Plant Index


 
 
 
 

Hypericum crux-andreae

Hypericum crux-andreae (L.) Crantz

st. peter’s-wort, st. andrew’s cross, st. peterswort

Synonym(s): Ascyrum crux-andreae, Ascyrum cuneifolium, Ascyrum stans, Hypericum stans
Hypericum crux-andreae (St. Peter’s-wort)
Image ID: 24690
Image by: Stuart, Will
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: HYCR3
SCIENTIFIC NAME: Hypericum crux-andreae
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2019-11-25

GENUS INDEX

GENUS CODE: HYPER
GENUS SCIENTIFIC: Hypericum
GENUS AUTHORITY: L.
GENUS COMMON: St. Johnswort
GENUS SUMMARY: A genus of 370-420 species, trees, shrubs, and herbs, primarily temperate. Hypericum in our area is a large, complex, and interesting genus, with a number of unresolved questions remaining. Following Nürk et al. (2013), it seems best to circumscribe Hypericum to include Triadenum (in Key A) and Thornea (the latter not relevant to our area), but not Vismia and Harungana. The species treated in Key C have often been treated in the segregate genus Ascyrum; evidence from a variety of disciplines now suggests that they should be included in Hypericum (Adams & Robson 1961; Calie, Schilling, & Webb 1983; Robson 1996; Nürk et al. 2013). Triadenum, while almost basal in Hypericum, should also be included (Nürk et al. 2013).
GENUS IDENTIFICATION: Identification notes: “Longest leaves” should be sought at branch nodes.
GENUS REFERENCES: Sorrie (2012)=U; Adams (1973)=Z; Godfrey (1988)=Y; Robson (1977, 1981, 1990, 1996, 2001, 2002, 2006)=X; Adams (1962)=V; Allison (2011)=Q; Adams (1957); Webb (1980); Robson & Adams (1968); Adams & Robson (1961); Calie, Schilling, & Webb (1983); Culwell (1970); Nürk et al. (2013); Cooperrider (1989); Stevens in Kubitzki, Bayer, & Stevens (2007). Key based in part on Adams (1973), Godfrey (1988), C, and GW. {add for FL: Hypericum cumulicola, Hypericum edisonianum, and also add ‘not yet keyed’ Hypericum dolabriforme and Hypericum erythreae}

FAMILY INDEX

FAMILY CODE: HYPERIC
FAMILY SCIENTIFIC: Hypericaceae
FAMILY AUTHORITY: A.L. de Jussieu 1789
FAMILY COMMON: St. John's-wort Family
FAMILY SUMMARY: A family of 7-9 genera and 480-560 species, herbs, shrubs, and trees, nearly cosmopolitan. It appears from molecular analysis that recognition of the Hypericaceae is (after all) warranted. Hypericum is in a clade with Podostemum and Bonnetia, sister to a clade including Clusiaceae s.s. (Savolainen et al. 2000), and unless the morphologically very different Podostemaceae is to be included in a broad Clusiaceae, Hypericaceae and Podostemaceae must be recognized.
FAMILY REFERENCE: Adams (1973)=Z; Godfrey (1988)=Y; Wood & Adams (1976); Stevens in Kubitzki, Bayer, & Stevens (2007).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT: 1-3 ft.

DURATION: Perennial
HABIT: Subshrub, Shrub

LEAF ARRANGEMENT:
LEAF COMPLEXITY:
LEAF RETENTION:

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: June-Oct
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x x x x

BLOOM COLOR: Light yellow flowers
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE: Dry forests, Moist forests, Pine savannas
NATIVE RANGE: eastern United States

HORTICULTURAL
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.

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Average, Moist/Wet
LIGHT EXPOSURE: Sun, Part Shade, Shade
MINIMUM HARDINESS ZONE: 5
MAXIMUM HARDINESS ZONE: 8
GERMINATION CODE:
WILDLIFE VALUE: Bee Friendly, Butterfly Friendly
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
120 2012-0094 2012-11-13 121 View
1945 1986-1732 View
2191 1986-2003 View
4613 1992-0769 View
9442 2021-0101 2021-07-01 0 View


GRIM COLLECTIONS

Coll_id Project Collection date Collector Action
121 HORT 2010-10-22 Poythress View


GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
220 120 15 Liloia 2012-10-01 View
221 120 14 Summer 2013-04-25 View
3098 1945 63 NCBG staff 1986-12-22 View
3099 1945 64 NCBG staff 1986-12-22 View
3785 2191 58 NCBG staff 1986-12-23 View
6942 4613 200 NCBG staff 1993-03-01 View
12719 0 12 Liloia 0000-00-00 View
12778 9442 14 Liloia 0000-00-00 View

USDA PLANTS DATABASE

USDA Symbol: HYCR3
USDA Common Name: St. Peterswort
Native Status: L48 (N)
Distribution: USA (AL, AR, DC, DE, FL, GA, KY, LA, MD, MS, NC, NJ, NY, OK, PA, SC, TN, TX, VA)
Duration: Perennial
Growth Habit: Subshrub, Shrub

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACW FACU FAC FACU

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

WEAKLEY FLORA

SCIENTIFIC NAME: Hypericum crux-andreae
COMMON NAME: St. Andrew's Cross, St. Peter's-wort
SYNONYMY: [= GW, K, Pa, W, WH3, X, Y; = H. stans (Michaux ex Willdenow) W.P. Adams & Robson - C, RAB, V, Z; = Ascyrum stans Michaux ex Willdenow - F, G; > Ascyrum stans - S; > Ascyrum cuneifolium Chapman - S]
PHENOLOGY: Jun-Oct.
HABITAT: Pine flatwoods, pine savannas, bogs, seeps, mesc to dryish forests and woodlands.
COMMENTS: NY (Long Island) and NJ south to s. FL, west to e. TX, primarily on the Coastal Plain, but scattered inland to w. NC and n. GA, also north in the interior to c. TN, s. KY, c. AR, and se. OK.
RANGE MAP: Hypericum crux-andreae.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Hypericaceae A.L. de Jussieu 1789 (St. John's-wort Family)
SUMMARY: A family of 7-9 genera and 480-560 species, herbs, shrubs, and trees, nearly cosmopolitan. It appears from molecular analysis that recognition of the Hypericaceae is (after all) warranted. Hypericum is in a clade with Podostemum and Bonnetia, sister to a clade including Clusiaceae s.s. (Savolainen et al. 2000), and unless the morphologically very different Podostemaceae is to be included in a broad Clusiaceae, Hypericaceae and Podostemaceae must be recognized.
REFERENCE: Adams (1973)=Z; Godfrey (1988)=Y; Wood & Adams (1976); Stevens in Kubitzki, Bayer, & Stevens (2007).
ABOUT GENUS (Weakley Flora)
Hypericum L. (St. Johnswort)
SUMMARY: A genus of 370-420 species, trees, shrubs, and herbs, primarily temperate. Hypericum in our area is a large, complex, and interesting genus, with a number of unresolved questions remaining. Following Nürk et al. (2013), it seems best to circumscribe Hypericum to include Triadenum (in Key A) and Thornea (the latter not relevant to our area), but not Vismia and Harungana. The species treated in Key C have often been treated in the segregate genus Ascyrum; evidence from a variety of disciplines now suggests that they should be included in Hypericum (Adams & Robson 1961; Calie, Schilling, & Webb 1983; Robson 1996; Nürk et al. 2013). Triadenum, while almost basal in Hypericum, should also be included (Nürk et al. 2013).
REFERENCE: Sorrie (2012)=U; Adams (1973)=Z; Godfrey (1988)=Y; Robson (1977, 1981, 1990, 1996, 2001, 2002, 2006)=X; Adams (1962)=V; Allison (2011)=Q; Adams (1957); Webb (1980); Robson & Adams (1968); Adams & Robson (1961); Calie, Schilling, & Webb (1983); Culwell (1970); Nürk et al. (2013); Cooperrider (1989); Stevens in Kubitzki, Bayer, & Stevens (2007). Key based in part on Adams (1973), Godfrey (1988), C, and GW. {add for FL: Hypericum cumulicola, Hypericum edisonianum, and also add ‘not yet keyed’ Hypericum dolabriforme and Hypericum erythreae}

HERBARIUM RESOURCES

SERNEC: Find Hypericum crux-andreae in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Hypericum crux-andreae in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Hypericum crux-andreae in USDA Plants
NPIN: Find Hypericum crux-andreae in NPIN Database
FNA: Find Hypericum crux-andreae in the Flora of North America (if available)
Google: Search Google for Hypericum crux-andreae

NCBG IMAGE RECORDS

ID IMAGE1: 24690
ID IMAGE2: 18119
ID IMAGE3: 24690

From the Image Gallery


Image ID: 18119

Image ID: 11314
3 photo(s) available in the Image Gallery

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