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Calylophus berlandieri ssp. pinifolius
Calylophus berlandieri Spach ssp. pinifolius (Engelm. ex A. Gray) Towner
Berlandier's Sundrops, Square-bud Primrose, Sundrops, Square-bud Day-primrose
Onagraceae (Evening Primrose Family)
Synonym(s): Calylophus drummondianus, Calylophus serrulatus var. spinulosus, Meriolix capillifolia, Meriolix hillii, Meriolix melanoglottis, Oenothera serrulata ssp. pinifolia
USDA Symbol: CABEP2
USDA Native Status: L48 (N)
Named for French-Swiss physician Jean Louis Berlandier (1805-1851) who collected plants in Texas and northern Mexico.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Fruit Type: Capsule
Size Notes: Up to about 30 inches tall, plant usually not bushy.
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep
DistributionUSA: NM , OK , TX
Native Habitat: Sandy soils in Panhandle, rocky grassland in central Texas, South Plains, and Gulf Prairies. Well-drained sand, clay, limestone, caliche.
Growing ConditionsWater Use: Low
Light Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Caliche type, Limestone-based, Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay
Conditions Comments: The bright flowers of sundrops liven up perennial borders and wildflower meadows. The leaves are linear and wider near the tips than at their bases (oblanceolate). Sundrops will grow on fairly dry sites. Cut back to new emerging foliage in early spring and "tip" or deadhead after flowering, to keep the plants compact, if desired. This species has a more upright form and also a low growing mat or groundcover form. Both are attractive and blooms are the same.
BenefitUse Ornamental: Blooms ornamental, Showy, Attractive, Rock gardens, Perennial garden, Color
Use Wildlife: Nectar-insects
Conspicuous Flowers: yes
Deer Resistant: Moderate
PropagationPropagation Material: Seeds
Commercially Avail: yes
Mr. Smarty Plants says
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March 11, 2009
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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
Texas Parks and Wildlife Department - Austin, TX
BibliographyBibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 281 - Shinners & Mahler's Illustrated Flora of North Central Texas (1999) Diggs, G. M.; B. L. Lipscomb; B. O'Kennon; W. F...
Bibref 291 - Texas Wildscapes: Gardening for Wildlife (1999) Damude, N. & K.C. Bender
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 Calylophus berlandieri ssp. pinifolius in USDA Plants
FNA: Find Calylophus berlandieri ssp. pinifolius in the Flora of North America (if available)
Google: Search Google for Calylophus berlandieri ssp. pinifolius
MetadataRecord Modified: 2023-04-19
Research By: TWC Staff