of 10 to 25 flowers arranged in whorls, greenish-white/red turning rose-red later and maturing into reddish-brown seed heads; inner tepals broadly ovate to almost deltoid, margins entire or minutely toothed, no tubercules.
Bloom Period: March to October.
References: "Flora of Colorado" by Jennifer Ackerfield and SEINet.
BONAP Distribution Map

Colorado Status:
Native



© Tom Lebsack 2021