Epilobium hornemannii
(Hornemann's Willowherb)
Epilobium hornemannii, Upper Straight Creek Trail, Summit Co. 8134
Epilobium hornemannii, Mayflower Gulch, Summit Co. 0411
Epilobium hornemannii, Mayflower Gulch, Summit Co. 6855
Epilobium hornemannii, Upper Straight Creek Trail, Summit Co. 8138
| Scientific Name | Epilobium hornemannii | USDA PLANTS Symbol | EPHOH |
| Common Name | Hornemann's Willowherb | ITIS Taxonomic Serial No. | 27307 |
| Family | Onagraceae (Evening Primrose) | SEINet Reference |
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| Description |
Life zones and habitat: Montane to alpine (8000 to 12000 ft.); moist areas along streambanks and in meadows. Plant: Leafy perennial 4 to 20 inches tall; stems are green or tan to reddish green, ascending or erect, usually simple and not branched, with small hairs in lines from leaf bases, becoming glandular above. Leaves: Lower leaves are opposite or alternate and elliptic to spatulate; upper leaves are opposite and ovate to lanceolate; blades are 5/8 to 2-1/2 inches long; very short (~1/4 inch) or no petioles; edges of lower leaves are usually smooth, becoming denticulate upwards with 10 to 25 teeth per side; surfaces have veins that are often inconspicuous, 4 to 7 per side. Inflorescence: Small pink to rose-purple flowers, rarely white, on stalks 1/4 to 2 inches long, each with 4 notched petals 3 to 10 mm long; anthers are light yellow, stigma is cream; sepals more than half the length of petals, sometimes red-tipped or bright red. Bloom Period: June to August. References: "Flora of Colorado" by Jennifer Ackerfield, Flora of North America, Jepson eFlora and SW Colorado Wildflowers. |
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