Heuchera cylindrica Douglas ex Hook.
Roundleaf Alumroot, Poker Heuchera
Saxifragaceae (Saxifrage Family)
USDA Symbol: HECY2
Leathery leaves, varying from ovate to broadly heart-shaped, on long stalks clustered at base of flower stalks; upper plant densely covered with glandular hairs, especially in narrow, greenish-yellowish flower cluster.
The dense narrow flower cluster and the very short petals (or their absence) help distinguish this species from several others in the genus. Alumroot species are variable, making identification of many plants difficult.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Fruit Type: Capsule
Size Notes: Up to about 3 feet tall when flowering.
Bloom InformationBloom Color: White
Bloom Time: Apr , May , Jun , Jul , Aug
DistributionUSA: CA , ID , MT , NV , OR , WA , WY
Canada: AB , BC
Native Distribution: British Columbia and Alberta south to northeastern California and east to northern Nevada, Wyoming, and Montana.
Native Habitat: Rocky flats, slopes and cliffs.
Growing ConditionsWater Use: Low
Light Requirement: Part Shade , Shade
CaCO3 Tolerance: Low
BenefitConspicuous Flowers: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
View propagation protocol from Native Plants Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
Web ReferenceWebref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Heuchera cylindrica in USDA Plants
FNA: Find Heuchera cylindrica in the Flora of North America (if available)
Google: Search Google for Heuchera cylindrica
MetadataRecord Modified: 2023-05-17
Research By: TWC Staff