(Rock Spirea)
Holodiscus discolor var. dumosus, Curecanti Needle Overlook, Gunnison Co. 8192
Holodiscus discolor var. dumosus, Curecanti Needle Overlook, Gunnison Co. 8175
Holodiscus discolor var. dumosus, Along FR 311, Four Mile Area, Chaffee Co. 9693
Holodiscus discolor var. dumosus, Along FR 311, Four Mile Area, Chaffee Co. 9703
Holodiscus discolor var. dumosus, Zapata Falls Trail, Alamosa Co. 6064
Holodiscus discolor var. dumosus, Curecanti Needle Overlook, Gunnison Co. 8186
Holodiscus discolor var. dumosus, Along FR 311, Four Mile Area, Chaffee Co. 9701
Holodiscus discolor var. dumosus, Zapata Falls Trail, Alamosa Co. 6078
| Scientific Name | Holodiscus discolor var. dumosus (Holodiscus dumosus) | USDA PLANTS Symbol | HODU |
| Common Name | Rock Spirea | ITIS Taxonomic Serial No. | 536220 |
| Family | Rosaceae (Rose) | SEINet Reference |
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| Description | Life zones and habitat: Plains to montane (5200 to 10500 ft.); rocky canyons, cliffsides and coniferous forests. Plant: Shrub spreading to 10 ft. across; densely branched with reddish brown to grey stems and peeling bark when old. Leaves: oblanceolate to obovate or elliptic, 1/4 to 1-1/4 inches long and up to 1 inch wide; surfaces have pubescent hairs, dark green above, whitish green beneath; edges have rounded teeth; newer growth with solitary, alternate leaves; leaves on older growth are in clusters. Inflorescence: Many tiny white flowers in racemose clusters arising from leaf axils and at branch tips; flowers with 5 white, cream or pinkish petals less than 1/8-inch long with rounded tips; 5 very short pointed pinkish, hairy sepals; 5 pistils and numerous stamens. Bloom Period: June to September. References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest, SW Colorado Wildflowers and SEINet. |
BONAP Distribution Map Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains