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Hypericaceae
Hypericum

not marked as a favorite taxon Hypericum crux-andreae (Linnaeus) Crantz. Common name: St. Andrew's Cross, St. Peter's-wort. Phenology: Jun-Oct. Habitat: Pine flatwoods, pine savannas, bogs, seeps, mesic to dryish forests and woodlands. Distribution: New York (Long Island) and New Jersey south to s. Florida, west to e. Texas, primarily on the Coastal Plain, but scattered inland to w. North Carolina and n. Georgia, also north in the interior to c. Tennessee, s. Kentucky, c. Arkansas, and se. Oklahoma.

Glossary (beta!)

Section: Myriandra.

Origin/Endemic status: Endemic

Synonymy ⓘ: = Ar, Fl2, FNA6, GW2, K1, K4, NcTx, NS, Pa, POWO, Tn, W, WH3, Godfrey (1988), Robson (1996); = Ascyrum stans Michx. ex Willd. — F, G, Tat, Tx; = Hypericum stans (Michx. ex Willd.) W.P.Adams & Robson — C, RAB, Adams (1962), Adams (1973); > Ascyrum cuneifolium Chapman — S, S13; > Ascyrum stans Michx. ex Willd. — S, S13. Basionym: Ascyrum crux-andreae L. 1753

Links to other floras: = Hypericum crux-andreae - FNA6

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FACU
  • Great Plains: FAC
  • Northcentral & Northeast: FACU

Heliophily ⓘ: 7

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image #1 of Hypericum crux-andreae© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #2 of Hypericum crux-andreae© Scott Ward | Original Image ⭷
image #3 of Hypericum crux-andreae© Bruce A. Sorrie | Original Image ⭷
image #4 of Hypericum crux-andreae© Scott Ward | Original Image ⭷
image #5 of Hypericum crux-andreae© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #6 of Hypericum crux-andreae© Jay Horn source | Original Image ⭷
image #7 of Hypericum crux-andreae© Jay Horn source | Original Image ⭷
image #8 of Hypericum crux-andreae© Will Stuart | Original Image ⭷
image #9 of Hypericum crux-andreae© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #10 of Hypericum crux-andreae© Alan Cressler: hypericum crux-andreae, sansavilla wildlife management area, glynn county, georgia 1 by Alan Cressler source | Original Image ⭷

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Horticultural Information

NCBG trait

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Height: 1-3 ft.

plant sale text: Hypericum crux-andreae is a small, upright, narrow (1-3 ft spread), semi-evergreen shrub native to the Southeastern US in moist sandy woods, pinelands, stream banks, wet prairies and pond margins, as well as occasionally on drier upland sites. Beginning in the summer this species produces lemony yellow flowers comprised of four petals instead of the typical five for the genus. In addition to its extended floral display, lasting into the fall, St. Peter's-wort displays attractive shedding bark on older wood. The Hypericum genus supports up to 20 lepidoptera species.

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cultural notes:

germination code: 2

native range: eastern United States