Burke: Rumex crispus vs. Rumex sanguineus

	Rumex crispus	Rumex sanguineus
	curly dock, sour dock	red-vein dock
Habit	Erect perennial from a taproot, the stem 5-10 dm. tall, unbranched below the inflorescence.
Leaves	Basal leaves with sheathing stipules and long petioles, the blade oblong-lanceolate, 1-3 dm. long and up to 5 cm. wide, rounded or wedge-shaped at the base; cauline leaves reduced upward; all leaves with irregularly curled margins.
Flowers	Inflorescence a large, compact panicle, the branches nearly erect, leafy-bracteate to mid-length; pedicels slender, 1.5-2 times as long as the flowers, with a swollen joint well below mid-length; flowers perfect; outer 3 perianth segments ascending, 1.5 mm. long; inner 3 segments deltoid-ovate with a truncate base, 4-5 mm. long, usually with an oblong, veiny and pitted lump at the base; styles 3.
Fruits	Achene 1.5-2 mm. long, smooth.

	Rumex crispus	Rumex sanguineus
Flowering time	June-September	June-September
Habitat	Meadows, fields, roadsides, wastelots, and other disturbed, open areas.	sSream banks, disturbed ground, shores, and marshes.
Distribution	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring chiefly west of the Cascades crest in Washington; southwestern British Columbia to Oregon, also in eastern North America. [BONAP county map]
Origin	Introduced from Eurasia	Introduced from Eurasia
Conservation status	Not of concern	Not of concern
Sibling taxa	R. acetosa, R. acetosella, R. conglomeratus, R. dentatus, R. maritimus, R. obtusifolius, R. occidentalis, R. patientia, R. paucifolius, R. persicarioides, R. salicifolius, R. sanguineus, R. stenophyllus, R. venosus	R. acetosa, R. acetosella, R. conglomeratus, R. crispus, R. dentatus, R. maritimus, R. obtusifolius, R. occidentalis, R. patientia, R. paucifolius, R. persicarioides, R. salicifolius, R. stenophyllus, R. venosus
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, OR, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Rumex crispus

Rumex sanguineus

curly dock, sour dock

red-vein dock

Habit

Erect perennial from a taproot, the stem 5-10 dm. tall, unbranched below the inflorescence.

Leaves

Basal leaves with sheathing stipules and long petioles, the blade oblong-lanceolate, 1-3 dm. long and up to 5 cm. wide, rounded or wedge-shaped at the base;

cauline leaves reduced upward; all leaves with irregularly curled margins.

Flowers

Inflorescence a large, compact panicle, the branches nearly erect, leafy-bracteate to mid-length;

pedicels slender, 1.5-2 times as long as the flowers, with a swollen joint well below mid-length;

flowers perfect; outer 3 perianth segments ascending, 1.5 mm. long; inner 3 segments deltoid-ovate with a truncate base, 4-5 mm. long, usually with an oblong, veiny and pitted lump at the base;

styles 3.

Fruits

Achene 1.5-2 mm. long, smooth.