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Calylophus berlandieri
Berlandier's sundrops , Square-bud primrose, Sundrops
Onagraceae (Evening-Primrose Family)
Description - Deciduous perennial herbaceous plant with showy, yellow flowers that are 2 in. across with four, broad, crinkled petals. This is a bushy, 4-20 in. plant that sometimes becomes woody near the base. Its leaves are narrow and spiny-toothed. Height 1-2 ft. Bloom Time: March – September.
Use - Excellent rock garden plant. Named for French-Swiss physician Jean Louis Berlandier (1805-1851) who collected plants in Texas and northern Mexico.
Native Habitat And Distribution - USA:CO , KS , LA , NM , OK , TX
S.w. KS through e. NM,OK & TX to n. Mex.; also Gulf states to AL

: Plains; woodland edges; roadsides.
Growing Conditions - Sun , part shade, drought and heat tolerant with low water requirements. Sandy or rocky soils. Moderate deer resistance.
Propagation - Propagation by seed is most successful if sown in fall. Take cuttings on new growth in early spring, sometimes in January.


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