Eriogonum species

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Scientific Name Eriogonum cernuum USDA PLANTS Symbol ERCE2
Common Name Nodding Buckwheat ITIS Taxonomic Serial No. 21090
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Semi-desert, foothills and lower montane (4500 to 9300 ft); sandy areas, forests and sagebrush meadows.
Plant: Erect, branched annual to 20 inches tall.
Leaves: Rounded, wooly basal and lower-stem leaves.
Inflorescence: Many small white flower clusters pointing downward, each flower less than 1/10-inch across, white petals with reddish/pink tinge.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield and Wikipedia.
BONAP Distribution Map

Colorado Status:
Native
Scientific Name Eriogonum jamesii USDA PLANTS Symbol ERJA
Common Name James' Buckwheat ITIS Taxonomic Serial No. 21167
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Foothills and montane (5000 to 10000 ft.); meadows and woodlands.
Plant: Spreading perennial 8 to 10 inches with branching, fuzzy stems.
Leaves: Basal leaves petiolate, narrowly elliptic 1 to 1-1/2 inches long, and covered with fine hairs.
Inflorescence: Clusters of tiny white to cream flowers, each less than 1/4-inch across, with protruding stamens and styles.
Bloom Period: June to October.
References: "Flora of Colorado" by Jennifer Ackerfield, www.swcoloradowildflowers.com and SEINet.
BONAP Distribution Map

Colorado Status: Native
Scientific Name Eriogonum racemosum USDA PLANTS Symbol ERRA3
Common Name Red-root Buckwheat ITIS Taxonomic Serial No. 21230
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Foothills to montane (6000 to 10500 ft); dry, sandy or gravelly soils on flats and slopes, grass meadows, sagebrush areas and woodlands.
Plant: Erect perennial with one or more leafless, somewhat hairy, flowering stems 6 to 40 inches tall.
Leaves: Basal leaves ovate to elliptic to orbicular on petioles 1-1/4 to 4 inches long; lower surfaces grayish, with fine hairs; upper surfaces green, somewhat hairy to smooth; 5/8 to 2-3/8 inches long and 3/8 to 2 inches wide.
Inflorescence: Clusters of several to many white flowers in long racemes on short peduncles; each flowers with 6 white to pinkish tepals with a darker lengthwise stripe down the middle; protruding white filaments and pink anthers at the center; 3 triangular bracts underneath.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield, www.americansouthwest.net and SEINet.
BONAP Distribution Map

Colorado Status:
Native
Scientific Name Eriogonum umbellatum var. majus USDA PLANTS Symbol ERUMM
Common Name Sub-alpine Sulfur-flower, Sulphur-flower Buckwheat ITIS Taxonomic Serial No. 528020
Family Polygonaceae (Buckwheat) SEINet
Reference
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Description Life zones and habitat: Foothills to alpine (6500 to 12800 ft); dry slopes, sagebush meadows, forests or tundra.
Plant: Mat-forming perennial with erect stems 6 to 12 inches tall; stems hairy to smooth, leafless.
Leaves: Basal leaves oblanceolate to elliptic, lower surface grayish, densely covered with fine hairs; upper surfaces green, smooth or somewhat hairy; 3/8 to 3/4-inch long and up to 5/8-inch wide.
Inflorescence: Clusters of tiny, sometimes red-tinted, buds becoming creamy-white flowers, each less than 1/4-inch across, in large umbels with a single whorl of green, leafy bracts just below.
Bloom Period: June to September.
References: "Flora of Colorado" by Jennifer Ackerfield and Flora of North America.
BONAP Distribution Map

Colorado Status:
Native


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© Tom Lebsack 2020