Silphium albiflorum A. Gray
White Rosinweed, White-flowered Rosinweed, Compass Plant
Asteraceae (Aster Family)
USDA Symbol: SIAL
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 30 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: White
Bloom Time: May , Jun , Jul , Aug
Native Habitat: Prairie, Plains, Meadows, Pastures, Savannas, Hillsides, Slopes, Roadsides
Growing ConditionsWater Use: Low
Light Requirement: Sun
Soil Moisture: Dry
Soil pH: Acidic (pH<6.8)
Soil Description: Sandy, Gravelly, Limestone/chalky
Conditions Comments: This slow growing but extremely long-lived plant develops a tremendous taproot that can be as deep as 15 feet.
BenefitUse Ornamental: Perennial garden, Rocky hillside
Conspicuous Flowers: yes
Interesting Foliage: yes
Attracts: Birds , Butterflies
Nectar Source: yes
Deer Resistant: Moderate
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationPropagation Material: Seeds
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From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Wildflower Center Seed BankLBJWC-MLE-9 Collected 2009-07-10 in Lampasas County by Lady Bird Johnson Wildflower Center
BibliographyBibref 946 - Gardening with Prairie Plants: How to Create Beautiful Native Landscapes (2002) Wasowski, Sally
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
Search More Titles in Bibliography
Web ReferenceWebref 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 Silphium albiflorum in USDA Plants
FNA: Find Silphium albiflorum in the Flora of North America (if available)
Google: Search Google for Silphium albiflorum
MetadataRecord Modified: 2023-01-16
Research By: NPC