Hypericum crux-andreae (L.) Crantz
St. Peter's-wort, Atlantic St. Peter's-wort, St. Peter's Cross, St. John's-wort
Clusiaceae (Mangosteen Family)
Synonym(s): Ascyrum crux-andreae, Ascyrum cuneifolium, Ascyrum stans, Hypericum stans
USDA Symbol: HYCR3
An erect shrub with lemon yellow flowers at branch tips.
This shrubby member of the St.-John's-wort family has only four petals instead of the usual five, and the sepals are of very unequal sizes. The similar St. Andrew's Cross (H. hypericoides), with two styles, inner sepals minute or absent, and narrower leaves, is found on sandy sites from Massachusetts south to Florida, west to Texas, and north to Kansas; in the north it may form a mat on the ground. Low St. Andrew's Cross (H. suffruticosum) is only 2 1/2-6 inches (6.5-15 cm) tall, with usually only two sepals, the flowers eventually nodding; it is found in sandy sites in the coastal plain from South Carolina south to Florida and west to Louisiana.
From the Image Gallery
Bloom InformationBloom Color: Yellow
Bloom Time: Jun , Jul , Aug , Sep , Oct
DistributionUSA: AL , AR , DC , DE , FL , GA , KY , LA , MD , MS , NC , NJ , NY , OK , PA , SC , TN , TX , VA
Native Distribution: New York south to Florida, west to Texas, and north to Oklahoma, Arkansas, and Kentucky.
Native Habitat: Sandy sites and pine barrens.
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade
CaCO3 Tolerance: Low
BenefitConspicuous Flowers: yes
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Crosby Arboretum - Picayune, MS
Additional resourcesUSDA: Find Hypericum crux-andreae in USDA Plants
FNA: Find Hypericum crux-andreae in the Flora of North America (if available)
Google: Search Google for Hypericum crux-andreae
MetadataRecord Modified: 2021-07-27
Research By: TWC Staff